Alternatives to CSS HTML Validator
Compare CSS HTML Validator alternatives for your business or organization using the curated list below. SourceForge ranks the best alternatives to CSS HTML Validator in 2025. Compare features, ratings, user reviews, pricing, and more from CSS HTML Validator competitors and alternatives in order to make an informed decision for your business.
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1
Seobility
Seobility
Seobility checks your complete website, by crawling all linked pages. All found pages with errors, problems with the on-page optimization or problems regarding the page content like duplicate content are collected and displayed in each check section. Of course, you can also analyze all problems of a single page in our page browser. For a sustainable and continuous review of your website, each project is constantly crawled and analyzed by our crawlers to track the progress of your optimization. You will also be notified by our monitoring service with the status of your website via e-mail, if server errors and major problems occur. Seobility not only provides a detailed SEO audit but also gives tips and instructions on how to fix the problems found on your website. By fixing these issues, you make sure that Google can access all of your relevant content and understand what it’s about in order to match it with suitable search queries. -
2
TinyPNG
Tinify
TinyPNG (by Tinify) is a free image optimization tool trusted by developers and designers worldwide. It uses smart lossy compression to compress JPEG, PNG, WebP, and AVIF files by up to 80% without visible quality loss - boosting speed, SEO, and reducing bandwidth. Compress, convert, and resize images via our intuitive web app or powerful API. SDKs are available for Python, Node.js, PHP, Java, Ruby, and .NET. Includes an official WordPress plugin and a growing ecosystem of community-built integrations. Tinify is simple and accessible with no complex settings, no guesswork. It just works. Whether you're a beginner or building for scale, you get reliable results fast. All plans start with a generous free tier, and responsive customer support is here when you need help. George the panda 🐼 would be thrilled to see you give it a try.Starting Price: $0 -
3
Ahrefs
Ahrefs
With Ahrefs, you don’t have to be an SEO pro to rank higher and get more traffic. Ahrefs is trusted by marketers from the world's biggest brands. Ahrefs is an All-in-one SEO toolset, with free Learning materials and a passionate Community & support. Junior marketer or SEO expert, you'll find Ahrefs’ toolset powerful yet easy to master. Try Ahrefs for a week and discover the growth opportunities you’re missing. Get access to Ahrefs InsiderͰ, our private Facebook community, where you can bounce ideas and questions off 10,000 SEO-obsessed marketers who have seen it all. Ask any questions to our customer support team who is happy to talk to you 24/5 via our support chat. Or just simply poke us on Twitter. From aspiring bloggers to global multinational brands, everyone turns to Ahrefs to grow their search traffic. Ahrefs is used by marketers from some of the world’s leading companies.Starting Price: $99.00 per user per month -
4
Elite Site Optimizer
eGrove Systems
Elite Site Optimizer - a comprehensive website audit and optimization tool making digital marketing easy. Elite Site Optimizer offers a complete suite of SEO, Audit, Optimization and Content quality check features. A platform to identify and fix issues with your website's content, performance, accessibility, and Total Experience! Leverage the power of 60+ tools and make a smarter step to digital transformation. What Elite Site Optimizer can do for you: > Audit your website’s content and code > Find out if your site is accessible > Make your site more discoverable on search engines > Help you build your own SEO marketing strategy > Provide reports about every last detail of your site.Starting Price: $49.00/month -
5
DubBot
DubBot
Web governance software that works as hard as you do. Ensure accessibility for all your web visitors to provide the best user experience possible. DubBot tests your sites for all levels of web accessibility as defined by WCAG 2.1. Stop sending your visitors into black holes. Easily detect broken links throughout your website content so you can correct them swiftly. Enforce legal, style, branding, and regulatory requirements with customizable Web Governance Checks. Easily create custom content checks that are specific to your organization’s policies. Put your best foot forward. Stay on-brand by avoiding embarrassing misspellings. Receive scores for your web content that can help to identify if it is too dense and verbose. Quickly check that your content is getting the most bang for its buck. DubBot tests that your webpages follow SEO best practices. Utilizing DubBot, you can easily see SEO quick wins and start working toward improving your content’s potential search ranking. -
6
Auditzy
Auditzy
Auditzy brings you reports in a few clicks, while most page speed tools require detailed setup and supervision. With Auditzy, businesses understand their web page performance, accessibility, and Technical SEO insights across multiple technical parameters to enhance visitor interactivity experience for websites. These checks highlight opportunities to improve the performance of your web app. Auditzy offers a free web page speed test through a simple and user-friendly graphical interface to provide a quality performance report. With Auditzy, gain insights and suggestions about your performance metrics and how to improve them in business terms. Auditzy insights are not just limited to your website. You can also deep dive into competitive analysis and compete in a smarter way with your competitors. Auditzy™ provides comparative analysis across multiple portfolios to understand and overcome your shortcomings.Starting Price: $5 per month -
7
Silktide
Silktide
Silktide gives you everything you need to make your website better, with automated accessibility testing, content optimization, and digital marketing in one platform. Silktide is used by thousands of customers to analyze tens of millions of websites every year. We cover almost every aspect of your web presence, including content, accessibility, marketing, mobile, speed, and legal compliance. Visit our website to see a live platform demonstration. -
8
A11yInspect
BarrierBreak
A11yInspect is an accessibility browser extension that makes accessibility testing simple. It detects failures, identifies accessibility issues to validate and highlights code. It reduces time taken to implement accessibility for your developers and accessibility professionals. Check out what A11yInspect can do for you: 1) Highlight Code 2) Wide Range of Bookmarklets 3) View your Scan Log 4) Download Screenshots 5) Key Code Attribute Key features include: 1) Exhaustive Rulesets: Frequently updated to improve the accuracy, reduce false positives and increase coverage of the accessibility guidelines. 2) WCAG Conformance: Success Criteria and Severity mapping helps you plan accessibility implementation. 3) Detailed Analysis: Test by specific elements or all elements. Easy to understand issues categorized as Fails, Validates & Suggestions. 4) Analyse Color Palette: In-built color contrast checker & CSS overview Download A11yInspect Now!Starting Price: $87.89 -
9
Acquia Optimize
Acquia
Acquia Optimize is a leading web governance solution designed to enable organizations to deliver a superior and inclusive user experience across their digital presence and support their journey to ensure communications are open, optimized, and compliant. The Acquia Optimize Platform includes a cohesive suite of tools for web accessibility, website quality assurance, brand and content compliance, user consent management, social and web content archiving, and more. -
10
Borlabs Cache
Borlabs
Just activate Borlabs Cache and the speed of your website will increase immediately. Choose from our cache templates e.g. E-Commerce, and Borlabs Cache is automatically optimized for your online store. All your pages will be cached and saved in milliseconds. Fast loading pages are essential for improving your search engine optimization. Our cache preloader ensures that your content is always up to date and your website is loaded super fast. Merges JavaScript and CSS to single files and sends them compressed to your visitors. Removes the unnecessary whitespace and HTML comments in your page and optimizes the embedding of Google Fonts. This reduces the size and loading time of your website. Allows you to execute PHP code or dynamic content in cached pages. Useful when displaying banners, shopping baskets or other information that is constantly changing.Starting Price: €29 per 1 website -
11
DemandJump
DemandJump
DemandJump is the leading Marketing Insights & Attribution Platform, showing marketers what their target audience is doing, what their competitors are doing, and what actions they should take next to achieve better outcomes. Customers are empowered by knowing what content to write, what keywords to include, which websites to target, videos to produce, and much more. DemandJump gathers and assembles disparate data to create networks of customer touchpoints around any topic or keyword, prioritizing what actions to take next. Finally, companies can close the loop between sales and marketing by seeing exactly which actions drive pipeline and grow revenue.Starting Price: $99 per month -
12
Plerdy
Plerdy
Plerdy - Multifunctional SaaS solution for an improvement of conversion on websites. - Heatmaps - we see exactly where the clicks were on the website. All clicks on the website are recorded and displayed in real time. Which helps to understand how users behave on the website. - Popup smart forms - you can quickly create and show on the website different pop-up forms without developers and designer. Examples: The pop-up form for collecting leads from the website. Offer to the users when they abandon their shopping cart. - SEO-alerts - tool that continuously analyzes your website SEO factors to provide regular notifications on changes. Checks keywords, titles, tags and attributes to define what can be optimized. Provides both aggregated and on-page statistics to evaluate your web resource.Starting Price: 29$/month -
13
Auditsu
Auditsu
AUDITSU delivers a complete accessibility audit for mobile apps aligned with the European Accessibility Act (EAA), providing a clear action plan in minutes. Its automated risk detection engine evaluates WCAG 2.1 AA compliance and EN 301 549 validation, quantifies legal exposure, and presents results through an intuitive dashboard showing your Accessibility Score and Compliance Coverage. AUDITSU highlights critical and noncritical issues by business impact, so you know exactly what to fix first without being overwhelmed by technical jargon. Continuous monitoring ensures you stay compliant as your app evolves, with real‑time alerts when changes affect accessibility. With a compliance guarantee, your first audit is free if no significant issues are found, and a lightweight interface requiring no specialized expertise, AUDITSU makes it simple to verify EAA compliance.Starting Price: Free -
14
ExcellentWebCheck
ExcellentWebCheck
To ensure that individuals with disabilities have equal access to information and services, it's essential to make websites accessible. ExcellentWebCheck is an online platform that assists organizations in identifying and resolving accessibility issues that may prevent disabled individuals from using a website. By scanning and monitoring websites for compliance with international guidelines, ExcellentWebCheck offers an easy-to-use solution for improving website accessibility.Starting Price: 25 -
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AEL Accessibility Checker
AEL Data
Curious about your website's accessibility? Discover the power of the AEL Accessibility Checker (AAC) to evaluate your web page for automated accessibility violations effortlessly. AAC is an API-based widget designed for simplicity, offering a user-friendly front-end mechanism. Just enter your URL, click "Check website," and within 30 seconds, receive a detailed summary with the number of violations and an accessibility score. Adhering to WCAG 2.1 Level A and AA standards, AAC ensures your website meets industry guidelines. The comprehensive report includes violations, affected code, severity, and actionable recommendations. Start your accessibility journey today with a free automated scan from AEL Accessibility Checker. Ensure your website is inclusive and accessible to all! -
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Statamic
Statamic
Statamic cuts out the database and creates a faster, more productive way for you to build, manage, and version control beautifully creative, bespoke websites. Instead of requiring a database you can neither touch nor version control, Statamic stores all of your content and configurations in files. Text files, Markdown files, YAML files, and so on. You can see them, touch them, edit them in any editor of your choosing, and even email them to a friend for editing. Combine these files with HTML, CSS, and our Antlers template language, your site comes alive with possibilities. You can find & replace content across your entire site, write in your favorite text or code editor, or even GitHub. Duplicate a site & instantly jumpstart your next project. Scaffold out your content model as you go. There is no need to create schemas ahead of time. You can do that later. Staying in sync with a live site is pain-free with version control.Starting Price: Free -
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BROWSEO
Browseo
BROWSEO is a web app that allows you to view any webpage without distractions caused by styles. It also highlights parts of a page that are relevant for SEO. The output focuses on pure HTML, similar to what search engines see when they visit a page. Browseo is a wonderful tool for browsing pages through the eyes of a search engine. When it comes to analyzing site structure and other factors that pertain to an entire website, Screaming Frog is the tool of choice for many. -
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eSSENTIAL Accessibility
eSSENTIAL Accessibility
From audit, to implementation, to ongoing WCAG compliance monitoring, we combine software with smart human audits to ensure your UX is compliant. Our managed service complements, extends, and often creates from scratch the internal expertise at our client partners. This pioneering approach drives organizational compliance with regulatory and statutory accessibility standards. Through the remediation of sites and apps, PDFs, and video files, we solve short-term accessibility needs as we develop longer-term strategies for complete and sustained compliance. A litigation support team including top accessibility lawyers to help you navigate demand letters, ADA citations, regulatory guidance, and future compliance. The eSSENTIAL Accessibility icon on your website conveys third-party validation for your digital accessibility commitment, helping you further communicate brand purpose alongside your ally status. -
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Siteimprove
Siteimprove
Turn your website into an asset as it was meant to be with Siteimprove. Siteimprove is an all-in-one website management software designed to help businesses solve today's most demanding website challenges. With Siteimprove, businesses get access to tools that allow them to optimize content quality and design, boost search engine traffic, comply with data privacy requirements, and track website performance--all from a single platform. -
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SEO Site Checkup
SEO Site Checkup
Run unlimited analysis on our most powerful servers. Stored reports make it easy to view progress and past work. Automatically keep track of weekly changes in more than 30 SEO variables. Get notifications if your SEO score changes. Side-by-side SEO comparisons of up to 5 competitors. See how your SEO can improve against the competition. Quickly create editable SEO reports for your clients or partner websites. SEO broken down in plain language, with clear definitions and 'how-to-fix' tutorials for each issue. Get started right away by registering below. Plans start at $24.95 per month. SEO broken down in plain language, with clear definitions and 'how-to-fix' tutorials for each issue. We provide a set of SEO tools to help you understand your website from a search engine's perspective. Our SEO reports also let you know of any problems or technical shortcomings in your website that may be hurting your search engine rankings. -
21
Hexometer
Hexact, Inc
Based on AI technology the Hexometer™ monitoring service periodically scans over 2800 data points on your website to make sure your digital assets are in pristine condition. The monitoring service continuously checks your website and informs you in case of any erosion to its health. It will also give you tips and tricks on how to improve your website’s hygiene, ultimately improving your online visibility and performance. Your website is how the world sees your business. But If that first impression is a slow or broken website, that first visit will be their last. Unlike traditional uptime monitoring platforms that just tell you when your website is down, Hexometer is like having your very own QA team, continuously monitoring your website across six core areas including availability, performance, user experience, health, SEO, and security. Get real-time notifications when issues are detected via email, SMS, Slack, Telegram & Trello.Starting Price: $8.25 per month -
22
Morningscore
Morningscore
Morningscore is a new all-in-one SEO tool for agencies, e-commerce websites and digital small and medium businesses. It is built like a game, awarding you XP as you complete Missions. As you progress you level up and so does your real traffic from Google. Some specific advantages the tool brings: Agencies: Fast automatic estimations on how important SEO is for your clients/leads. Manual Link Finder - find all new links instantly. E-commerce: Simple, visual site analysis and guidance on fixing core problems. Intuitive keyword and backlink management. Digital SMBs: Precise estimation of your potential yield on SEO combined with smart optimization suggesStarting Price: $65 per month -
23
redirection.io
redirection.io
redirection.io is a complete suite for optimizing your website traffic, user experience and SEO efficiency. It logs all the HTTP traffic of your website, displays nice dashboards to find errors and fix them in minutes. It is really fast and resilient, and can be installed on your infrastructure, without the need to target your DNS to the service. It also features a website crawler for paid plans, which allows to find and fix issues in a matter of minutes. Setup HTTP redirections The "redirection assistant" helps building simple or complex redirection rules, which won't break your legitimate traffic. It is possible to test the impacts of newly created rules before they are published and applied to any production website. Advanced SEO rules: redirection.io allows more than just redirections. The "actions" allow to override meta tags for a given page or a set of pages, add structured data, or completely manage the response headers! -
24
Keyword Tool
Key Tools
KeywordTool.io is a free online keyword research instrument that utilizes Google Autocomplete to generate hundreds of relevant long-tail keywords for any topic. By selecting a specific Google domain and language, users can discover new keyword ideas tailored to their target audience. The tool is particularly beneficial for business owners, online marketers, and content creators aiming to increase website traffic and engagement by aligning content with actual user search queries. Unlike some other tools, Keyword Tool does not require users to create an account, making it accessible and user-friendly. Additionally, it offers a reliable performance, operating 99.99% of the time.Starting Price: $89 per month -
25
WebCEO
WebCEO
WebCEO is a next-gen Internet Marketing platform that provides you with 24 powerful tools for keyword research, rank tracking, domain analysis, SEO audits, internal link analysis and backlink tracking, social media management, paid search management, competitor research, and more. The Rank Tracking tool shows local and mobile results for keywords and browsers in any language. The Keyword Research tool provides suggestions, competitive intelligence, and Google Search Console integration (keywords can be entered in any language). The lead generation widget enables agency websites to offer visitors free SEO audit reports which include the statistics for the organic traffic of a website's Top 5 Competitors. The Competitor Backlink Spy shows competitor backlinks with their anchor texts. Backlinks are identified and analyzed by the Backlink tracking tool. Among other features is WebCEO's white label that gives digital agencies the freedom to customize and brand reports.Starting Price: $36.00/month -
26
WebYes
WebYes
Increase your team’s efficiency by eliminating dependencies on multiple tools. Uncover all critical issues with just a click. Manage it all from a simple, unified platform, cutting down hundreds of hours of repetitive work. High-performing websites make clients happy, boost engagement, and build trust in your agency’s expertise. Strong accessibility ensures inclusivity, expands audience reach, and enhances client satisfaction for web agencies. High-quality web development builds trust, reduces issues, and elevates client confidence in agency services. Effective SEO drives visibility increases traffic, and delivers measurable results for web agency clients. Optimize your website management process with our all-in-one audit and monitoring tool for improved efficiency. WebYes is a free audit and monitoring tool that scans your website and identifies issues. It provides a detailed report highlighting key areas of improvement after the scan.Starting Price: $59 per month -
27
Accessi.org
Accessi.org
Check your website for accessibility issues and gain a detailed report about your website accessibility issues in seconds. Run a web accessibility test to see if your website is accessible to people with disabilities. To be accessible, your site must be compliant with the Web Content Accessibility Guidelines (WCAG) 2.1- the international gold standard for making a website accessible to people with disabilities. With Accessi.org, you don’t have to be an accessibility expert to become accessible for people with disabilities. Enter your website URL to perform a website accessibility test against WCAG and discover your accessibility requirements. -
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Recite Me
Recite Me
Recite Me Accessibility Toolbar is one of the leading WCAG & ADA Compliant Toolbars. Enabling users to customize and alter your websites design to fit their specific needs. Perfect for users who experience visual, cognitive and mobility impairments, in addition to a range of other disabilities. Furthermore, Recite Me offers an Accessibility Checker, which is free of charge and can be used to efficiently measure your websites accessibility. Allowing you to detect specific on-site accessibility issues, to fix them and improve your websites accessibility. -
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Accessibility Cloud
Accessibility Cloud
Test & monitor your websites and documents against WCAG 2.1 and EN 301 549. Accessibility Cloud offers automatic and manual accessibility tests, monitoring and compliance management within the same powerful platform. Automatic testing: Discover errors, occurrences, impact to users with disabilities, whether they are violations, see potential issues, solution suggestions, get in-context learning opportunities, scan documents, highlight problems on top of your site, and so much more. Manual testing: Do manual accessibility tests with industry’s most comprehensive WCAG-EM testing suite which supports automatically assisted tests, multiple guidelines, markdown, in-context learning material, powerful import and export options and so much more. Monitoring: Invite your colleagues, define who gets an email notification for what and let Accessibility Cloud do the rest. It will monitor your site continuously and inform you the moment new accessibility problems are discovered.Starting Price: €49 per month -
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Skynet Accessibility Scanning and Monitoring
Skynet Technologies USA LLC
Skynet Accessibility Scanning and Monitoring is a comprehensive, automated service designed to help businesses, organizations, and website owners to idetify, track, and monitor digital accessibility issues. It conducts in-depth scans across websites to detect compliance gaps against recognized accessibility standards including WCAG 2.0, 2.1, 2.2, ADA, Section 508, and other global accessibility regulations. It is an ideal solution for any size of businesses, enterprises, Government entities and website owners, website ecommerce maintenance and development agencies individuals supporting clients to monitor accessibility compliance. Set up automated scans at custom intervals like weekly, monthly, or quarterly, to maintain compliance effortlessly. It delivers a detailed report including accessibility issues, severity levels, and resolution guidance, helping to track accessibility compliance effectively. It supports over 40 global languages. It is available with 10-day free trial.Starting Price: $9.99/monthl/small site -
31
Prerender
Prerender
Get higher rankings by serving crawlers a static HTML version of your Javascript website, without compromising your customers’ experience. Prerender® is a SaaS platform that makes your JavaScript website SEO-friendly. Before your customer can find your website on search engines like Google, it first has to be crawled and indexed by one of their web crawlers, such as Googlebot. They do this by reading and cataloging a stripped-down, HTML version of your website with the visual and interactive elements taken away. This normally isn’t an issue if your website is built in static HTML, and typically takes just a few days. If your website is made in a JavaScript framework, it’s a different story. While Google can crawl websites built in JavaScript, it’s much harder for them to do. It can easily take weeks before your JavaScript website can be indexed and found in the search results. Google will see all of your content and links, and get your website in front of your customers in no-time.Starting Price: $90 per month -
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Website Crawler
Website Crawler
Website Crawler is a cloud-based SEO tool that allows users to analyze up to 100 pages of any website for free in real-time. It quickly identifies on-page SEO issues such as broken links, slow page speeds, duplicate titles and meta tags, missing alt tags, and canonical link problems. The platform can also generate XML sitemaps, export data in multiple formats, and execute JavaScript-heavy page crawling. Users can examine heading tag usage, link counts, and detect thin content that might affect search rankings. Its fast and robust engine supports Android, Windows, iOS, and Linux devices. Website Crawler is ideal for website owners and SEO professionals looking to improve site performance and search engine visibility.Starting Price: $0 -
33
INK
INK Content
INK, Your Content on Google's 1st Page. Our AI-powered writing software shows you exactly what to do so that you can write incredible SEO copy in a fraction of the time. An SEO For NON-SEOs. Optimizing content has never been easier, faster, or more powerful. User Engagement. How well you write is just as important as how well you optimize. Quality content engages and performs. Never guess how much or what kind of content you should be writing to engage your audience and increase conversion. Clicking away to check word count, grammar suggestions, and article reading times are a thing of the past. INK gives you all of that and more in-app. Authenticity & Control. The INK self-editing principle allows you complete control over what changes get made and which don’t. Don’t sacrifice your unique voice or the quality of your content to rank in search. INK was created so writers no longer have to. Download the App for Mac, Linux or Windows.Starting Price: $9.99 per month -
34
Perfmatters
Perfmatters
A minimal and easy to use dashboard with one-click toggles (no admin menu clutter). You don’t have to be tech-savvy to use Perfmatters. Increases the speed of your site by reducing HTTP requests, disabling plugins, stripping out code, and optimizing your database. We are all about no bloat! Only clean, valid, and lightweight code. No JavaScript on the front-end of your site. We code and test our plugins to work with all themes and plugins. It is designed to work alongside your caching plugin. Support straight from the developers of the plugin. We have over 19 years of experience working in WordPress. We developed the Perfmatters plugin with simplicity in mind. We use all of these optimizations on our own sites and are excited to provide an easy way for you to now have them too! No messing around with code or your functions.php file. Performance optimizations shouldn’t have to be complicated and so everything can be enabled/disabled with a single click.Starting Price: $24.95 per year -
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TwicPics
TwicPics
TwicPics delivers perfectly sized media in real-time to your websites and apps to provide the best possible experience to all your end users. Your web pages load super-fast, no matter the device and the connection. Easy to set up, up, and fast to deploy, TwicPics makes image processing a breeze with its low-code responsive image solution. Your data transfers reduce by up to 94% while your images load 3x faster. Stop compromising visual quality and web performance. With TwicPics, your website is fast and beautiful, always. Perfectly sized images for any device, any connection in real-time. Images are resized, cropped & compressed in milliseconds. Reduce image size by up to 75%, with no loss of quality. Intuitive API and efficient front-end library, with a minimal footprint. Images load faster with worldwide CDN proximity. Stop managing multiple versions of the same picture anymore. With TwicPics, you just need the largest, most detailed master.Starting Price: €99 per month -
36
Local Siren
Local Siren (Local Siren - Digital Marketing Agency)
In today’s digital landscape, many small businesses struggle to gain visibility on Google and Local Search, which means potential customers can’t find them just when they’re needed the most. Our expertise lies in optimizing your business presence so that you're not only visible but also prominent in local search results. This allows you to focus on what you do best: serving your customers and growing your business. Let Local Siren help you connect with your community and ensure your services shine where it matters.Starting Price: $57 -
37
Jokr.bar
Jokr.bar
Jokr.bar helps you recapture departing visitors by displaying a perfectly timed, humorous sticky bar just as they’re about to leave, turning exits into clicks, feedback, and conversions. It works by letting you choose, or write, punchlines from a library of ready‑to‑go jokes, customize the bar’s design, call‑to‑action, and colors, then deploy the functionality with a single line of JavaScript. The bar remains dormant until exit intent is detected, at which point it interrupts autopilot browsing with a joke that earns precious attention. Behind the scenes, Jokr.bar tracks engagement metrics, click‑through rates, exit retention, and feedback collection, so you can test different punchlines, CTAs, and audience segments via UTM targeting and planned A/B tests. Its GDPR‑compliant script runs on the client side, ensuring fast load times and seamless integration with any website platform.Starting Price: $9 per month -
38
Request Metrics
Request Metrics
Request Metrics makes web performance easy with real-user monitoring and automated Lighthouse testing—helping you boost Core Web Vitals, SEO, and user experience. Track real visitors, not just lab tests, with automatic noise cancellation, actionable insights, and detailed element attribution. Our scheduled Lighthouse tests detect regressions before they hurt rankings, while real-user data keeps you informed on how your site performs in the wild. Filter by page, device, region, or vendor to uncover performance bottlenecks, and get instant alerts when something slows down. With built-in vendor tracking, you’ll know exactly which third-party scripts are hurting your load times. No complicated setup, no code changes—just fast, reliable performance monitoring designed for modern websites. Get started for free today!Starting Price: $34 per month -
39
VALUE SERP
VALUE SERP
Fast, reliable API to power your SEO apps and services. VALUE SERP is the world's best value SERP API. Need lots of searches each month? Commit to a minimum monthly spend and get huge discounts down to $0.15 per 1k searches. No manual rules or web scrapers are required. VALUE SERP makes getting SERP data fast, reliable, and maintenance-free. A Search is any successful call to our search API. Only successful Searches are counted. There is no charge for calls to our other APIs. VALUE SERP is a real-time API. No queues, no waiting. You can also use batches to enqueue up to 15,000 searches and run them on a schedule. Our free trial gives you 100 searches to use to evaluate VALUE SERP. No credit card is required. When you're ready you may wish to consider one of our paid plans. Upgrade, downgrade or cancel your plan at any time. VALUE SERP executes search requests in real-time returning clean, structured JSON, HTML or CSV results.Starting Price: $1.50 per 1,000 requests -
40
Uburubot
Uburubot
Unlock a comprehensive suite of text tools with Uburubot. Now, you can effortlessly check for plagiarism, rewrite articles, run spell checks, count words, and even change text case. Our advanced DesignStudio offers over 1000 premade templates and powerful designing tools to create stunning logos, posters, invitations, flyers, and resumes. Need to create a favicon, compress images, or resize pictures? Our all-in-one image editing essentials have got you covered. For webmasters and SEO professionals, Uburubot provides free, powerful, and efficient keyword tools. Conduct thorough keyword research and analysis to boost your website's visibility. Gain a comprehensive inside view of your link profile with our set of backlink analysis tools. And if you're looking to drive more traffic and enhance your website's performance, our website management tools and in-depth web analysis are your go-to solutions.Starting Price: $19 -
41
SmallSEOTools
Content Arcade
A complete set of text tools is now at your fingertips. Check plagiarism, rewrite an article, run a spell checker, count words or change text case. Craft awe-inspiring logos, posters, invitations, flyers, and resume with 1000+ premade templates offered with advanced designing tools on our DesignStudio. Create a favicon, compress an image or resize a picture with a single click. All essentials for image editing are available in one place. For webmasters and SEO professionals, free, powerful and efficient keyword tools that provide you with thorough keyword research and analysis. A set of backlink analysis tool to give you a comprehensive inside view of your link profile. If you are struggling to get more traffic and enhance your website performance, then use these website management tools and in-depth web analysis. A list of free tools in one place to measure, monitor, and keep track of your website’s performance. -
42
Sitebulb
Sitebulb
It analyses data from an SEO perspective, guiding you through the process of delivering actionable website audits to your clients. At Sitebulb, we try to do the right thing by supporting the people, initiatives and causes that matter to us. One of those causes the global climate crisis. Every month we invest in projects to offset the carbon footprint of the Sitebulb team, and the energy used by our users' computers when running SEO audits. We also plant trees for every person that takes a free Sitebulb trial or subscribes to our newsletter. Crawl any website, any time, with state of the art crawling technology and JavaScript rendering. Focus on the most important issues with 300+ SEO issues and opportunities automatically checked and prioritized. Give recommendations with confidence with in-depth explanations for every issue in clear, client-friendly language.Starting Price: $35.00/month/user -
43
AChecker
AChecker
AChecker is used to evaluate HTML content for accessibility problems by entering the location of a web page, uploading an html file, or by pasting the complete HTML source code from a Web page. AChecker produces a report of all accessibility problems for your selected guidelines. Known problems: These are problems that have been identified with certainty as accessibility barriers. You must modify your page to fix these problems; Likely problems:These are problems that have been identified as probable barriers, but require a human to make a decision. You will likely need to modify your page to fix these problems; Potential problems: These are problems that AChecker cannot identify, that require a human decision. You may have to modify your page for these problems, but in many cases you will just need to confirm that the problem described is not present. -
44
HTMeLd
Gammadyne Corporation
HTMeLd accelerates your website by eliminating references to external files. It scans your HTML pages to determine what images, style sheets, and scripts that each page depends on. Then it loads those resources and embeds them directly into the page. When a visitor downloads the page, their browser will not need to make additional downloads, the page will display almost instantly. This also improves your Google "Page Experience" score, and therefore your Google rank. There is no easier way to gain competitive advantage in Google search results. We recommend installing the free trial, and performing a before and after test using Google's PageSpeed Insights. Look past the "Discover what your real users are experiencing" section as this is data accumulated for the last month from Chrome users, and will not improve instantly. In the "Diagnose performance issues" section, you should see a large improvement with all speed metrics.Starting Price: $30/month/user -
45
CodeLobster IDE
CodeLobster Software
When you start developing with PHP, you face the problem of deciding which IDE to choose. Most companies sell their IDE's for high prices ($100-$500). We, on the other hand, offer a multifunctional portable IDE absolutely FREE with all these standard features: PHP/HTML/CSS/JavaScript highlighting; advanced PHP/HTML/CSS/JavaScript autocomplete; a powerful PHP debugger; context and dynamic Help; a code validator; a SQL manager and much more. CodeLobster IDE streamlines and simplifies the PHP development process. You don't need to keep in mind the names of functions, arguments, tags or their attributes we've implemented all these for you with autocomplete features for PHP, HTML, JavaScript and even CSS. And you can always get necessary help information by pressing F1 or using the special Help control. An internal free PHP Debugger allows you to validate your code locally. -
46
Marketing Miner
Marketing Miner
Marketing Miner is an SEO tool for all data-driven marketers. Gain valuable insights with over 40 features to skyrocket your website rankings. User-friendly interface and bulk data analysis features to save your time and effort. Collect valuable data insights and analyze up to 100,000 keywords or URLs in a single click to improve your SEO strategy. Popular features: - Keyword Research - SEO Audit - Rank Tracking - Competitor Analysis - Brand Monitoring - Link Building - Bulk Data Analysis - APIStarting Price: $13.00/month -
47
Schema App
Hunch Manifest
Schema App combines advanced technology with expert services. Achieve your organic search goals with a structured data solution, customized to showcase your unique value. Schema App’s tools scale to any website’s needs and showcase your unique content in search through rich results. The Schema App Highlighter deploys structured data at scale in minutes, while the Schema App Editor can handle unique pages with customized content or design. Our expert technology can manage any CMS, any technology, and any website – effectively and efficiently. Does your website have unique pages with customized content or design? The Schema App Editor can mark up web pages one-by-one, without writing any code. It contains the entire schema.org vocabulary and highlights the schema properties that are required and recommended by Google to be eligible for rich results. -
48
ShortPixel
ShortPixel
A faster loading page means a more pleasant user experience, better search ranking and as a result, more page views. ShortPixel uses advanced compression technology that reduces image size without affecting the quality, thus making your pages load faster.Starting Price: $9.99 per month -
49
RebelMouse
RebelMouse
RebelMouse is the always-modern SaaS CMS that helps marketers and publishers grow organic traffic by breaking from the conventional approach of legacy web technology. Writers, editors and designers need their content to rank across channels and social platforms. Businesses need traffic and content creators need a simple experience. Products like SquareSpace offer ease of use, and WordPress offers flexibility, but RebelMouse offers both, with better performance, and more traffic. Experienced WordPress and Drupal developers are able to create high-performing sites on RebelMouse with far less effort to build and to manage. RebelMouse is the only enterprise-ready SaaS platform powerful enough for a media company, but also easy enough to use out of the box for any marketing team that just wants to start generating more traffic. We are also a majority-female diverse and inclusive organization. -
50
evisio
evisio
evisio gives SEO teams a central hub for auditing, analyzing, organizing, and executing tasks so that more gets done in less time without anything falling through the cracks. As a client management platform, it crawls your client’s website, uses found crawl issues to automatically create tasks, and brings your team together to tackle projects. Simply log in to your evisio dashboard, select an SEO project, and pick up on a task where you left off. Experience better communication with everyone who has a hand in your SEO, from copywriters to developers to consultants, saving you time and making sure your strategic plan actually gets executed. Spend more time on operations. Evisio helps you save time by providing recommendations and documentation for resolving SEO related issues. Evisio is always working for you behind the scenes, regularly scanning your site and alerting you of any SEO issues or opportunities that will keep you ahead of the curve and the competition.Starting Price: $79 per month