WebPageTest

An online website performance tester with waterfall charts, filmstrips, multiple locations and throttled connections.

FreemiumProprietaryWeb

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About WebPageTest

WebPageTest is a web performance testing tool used by developers who want detail beyond a single score. It loads a page from a chosen test location and produces a full request waterfall and a filmstrip showing how the page renders over time.

Tests can run from multiple locations and over throttled connections, so you can see how a page behaves on slower networks. Basic testing is free, with paid options for heavier use.

Strengths

  • Detailed request waterfall and filmstrip view
  • Tests from multiple locations
  • Throttled connection profiles for slow-network testing

Limitations

  • Output is detailed and assumes some performance knowledge
  • Some features sit behind paid plans

Details

Pricing
FreemiumBasic tests are free, with paid options available.
License
Proprietary
Platforms
Web
How it runs
Web application
Works offline
No
Best suited for
Developers digging into exactly how and why a page loads slowly
Categories
Website testing
Last verified
Added
Provenance
Selected from the TechWalrus Resource Hub (Website Checkers & Audit Tools); facts checked against the developer's own pages, 2 sources on file.

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