Website tools / Sitespeed.io
Sitespeed.io
Sitespeed.io is an open source tool that helps you analyse and optimise your website speed and performance, based on performance best practices.
Where it stands
4.0 / 5
Signals score
Not a hands-on test
Based on 1 of 3 signals
- Website health4.6 / 5 · weight 50%
Measured from the tool's public website
Built only from what we can measure or quote without using the tool. How ranking works
Rank by signals
We have not run our own hands-on test on Sitespeed.io yet. How tests work
Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.
Measured signals
4.6 / 5 · measured 2026-11-08Read automatically from Sitespeed.io's public website: how reliable, secure, private and open the site is. This is not a test of how well the tool does its job. How this is measured
- Reliability5 / 5The page answered and finished downloading in 55 ms.
- Security5 / 54 of 5 protective headers set (strict-transport-security, content-security-policy, x-content-type-options, referrer-policy).
- Privacy5 / 5No third-party tracking services found on the page.
- Transparency3 / 5Links a privacy policy; no pricing page linked.
Community feedback
We found no public discussion of this tool to read.
A score needs at least 12 different commenters across 2 threads.
Listed, not yet tested
This tool answered when we visited its site on 2026-11-10. The description above is the tool's own. We have not tested it or recorded facts about its limits, pricing or privacy, so it has no score. Are you the maker? Claim this listing to correct details and request a test.
Official pages found on its site (we have not read them): Privacy
Are you the maker of Sitespeed.io? Link to this page
Copy this into your site. The link goes to this page, and it does not change any score.
<a href="https://agathox.com/tools/sitespeed-io">Sitespeed.io on agathox: compared and tested</a>
Tasks and scores
- Website speed testNot tested yet
Similar tools
Top signals in Website speed test.
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