KeyCDN

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Introduction

KeyCDN Tools is a collection of free web, network and security tools from the CDN provider KeyCDN, and its Performance Test checks a single URL from multiple locations at once. The tool page says it analyses the time to first byte (TTFB), DNS lookup, TLS handshake and connection times for any URL.

Because it tests one asset from many points of presence simultaneously, the Performance Test is useful for spotting regional latency problems, slow DNS, TLS misconfiguration or a CDN that is not caching in some regions. It is not a full page-load test: it does not render the page or measure Core Web Vitals.

The same site offers related free tools: a Website Speed Test (a page-level waterfall test), HTTP Header Checker, HTTP/2 Test, Brotli Test, and network tools such as Ping, Traceroute, DNS Checker, IP Location Finder and a BGP looking glass, plus certificate tools.

In the quality loop it fits the performance stage as a quick diagnostic for network and CDN behaviour.

Features

1. Multi-location performance test: TTFB, DNS, TLS and connection times from many locations.
2. HTTP status per location: See response codes from each test point.
3. Website Speed Test: Page-level waterfall test.
4. HTTP and protocol checks: Header, HTTP/2 and Brotli tests.
5. Network tools: Ping, traceroute, DNS and BGP tools.
6. Certificate tools: Certificate checker and chain composer.

Pros

1. Free: No account needed.
2. Global view: Quickly compare latency across regions.
3. Many utilities in one place: Useful toolbox for CDN and network debugging.

Cons

1. Single asset only: Does not measure full page rendering or Core Web Vitals.
2. No scheduling: One-off tests, no monitoring.

Usage and Links (Example)

Open tools.keycdn.com/performance, enter a URL (for example your HTML document or a key static asset), and run the test. Compare DNS, connect, TLS and TTFB per location, and check cache headers with the HTTP Header Checker if some regions are slow. Use a full page-load tool such as WebPageTest or PageSpeed Insights for rendering metrics.

Useful links:

• KeyCDN Performance Test

Pricing

Free to use. KeyCDN’s CDN service is a separate paid product.

Recommended for?

• Developers checking CDN and TLS performance across regions
• Ops teams debugging regional latency
• Anyone needing quick network diagnostics

Conclusion

KeyCDN’s Performance Test is a handy free tool for measuring TTFB and connection timings from many locations. Use it alongside full page-load tools for a complete picture.