SynTestC5i
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Related Products
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About
SpeedOf.Me is a free, browser-based internet speed test that measures download, upload, latency and jitter on any device: desktop, mobile, tablet, game console, smart TV or car. No app, no plugin, no download. Launched in 2011 as the first HTML5 speed test, it runs a single stream from your browser to neutral CDN edge servers in 130+ locations, so the result reflects real browsing performance instead of a lab-style peak. We call it Real-World Speed.
Developers can embed the same engine with the SpeedOf.Me API: a few lines of JavaScript, white-label, with callbacks for every metric and an analytics dashboard for usage, geography and devices. Ready-to-run examples cover React, Vue, Angular, Electron, Flutter, iOS, Android and more. An MCP server and CLI (@speedofme/mcp) let AI agents and CI pipelines run real speed tests. The Internet Speed Atlas publishes real-world averages for 119 countries.
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About
SynTest is a cloud-based automated “Test and Learn” platform that helps organizations design, launch, and analyze in-market tests for marketing, advertising, and broader business strategies with speed, scale, and rigor. It enables users to build and execute experiments such as geo-tests for advertising effectiveness, new product tests, in-store pricing and promotion tests, and creative audience evaluations using guided, no-code workflows that go from data to decisions quickly. It applies the Nobel-recognized Synthetic Control methodology, which is designed to cope with noisy real-world test environments where ideal control groups are hard to find, and traditional methods are limited, allowing more accurate measurement of impact and performance even with imperfect data. SynTest’s automated approach accelerates test setup and execution, integrates real-world signals into experiment design, and delivers actionable insights to inform marketing and business decisions.
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Platforms Supported
Windows
Mac
Linux
Cloud
On-Premises
iPhone
iPad
Android
Chromebook
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Audience
Developers and product teams embedding speed tests, ISPs and network operators benchmarking real-world performance, and anyone testing their own home or mobile connection
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Audience
Marketing, analytics, and business strategy teams needing a tool to run reliable in-market tests to measure campaign and business initiative effectiveness quickly and at scale
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Support
Phone Support
24/7 Live Support
Online
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Support
Phone Support
24/7 Live Support
Online
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API
Offers API
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API
Offers API
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Screenshots and Videos |
Screenshots and Videos |
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Pricing
Free
The speed test on our website is free for everyone: no account, no app, no limits.
The Speed Test API is a paid product with a free 30-day trial and no credit card required. Current plans, included test volumes and per-test rates are listed under Plans and Pricing on the Speed Test API page of our website (/api). Every paid plan includes technical support, the analytics dashboard, and the MCP server, CLI and SDK at no extra cost. Cancel any time.
Free Version
Free Trial
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Pricing
No information available.
Free Version
Free Trial
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Reviews/
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Reviews/
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Pros & Cons from Real UsersPros
Cons
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Training
Documentation
Webinars
Live Online
In Person
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Training
Documentation
Webinars
Live Online
In Person
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Company InformationSpeedOf.Me
Founded: 2011
United States
speedof.me/
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Company InformationC5i
Founded: 2001
United States
www.c5i.ai/syntest/
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Categories |
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Integrations
Claude
Claude Code
Cursor
Visual Studio Code
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