Alternatives to KeyCDN Performance Test

A free web tool that measures DNS, connection, TLS and TTFB times for one URL from 10 locations. The listings below can replace it for an important use case. Each note says what changes if you switch.

Replacements

Listings that take over the same core job as KeyCDN Performance Test.

  • ByteCheck

    A free online checker that measures a website's Time To First Byte.

    FreeProprietaryWeb

    ByteCheck measures only Time To First Byte for a URL, without KeyCDN's breakdown of DNS, TLS and connection times across 10 locations.

  • KeyCDN Website Speed Test

    A free full-page speed test with a waterfall breakdown, run from one of 10 global locations.

    FreeProprietaryWeb

    KeyCDN Website Speed Test loads a full page with a per-asset waterfall, but runs from one chosen location per test instead of all 10.

  • Globalping

    A free service for running ping, traceroute, DNS, MTR and HTTP tests from probes worldwide.

    FreeOpen sourceWebCommand line

    Globalping is open source and runs HTTP, DNS, ping and traceroute tests from many worldwide probes, with a CLI and API, though it depends on volunteer probe availability.

  • Check-Host

    Online tool that checks a host with ping, HTTP, TCP, UDP and DNS from servers worldwide.

    FreeProprietaryWeb

    Check-Host checks HTTP, ping, TCP and DNS from many locations at once, focusing on reachability rather than KeyCDN's timing breakdown, and carries hosting ads.

Similar software

Related functionality, not a direct replacement.

  • Pingdom Tools

    A free online website speed test that reports load time, page size and request count.

    FreeProprietaryWeb

  • WebPageTest

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

    FreemiumProprietaryWeb

  • GTmetrix

    An online page speed tester with waterfall charts, Core Web Vitals, scheduled monitoring and alerts.

    FreemiumProprietaryWeb

  • httpstatus.io

    A web tool for checking HTTP status codes, response headers and redirect chains of URLs.

    FreeProprietaryWeb

  • GF.dev HTTP/2 Compatibility Check

    A free web tool that checks whether a server negotiates HTTP/2 via ALPN.

    FreeProprietaryWeb

  • Is It Down Right Now

    A web tool that checks whether a website is down for everyone or only for you.

    FreeProprietaryWeb