Free individual check · without registration
Which IP is behind a domain? Enter the website or a full URL. The domain IP check shows IPv4, IPv6 and existing reverse DNS records.
Tested host: —
| IP address | Version | DNA source | Reverse DNS / PTR |
|---|
Show your company, your product or your idea. Choose your place and present your website in the gallery of this tool.
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example.com. For a URL, the host is checked; a path like /kontakt It does not have its own DNS record.The tool determines the publicly resolvable IP of the website. It neither shows your own connection IP nor guarantees the origin server behind a CDN.
Check A and AAAA records with the DNS provider. Also query www separately. A still existing old AAAA record can still lead IPv6 visitors to the previous server. The TTL determines how long DNS responses can be cached.
Load distribution and CDNs can provide multiple addresses. Compare them to the configuration of your hosting or CDN provider. An infrastructure IP is not evidence of a wrong server.
Check spelling and subdomain. A host may exist without A/AAAA, or the DNS query may fail temporarily. Check the DNS settings before changing the web server.
A successful DNS resolution does not yet check an HTTP response or a certificate. With the HTTPS Checker then check encryption and forwarding; Status code Checker Shows answers of individual URLs.
Replace example.com with your domain. The local query may differ from our result because of a different DNS resolver.
nslookup -type=A example.com
nslookup -type=AAAA example.comdig +short A example.com
dig +short AAAA example.comEnter the domain at the top. The check queries public A and AAAA DNS records and shows the found IPv4 and IPv6 addresses. Alternatively, you can use local nslookup or dig.
Not mandatory. They are different hosts with their own DNS records. Check both spellings individually, especially after a hosting move.
This check shows the publicly resolvable addresses. In the case of an upstream CDN, this can be the CDN-IP. The hidden origin IP cannot be reliably derived from this.
No PTR name was identified for the IP. A website can still work. A PTR name also does not have to match the entered domain.
Not necessarily. Website, incoming mail server and outgoing mail server can use different IPs. For mail delivery problems, the actual shipping IP is relevant; for example, it is in an error message or in the mail header.
The input is transmitted to the Seitenreport server for the DNS query. The tool endpoint shall record technical information relating to the test run. Further information can be found in the Data protection declaration.
For the next check: Save this free tool in the browser as a bookmark (Ctrl+D or ➳D).