FAST.com

FAST.com

Netflix
+
+

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About

FAST.com speed test gives you an estimate of your current Internet speed. You will generally be able to get this speed from leading Internet services, which use globally distributed servers. Download speed is most relevant for people who are consuming content on the Internet, and we want FAST.com to be a very simple and fast speed test. When you click the “Show more info” button, you can see your upload speed and connection latency (ping). FAST.com provides two different latency measurements for your Internet connection. “unloaded” and “loaded” with traffic. The difference between these two measurements is also called “bufferbloat”. To calculate your Internet speed, FAST.com performs a series of downloads from and uploads to Netflix servers and calculates the maximum speed your Internet connection can provide. FAST.com will test Internet speed globally on any device (phone, laptop, or smart TV with browser).

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 Supported
iPad Supported
Android 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

Users wanting a solution to test their internet connection speed

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 Not Supported

API

Offers API Supported

Screenshots and Videos

Screenshots and Videos

Pricing

No information available.
Free Version Supported
Free Trial Not 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 4.0 / 5
ease 5.0 / 5
features 5.0 / 5
design 4.0 / 5
support 4.0 / 5

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:

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Pros & Cons from Real Users

Pros

  • It is an essential platform to be able to have full access to the speed that is handled within your business Network, thanks to this platform you will be able to know the real speed that your Network is supporting on your computer or your mobile device. This platform is quite good since that allows obtaining a study of the network speed in a few seconds, without having a high consumption in the device and without presenting confusion in the users, this platform offers an almost immediate result, since it only takes five seconds to carry out a study of the speed of the network. Another positive aspect of this platform is the ease of use, since you only have to open it in your browser and the platform will automatically carry out a study of the Internet speed that takes a few seconds, this study is quite precise and offers exact details about the actual download speed of your network. In general, the design of this platform is completely easy to use, in addition, you can perform all the Network analyzes that it says without any type of limit, this platform is completely free, it allows you to perform a Network Speed Test as many times as necessary , without any limit.

Cons

  • The main negative aspect of this platform is that there is no application downloaded for mobile devices, this means that any user who is using a mobile device must use their browser to access this website and perform the speed test of their Network, it is necessary to create an application to download for mobile devices to improve access to this platform from the mobile phone. Another negative aspect of this platform is that it offers us details about the quality or the test of the network, since it allows us to visualize the upload speed and it does not allow us to collect details about the number of packets lost in this network nor does it offer details about the latency in MS.

Training

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

Training

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

Company Information

Netflix
United States
fast.com

Company Information

PerfDelta
Founded: 2026
Berlin, Germany
perfdelta.com

Alternatives

Alternatives

Speed Test

Speed Test

BluSky

Categories

Speed Test Supported

Categories

Speed Test Supported

PageSpeed Insights tests one URL and shows one score. PerfDelta tests three pages per run, puts the results next to up to two competitors and a benchmark of every domain tested so far, and keeps the history of every measurement. The free test needs no account.

Website Monitoring Supported

Core Web Vitals monitoring with competitor benchmarks and alerts. Paid plans monitor 25 to 500 URLs daily or weekly, every 6 hours from Agency, with daily CrUX field data, 3 to 10 tracked competitors, performance budgets per project and URL, email alerts when a score drops by 10 points or more and a weekly report.

Website Monitoring Features

Availability Testing Not Supported
Event Logs Not Supported
Event-Based Notifications 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

ChatGPT Not Supported
Claude Not Supported
Cursor Not Supported
Google PageSpeed Insights Not Supported
Lighthouse Not Supported
Model Context Protocol (MCP) Not Supported
TunesBank Supported
Zapier Not Supported

Integrations

ChatGPT Supported
Claude Supported
Cursor Supported
Google PageSpeed Insights Supported
Lighthouse Supported
Model Context Protocol (MCP) Supported
TunesBank Not Supported
Zapier Supported
Claim FAST.com and update features and information
Claim FAST.com and update features and information
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Claim PerfDelta and update features and information