Domain to IP
Find the IPv4 and IPv6 addresses behind a domain, the reverse DNS name of each and a hint at the hosting provider.
Resolve a domain to its IP addresses
A and AAAA records from the public DNS, with the reverse name of each address.
What the Domain to IP does
Domain to IP resolves a domain name to the addresses behind it: every IPv4 (A) and IPv6 (AAAA) record, their TTLs, and when the name is an alias, the CNAME it points through. For each address it then runs a reverse lookup and shows the PTR name the network owner published, which is often the quickest way to tell where a site is hosted.
The hosting hint comes from that PTR name. Addresses on AWS end in amazonaws.com, Google Cloud uses googleusercontent.com, Hetzner uses your-server.de, and so on through a table of about seventy common providers and CDNs. When a site sits behind Cloudflare or another CDN, the hint names the CDN, because that is genuinely what the domain points at; the origin server is hidden on purpose.
Use it to confirm a DNS change landed, to check whether a client's site shares an address with many others, or to find out which provider to contact about a host before you reach for the WHOIS Lookup.
Step by step
- 01Enter the domain. A full URL also works; the tool reads the host name from it.
- 02Press Resolve. The A and AAAA records are fetched from the public DNS.
- 03Read each address with its reverse name and the provider guessed from it.
- 04For a network owner the PTR does not reveal, run the WHOIS Lookup on the address.
Common questions
Busy sites publish more than one A record so browsers spread connections across servers, and CDNs almost always return two or more. All of them serve the same site. A CNAME pointing to a platform also tends to resolve to a changing set of addresses.
That is expected when the orange cloud proxy is on. Visitors connect to Cloudflare, which fetches pages from your origin. The origin address is not visible in public DNS, which is part of the protection the proxy offers.
PTR records are optional and set by whoever owns the IP range, not by the domain owner. Many shared hosting addresses and some cloud providers do not publish one. Mail servers should always have one, since receiving servers check it.
The domain has no AAAA record, so it is reachable over IPv4 only. That is still common. Adding IPv6 is a good idea when your host supports it, but its absence does not hurt search rankings.
Keep checking
DNS Lookup
Look up the A, AAAA, CNAME, MX, NS, TXT, SOA, SRV and CAA records of any domain with their TTLs in one query.
Free toolReverse DNS Lookup
Find the PTR host name of an IPv4 or IPv6 address and check that it resolves back to the same address.
Free toolWHOIS Lookup
Registrar, creation and expiry dates, name servers, status and DNSSEC for a domain, or the network owner of an IP.
Free toolSSL Certificate Checker
Check a site's TLS certificate: issuer, expiry and days left, SANs, chain, protocol and whether the host name matches.
Free toolWebsite Down Checker
Check from our server whether a website is up: status code, response time, redirects, server header and DNS.
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