• Network & DNS
Look up CNAME records for any domain and trace the full chain of aliases.
Domain or URL only — e.g. example.com or https://example.com/page → checks example.com
• About this tool
Look up CNAME records for any domain and follow the complete alias chain to the final A record. Identify CDN endpoints, third-party services, and misconfigured DNS.
• FAQ
A Canonical Name (CNAME) record maps a domain alias to another domain name. For example, www.example.com may CNAME to example.com or a CDN endpoint.
A CNAME chain occurs when a CNAME points to another CNAME. Chains are valid but add DNS lookup latency.
A dangling CNAME points to a domain that no longer exists, creating a subdomain takeover vulnerability where an attacker can claim the target domain.
No. RFC 1912 prohibits CNAME records on a zone apex (root domain). Use ALIAS or ANAME records instead, depending on your DNS provider.
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• automated security
PandaONE runs autonomous agents against your app, validates findings with proof, and opens fixes as pull requests.
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