Inspect any website’s
delivery stack in one search.

Enter a domain and see which CDN is serving it, who runs its DNS, whether TLS and caching are set up right, and what firewall is protecting it — the same detection data behind 200+ assessments a year. Free, no signup, shareable reports.

One search runs the complete inspection — CDN, DNS, headers, TLS, caching, WAF & bot management. Every result on one page. 5 free inspections per hour.

Running the complete inspection…
Want a human read on all of this — performance, resilience and what you should be paying? Get a free infrastructure assessment →

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Free tools

The toolkit.

All six are live now, free and passive, powered by the same benchmark data behind our assessments. Want a human read on what they surface? A free assessment goes deeper.

CDN Finder Beta Flagship

Enter any domain and see which CDN, or stack of CDNs, is serving it, detected from DNS, response headers and certificate fingerprints, with a shareable report. The tool CDNFinder.com will point to.

Detect a CDN free →

DNS Finder Beta

Full DNS lookup and audit: every record, the authoritative provider behind the domain, propagation state, and the misconfigurations that slow resolution down.

Run a free lookup →

WAF Detector Beta

Detect which WAF or security edge is protecting a site, what it blocks, what it lets through, and what that choice implies for performance.

Open the tool page →

Bot Detection Beta

Identify the bot-management vendor — DataDome, HUMAN, Kasada, Cloudflare Bot Management, Imperva — from headers, cookies and challenge behaviour.

Open the tool page →

HTTP Header Analyzer Beta

Paste a URL and get every response header decoded: caching directives, security headers, compression, and what to fix first.

Open the tool page →

TLS & Cache Checker Beta

Certificate chain, protocol versions and cache behavior in one pass, including readiness for the 2026–2029 shortening certificate lifetimes.

Open the tool page →