Check-Host.cc

Domain

support.api.openai.com

Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.

Run a live full scan of support.api.openai.com

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

Deep-scan now
Hosting IPs
4
A/AAAA targets
Subdomains
CT + scan + body
Record Types
3
seen in DNS
Observed Certs
in our scans

DNS Records

A
104.18.40.106, 172.64.147.150
AAAA
2606:4700:440a::ac40:9396, 2a06:98c1:310a::6812:286a
MX
NS
benedict.ns.cloudflare.com, raquel.ns.cloudflare.com
TXT
CNAME
CAA

WHOIS / Registration

Registration data planned

Registrar, creation/expiry dates and domain status via RDAP. Rolling out gradually — bulk WHOIS is rate-limited, so we resolve on a prioritized cadence.

Subdomains

Subdomain enumeration pending

Every subdomain ever issued a TLS cert under this apex — extracted from Certificate Transparency logs, our own scan observations and body references.

Tech Stack

Tech detection pending

Wappalyzer-rules detect CMS, frameworks, analytics, JS libs and server-side languages on this domain.

TLS Certificates

Certificate observations pending

TLS certs naming this domain in subject or SANs will appear here as our scan-layer catches them.

IPs Citing This Domain

No citing IPs found yet

As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.

Origin / IP-Leak

USP

When a hostname is served behind a CDN (e.g. Cloudflare), the origin server can sometimes be identified by matching its TLS cert against the protected hostname. Findings shown here are heuristic candidates, not guarantees.

No origin-IP leaks detected (yet)

Either this domain doesn't sit behind a CDN, or we haven't seen a TLS cert from a non-CDN IP matching this hostname. Run a fullscan to refresh the cert→IP cross-reference.

CT-Log Evidence

Certificates from public Certificate Transparency logs whose subject or SAN names this domain — including historic certs we never observed live.

30bb402258517d60… sectigo · elephant2026h1
Subject: support.api.openai.com
Issuer: E8
SANs: *.support.api.openai.com, support.api.openai.com
Valid: 2026-01-03 02:40:08 → 2026-04-03 02:40:07
5e906c98e61f7b2f… sectigo · elephant2026h1
Subject: support.api.openai.com
Issuer: R13
SANs: *.support.api.openai.com, support.api.openai.com
Valid: 2026-01-03 02:40:02 → 2026-04-03 02:40:01
bc99795926075af5… sectigo · elephant2026h1
Subject: support.api.openai.com
Issuer: WE1
SANs: support.api.openai.com, *.support.api.openai.com
Valid: 2026-01-01 00:24:03 → 2026-04-01 01:23:45
20f900cf6ad5f998… sectigo · elephant2026h1
Subject: support.api.openai.com
Issuer: WR1
SANs: support.api.openai.com, *.support.api.openai.com
Valid: 2026-01-01 00:23:40 → 2026-04-01 01:18:16
7558d550b8ca2ed7… cloudflare · nimbus2026
Subject: support.api.openai.com
Issuer: E8
SANs: *.support.api.openai.com, support.api.openai.com
Valid: 2025-11-04 19:47:58 → 2026-02-02 19:47:57
c1ca8116dabc91a9… cloudflare · nimbus2026
Subject: support.api.openai.com
Issuer: E8
SANs: *.support.api.openai.com, support.api.openai.com
Valid: 2025-11-04 19:47:58 → 2026-02-02 19:47:57
7558d550b8ca2ed7… sectigo · elephant2026h1
Subject: support.api.openai.com
Issuer: E8
SANs: *.support.api.openai.com, support.api.openai.com
Valid: 2025-11-04 19:47:58 → 2026-02-02 19:47:57
4698552a8ae05eb4… cloudflare · nimbus2026
Subject: support.api.openai.com
Issuer: R12
SANs: *.support.api.openai.com, support.api.openai.com
Valid: 2025-11-04 17:13:09 → 2026-02-02 17:13:08
4698552a8ae05eb4… sectigo · elephant2026h1
Subject: support.api.openai.com
Issuer: R12
SANs: *.support.api.openai.com, support.api.openai.com
Valid: 2025-11-04 17:13:09 → 2026-02-02 17:13:08
41cb34a58036a454… cloudflare · nimbus2026
Subject: support.api.openai.com
Issuer: WE1
SANs: support.api.openai.com, *.support.api.openai.com
Valid: 2025-11-02 23:55:56 → 2026-02-01 00:55:52
41cb34a58036a454… sectigo · elephant2026h1
Subject: support.api.openai.com
Issuer: WE1
SANs: support.api.openai.com, *.support.api.openai.com
Valid: 2025-11-02 23:55:56 → 2026-02-01 00:55:52
473fa1253679dac7… sectigo · elephant2026h1
Subject: support.api.openai.com
Issuer: WE1
SANs: support.api.openai.com, *.support.api.openai.com
Valid: 2025-11-02 23:55:56 → 2026-02-01 00:55:52

Threat Intelligence

Domain threat-intel pending

Matches in URLhaus, OpenPhish, PhishTank, malware feeds, and Spamhaus DBL.

History

Passive DNS — every value this name ever resolved to and when we first / last observed it. Updates every cycle of our forward-DNS crawler.

Type Value First seen Last seen
AAAA 2606:4700:440a::ac40:9396 2026-06-14 23:22:00.742 2026-06-20 23:18:35.329
A 172.64.147.150 2026-06-14 23:22:00.742 2026-06-20 23:18:35.329
NS benedict.ns.cloudflare.com 2026-06-14 23:22:00.742 2026-06-20 23:18:35.329
NS raquel.ns.cloudflare.com 2026-06-14 23:22:00.742 2026-06-20 23:18:35.329
A 104.18.40.106 2026-06-14 23:22:00.742 2026-06-20 23:18:35.329
AAAA 2a06:98c1:310a::6812:286a 2026-06-14 23:22:00.742 2026-06-20 23:18:35.329