CDN Provider Detector
Detect common CDN providers from CNAME and nameserver DNS signatures.
Best-effort CDN/host detection from DNS: it matches the domain's CNAME target and nameservers against known CDN signatures. Apex domains that use plain A records (no CNAME) may not reveal a CDN this way — try the www. hostname. Queried live over Cloudflare DNS-over-HTTPS.
About this tool
CDN Provider Detector is a single-purpose utility on instant.tw, a free toolbox of calculators, converters, generators, and quick lookups. Everything works in your browser — nothing is uploaded, nothing is stored on a server unless explicitly noted.
Category: Developer Tools — Advanced. Browse more Developer Tools — Advanced tools.