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About

DebugBear is a web performance monitoring tools that helps companies keep their website fast and pass Google's Core Web Vitals assessment. Find out how to optimize your website and get alerted when there's a problem. Run scheduled synthetic tests, monitor data from Google's Chrome User Experience Report (CrUX), and collect real user analytics directly on your website. Track Google Lighthouse scores over time and benchmark against your competition. Get custom performance recommendations with detailed analysis, and quickly try out performance optimizations with page speed experiments – without deploying any code!

About

PerfDelta is a web-based website speed testing and monitoring service for SEO specialists, agencies, and in-house web teams. Its free test scans up to three pages on mobile and desktop, combining real-user Core Web Vitals from the Chrome UX Report with Lighthouse lab measurements. Reports compare a site with up to two competitor domains and a benchmark of previously tested sites, show page-weight breakdowns and request timelines, identify site technologies, and estimate savings in prioritized recommendations naming affected files. Paid plans add scheduled monitoring, performance budgets, email alerts, report history, and PDF exports; Agency and Scale plans also provide CSV export, public dashboards, and a REST API. MCP access lets compatible AI agents request tests and retrieve results. Reports can be shared with clients for performance audits and ongoing site work.

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Platforms Supported

Windows Not Supported
Mac Not Supported
Linux Not Supported
Cloud Supported
On-Premises Not Supported
iPhone Not Supported
iPad Not Supported
Android Not Supported
Chromebook Not Supported

Audience

Online businesses, development and marketing teams

Audience

SEO specialists, agencies, and in-house web teams.

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

Support

Phone Support Not Supported
24/7 Live Support Not Supported
Online Supported

API

Offers API Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

$125/mo
Free Version Not Supported
Free Trial Supported

Pricing

€23/month
A free plan is available. The Solo plan costs €23/month net with monthly billing, or €230/year net with annual billing. Higher plans add scheduled monitoring, alerts, report history, exports, and API access.
Free Version Supported
Free Trial Not Supported

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Reviews/Ratings

Overall 0.0 / 5
ease 0.0 / 5
features 0.0 / 5
design 0.0 / 5
support 0.0 / 5

This software hasn't been reviewed yet. Be the first to provide a review:

Review this Software

Training

Documentation Supported
Webinars Not Supported
Live Online Supported
In Person Not Supported

Training

Documentation Supported
Webinars Not Supported
Live Online Not Supported
In Person Not Supported

Company Information

DebugBear
Founded: 2018
United Kingdom
www.debugbear.com

Company Information

PerfDelta
Founded: 2026
Germany
perfdelta.com

Alternatives

Alternatives

Categories

Categories

Speed Test Supported
Website Monitoring Supported

Website Monitoring Features

Availability Testing Not Supported
Event Logs Not Supported
Event-Based Notifications Not Supported
FTP Monitoring Not Supported
Mail Server Monitoring Not Supported
Maintenance Scheduling Not Supported
Performance Metrics Supported
Real Time Monitoring Supported
Transaction Monitoring Supported
Uptime Reporting Not Supported

Website Optimization Tools Features

Competitor Analysis Supported
Content Management Not Supported
Keyword Research Tools Not Supported
Link Management Not Supported
Performance Metrics Supported
Problem Area Alerts Supported

Website Monitoring Features

Availability Testing Not Supported
Event Logs Not Supported
Event-Based Notifications Not Supported
FTP Monitoring Not Supported
Mail Server Monitoring Not Supported
Maintenance Scheduling Not Supported
Performance Metrics Supported
Real Time Monitoring Not Supported
Transaction Monitoring Not Supported
Uptime Reporting Not Supported

Integrations

GitHub Supported
Google Chrome Supported
Lighthouse Supported
Model Context Protocol (MCP) Not Supported
Netlify Supported
Slack Supported
Trello Supported
Vercel Supported

Integrations

GitHub Not Supported
Google Chrome Not Supported
Lighthouse Not Supported
Model Context Protocol (MCP) Supported
Netlify Not Supported
Slack Not Supported
Trello Not Supported
Vercel Not Supported
Claim DebugBear and update features and information
Claim DebugBear and update features and information
Claim PerfDelta and update features and information
Claim PerfDelta and update features and information