Website Speed Tests

Check your page speed with multiple website speed tests, all at once. These are the leading website tests from across the web, including core web vitals. Enter a URL to test and hit Start.

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Test it

Filter by type of website test, then click a test.

Speed9

Page Speed InsightsCore Web VitalsTest it
WebPageTestCore Web VitalsTest it
SpeedVitalsCore Web VitalsTest it
TTFBTest it
Is My Page Cached?Test it
GTmetrixCore Web VitalsTest it
Yellow Lab ToolsTest it
KeyCDNTest it
DBDebugBear Free Website Speed TestTest it

SEO3

HHappySEOReportsTest it
Google Rich ResultsTest it
SVSchema.org Structured Data ValidatorTest it

Social5

Social Share PreviewTest it
Facebook DebuggerTest it
LinkedIn Post InspectorTest it
OGOpenGraph.xyzTest it
MTmetatags.ioTest it

Accessibility1

WAVE Web AccessibilityTest it

Security7

Security HeadersTest it
Qualys SSL TestTest it
HSTS PreloadingTest it
HardenizeTest it
MOMozilla/MDN HTTP ObservatoryTest it
SBGoogle Safe Browsing site statusTest it
Sucuri SiteCheckTest it

Other2

DNDNS CheckerTest it
WBWayback MachineTest it

Launch All Tests At Once

This will open a new tab or window for each of the test sites above. If only one test opens, your browser is blocking pop-ups. Allow pop-ups for chckr.co and try again.

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Not sure what your result means? Browse all test guides.

Chckr Recommends

Perfmatters is an easy-to-use WordPress plugin that instantly optimizes your website with performance best practices. Used and recommended by site speed optimization professionals.

Understand what these tests are telling you

PageSpeed Insights TestRun Google PageSpeed Insights on your URL and understand the score, the lab numbers and the field data, plus what to change first when the result is poor.
WebPageTestRun WebPageTest on your page for a request by request breakdown, filmstrip view and repeat view results that show what your visitors actually see while waiting.
SpeedVitals TestRun SpeedVitals on your URL to measure Core Web Vitals across several test locations and devices at once, with a layout shift visualiser.
TTFB TestTest Time to First Byte on your URL from multiple regions and find out whether slow pages are caused by your server, your host or your distance from visitors.
Is My Page Cached?Check whether your page is being served from cache, which caching layer answered, and what your cache headers are telling browsers and CDNs to do.
GTmetrix Speed TestRun a GTmetrix speed test on your URL and learn what the grade, the Structure score and the waterfall chart are telling you about your page.
Yellow Lab Tools TestRun Yellow Lab Tools on your URL to grade page weight, DOM complexity, JavaScript behaviour, CSS bloat and bad practices in your front end code.
KeyCDN Speed TestRun the KeyCDN speed test on your URL to see load time, page size and a request waterfall measured from test servers around the world.
DBDebugBear Speed TestRun the free DebugBear speed test on your URL for Core Web Vitals, a request waterfall, and a clear breakdown of what is delaying your largest content paint.