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Website tools / Website speed test9 tools

Best website speed test tools

Measure how fast a page loads and what slows it down. Facts come from each tool's own pages, and every score says where it comes from. How we rank

Tools
9
Researched
4
Free option
0
Only listed
5

Disclosure: agathox makes some of the tools listed here. They are labelled and scored by the same method as every other tool.

Ranked by signals we can measure or quote: website health, the facts each tool's own pages state, and community discussion. Nothing here has been hands-on tested yet, so this is not a quality test. How the signals rank works

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Want two of these head to head? Compare tools side by side.

  • 1
    No free planSignup unclearFile handling unclearHealth 5
    Details and sources
    Free tier
    No permanent free plan is listed. The pricing page offers a 15-day free trial; trial limits are not stated.
    Paid plan
    Starter $75/month (5,000 Real User sessions, 5,000 Synthetic tests/month, 3 seats). Team $150/month (10,000 sessions, 15,000 tests/month, 10 seats). Company $1,500/month paid yearly (1,000,000 sessions, 50,000 tests/month, 50 seats). A monthly/annual toggle is shown; extra usage and seats cost more.
    Signup
    Trial and plans link to a sign-up page; whether an account is required is not explicitly stated.
    Watermark
    Not applicable.
    Where files go
    Servers and primary database are in the United States. Real user monitoring data is first processed at edge locations near the visitor, then sent to the US database. Retention: account info for the account's life plus 90 days; billing records 7 years; synthetic monitoring data for the subscription's duration; real user data 3-24 months as configured by the customer.

    From the tool's own pages, checked 2026-11-01. Sources: Pricing, Privacy policy. Prices and limits change; check the tool before you rely on them.

    Full page for Calibre App

  • 2
    No free planSignup unclearFile handling unclearHealth 4.8
    Details and sources
    Free tier
    No free tier stated. A 14-day free trial with full features and no credit card is offered, including 300 free tests (about daily tests for roughly 10 pages on desktop and mobile). After the trial the account is deactivated unless upgraded.
    Paid plan
    Per month billed annually (a monthly option exists, price not read): Starter $12 (2 websites, 1,000 tests per month), Growth $39 (up to 10 websites, 5,000 tests), Pro $79 (up to 25 websites, 10,000 tests). Add-ons: extra 5,000 synthetic tests $50 per month, extra 100,000 field tests $10 per month.
    Signup
    Not stated for an account, but the trial and plans are described as account-based.
    Watermark
    Not applicable.
    Where files go
    The privacy page says IP address and User-Agent of end users are discarded at the edge for field testing. Support, email, billing and session-replay vendors are listed. No retention periods are stated. Paid plans keep test data 6, 12 or 24 months.

    From the tool's own pages, checked 2026-11-01. Sources: Pricing, Privacy policy. Prices and limits change; check the tool before you rely on them.

    Full page for PageVitals

  • 3
    UnclearSignup unclearFile handling unclearHealth 4.8
    Details and sources
    Free tier
    Not stated. The tool page describes a full page speed test but does not say it is free or give limits. It mentions a free 14-day trial for KeyCDN, not clearly for the tool.
    Paid plan
    KeyCDN (the CDN, not the speed test) is pay-as-you-go: $0.04 per GB first 10 TB in North America and Europe, higher in other regions; first 3 zones free, $1 per extra zone per month; $4 per month minimum usage and $49 minimum payment.
    Signup
    Not stated.
    Watermark
    Not applicable.
    Where files go
    Not stated for the speed test. The privacy policy covers account and site visitor data, says it does not describe tool data handling, and keeps billing data 10 years.

    From the tool's own pages, checked 2026-11-01. Sources: Speed test tool page, KeyCDN pricing, KeyCDN privacy policy. Prices and limits change; check the tool before you rely on them.

    Full page for KeyCDN Speed Test

  • -
    No free planSignup unclearFile handling unclear—
    Details and sources
    Free tier
    GTmetrix offers a free testing option that does not require a credit card. The page says: “Get Started for FREE (No credit card required).”
    Paid plan
    GTmetrix offers paid plans, and there is a 40% discount available for Black Friday. The page says: “Get 40% OFF Black Friday is here! Get 40% off all GTmetrix plans Get the Deal.”
    Signup
    GTmetrix allows users to start testing for free without a credit card. The page says: “Get Started for FREE (No credit card required).”
    Watermark
    Not stated.
    Where files go
    Not stated.

    From the tool's own pages, checked 2026-11-08. Sources: Home. Prices and limits change; check the tool before you rely on them.

    Read automatically by a program, not by a person. Each fact quotes the sentence it came from, and a fact is shown only if that sentence is on the page. Where a page did not say, it reads “Not stated.”

    Full page for GTmetrix

Answers come from each tool's own pages (“Unclear” means they do not say). Tick “Compare” on two to four tools to read them side by side.

Also listed (5, not yet tested)

Each of these answered when we visited its site. We have not tested them or recorded facts, so they are in alphabetical order, not ranked.

  • DebugBear

    Monitor website performance and Google Core Web Vitals with synthetic tests and real user monitoring (RUM). Get detailed page speed insights to make your website faster.

    Open
  • Google PageSpeed Insights

    Google PageSpeed Insights is listed for: website speed test.

    Open
  • Pingdom Website Speed Test

    Use this free Website Speed Test to analyze the load speed of your websites, and learn how to make them faster.

    Open
  • 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.

    Open
  • WebPageTest

    WebPageTest is listed for: website speed test.

    Open

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