WHOIS Lookup / DNS

DNS Lookup: Check Domain Records

Look up A, AAAA, CNAME, MX, NS and TXT records, with clear explanations and no account required.

Domain and email check

Check DNS and email settings individually, with evidence and a next step.

DNS checks via Cloudflare, not a security certificate or proof of deliverability. Recursive SPF evaluation, inherited DMARC policies and DKIM signatures are not checked.

openai.com · A

DNS records found.

Checked at: Oct 19, 2026, 8:01 PM UTC · Cloudflare 1.1.1.1

Domain or hostnameRecord typeValueTTL (s)
openai.comA104.18.33.452
openai.comA172.64.154.2112
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This is a snapshot from Cloudflare’s recursive resolver, not a worldwide propagation test. Your hostname is sent to this resolver; we do not connect to the queried website. Missing DNS records do not prove that a domain is unregistered.

Domain and Email Check

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A

IPv4 address for this hostname. Compare it with the address supplied by your hosting provider.

AAAA

IPv6 address for this hostname. Check it separately from IPv4 if some visitors cannot connect.

CNAME

An alias to another hostname. It is not an HTTP redirect and does not specify a web page.

MX

Mail servers and their priorities. Lower numbers are preferred; these records do not prove that a mailbox exists.

NS

Nameservers published for this name. Registration data and DNS delegation may need separate checks.

TXT

Text records used for verification and policies such as SPF. A record’s presence alone does not validate its configuration.

TTL is the remaining time, in seconds, that a resolver may cache a record. Results may differ between resolvers. This page briefly caches responses; the timestamp shows when they were fetched.

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