Hosting check
Who hosts openai.com?
openai.com is behind Cloudflare, which hides the origin host. DNS by Azure DNS. Email by Google Workspace.
Checked 14 Oct 2026 at 09:28 UTC
Server
Anycast: nearest of many locations
104.18.33.45
Cloudflare, Inc. · AS13335
🇺🇸San Francisco, United States
Checks
5 of 7 checks pass
Warnings are worth a look, but nothing is broken.
Hosting provider
Low confidence
Cloudflare
CDNOrigin host hidden. A CDN answers for this site and hides the origin server, so the real host is not visible from outside.
- CDN
Cloudflarecloudflare.com
Answers every request and forwards it to an origin server it does not reveal. The IP address below belongs to the CDN.
- Network
Owns the IP address that answered our lookup.
How we know
3 signals- NetworkAS13335Cloudflare
- Headercf-ray: a4a58df61add8d82-HELCloudflare
- Headerserver: cloudflareCloudflare
IP & network
104.18.33.45 · San Francisco
- IP address
- 104.18.33.45
- Network
- Cloudflare, Inc.AS13335 · hosting
- Route
- 104.18.33.0/24
- Location
- San Francisco, California, United StatesAnycast: where our lookup landed
- Timezone
- America/Los_Angeles
This is an anycast address: many locations announce it, and each visitor reaches the nearest one. The location above is only where our lookup landed.
Coordinates, postal code and company
Geolocation describes the network's registered location, not a street address. For a data center IP the postal code and coordinates are approximate.
- Coordinates
- 37.7621,-122.3971
- Postal code
- 94107
- Country code
- US
DNS records
70 records in 6 types
- A
2 records
IPv4 addresses the name points to
- 104.18.33.45
- 172.64.154.211
- NS
4 records
Nameservers that answer for the zone
- ns1-02.azure-dns.com
- ns2-02.azure-dns.net
- ns3-02.azure-dns.org
- ns4-02.azure-dns.info
- MX
5 records
Mail servers, lowest priority first
- 1 aspmx.l.google.com
- 5 alt1.aspmx.l.google.com
- 10 alt3.aspmx.l.google.com
- 5 alt2.aspmx.l.google.com
- 10 alt4.aspmx.l.google.com
- CAA
11 records
Certificate authorities allowed to issue certificates
- 0 issuewild "letsencrypt.org"
- 0 issue "amazon.com"
- 0 issue "digicert.com; cansignhttpexchanges=yes"
- 0 issue "godaddy.com"
- 0 issue "letsencrypt.org"
- 0 issue "pki.goog; cansignhttpexchanges=yes"
- 0 issue "sectigo.com"
- 0 issuewild "sectigo.com"
- 0 issuewild "pki.goog; cansignhttpexchanges=yes"
- 0 issuewild "digicert.com; cansignhttpexchanges=yes"
- 0 issuewild "amazon.com"
- SOA
1 record
Zone authority: primary nameserver, admin mailbox and timers
- ns1-02.azure-dns.com azuredns-hostmaster.microsoft.com 1 3600 300 2419200 300
- TXT
47 records
1 SPF policy, 40 ownership proofs, 6 other
- mgverify=22d53df776e7e9198e72a000c4056f5ba1624b8f2a50e3d0f4925fcea15bb5d4
- autodesk-domain-verification=HucZBMSc_T52XRJSn15D
- atlassian-domain-verification=xdHUKPdNqeX/XU/VMyGIRWfzqvhwWmcHR1DhX2J3JllvjIY3A0Aw9Ctst0DXGIgt
- parsec-domain-verification=td_30Hu4AtBG9pDT9HTJCFK42bxN3q
SSL certificate
- Status
- Valid certificateTrusted by browsers and covers openai.com. Expires in 61 days.
- Issuer
- Google Trust Services (WE1)
- Common name
- openai.com
- Protocol
- TLSv1.3
- Valid from
- September 16, 2026 at 04:59 AM UTC
- Valid to
- December 15, 2026 at 05:59 AM UTCExpires in 61 days
Covered hostnames
2 names- openai.com
- *.openai.com
Certificate chain
4 certificatesopenai.com
Server certificate · Issued by Google Trust Services (WE1) · Valid to 15 Dec 2026
Google Trust Services (WE1)
Intermediate · Issued by Google Trust Services LLC (GTS Root R4) · Valid to 20 Feb 2029
Google Trust Services LLC (GTS Root R4)
Intermediate · Issued by GlobalSign nv-sa (GlobalSign Root CA) · Valid to 28 Jan 2028
GlobalSign nv-sa (GlobalSign Root CA)
Root · Valid to 28 Jan 2028
Serial number and fingerprints
- Serial number
- 308895C1847CE7BD0E709C9AA5DC4296
- SHA-256
- CA:B7:05:36:EC:6B:31:44:BB:4A:96:72:8D:1F:2E:B1:4F:60:06:4F:46:9D:26:1B:4D:8F:34:77:E7:75:2A:84
- SHA-1
- 40:85:A0:EF:86:57:FB:5B:85:23:EC:4E:B3:19:38:F3:9E:51:75:02
Domain registration
Registered 19 Jan 2007
Expires in 828 daysRegistration data for openai.com, from the registry's RDAP or WHOIS service.
- Registrar
- MarkMonitor Inc.IANA ID 292
- Registrant
- OpenAIUS
- Registered
- 19 Jan 200719 years, 8 months old
- Expires
- 19 Jan 2029Expires in 828 days
- Last updated
- 17 Oct 2024
- DNSSEC
- Unsigned
- Abuse email
- abusecomplaints@markmonitor.com
- Abuse phone
- +1.2086851750
Status
Nameservers
4 nameservers- ns1-02.azure-dns.com
- ns2-02.azure-dns.net
- ns3-02.azure-dns.org
- ns4-02.azure-dns.info
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