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Request Map Generator vs WebPageTest: catalog facts
Request Map Generator	WebPageTest
Free Free to use.	Freemium Basic tests are free, with paid options available.
Web	Web
Visual map of all third-party domains a page calls Shows where bytes come from and which domains are slow	Detailed request waterfall and filmstrip view Tests from multiple locations
Tests can queue behind other pending jobs Shows a single page load rather than a whole site	Output is detailed and assumes some performance knowledge Some features sit behind paid plans
Web application	Web application
Closed source	Closed source
License not stated	License not stated
No account needed	Not stated if an account is needed
Needs internet	Needs internet
Official website Full listing and sources Checked September 23, 2026	Official website Full listing and sources Checked September 23, 2026

Catalog facts only. Anything “not stated” is unconfirmed. Check full listings for details.