Check-Host.cc

Domain

platform.openai.com

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

Run a live full scan of platform.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
A/AAAA targets
Subdomains
CT + scan + body
Record Types
seen in DNS
Observed Certs
in our scans

DNS Records

A
104.18.33.45, 172.64.154.211
AAAA
2606:4700:440c::ac40:9ad3, 2a06:98c1:3103::ac40:9ad3, 2a06:98c1:310d::6812:212d
MX
NS
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

Hosts whose HTML body references this domain. Strong signal for origin/mirror/embed discovery.

95.216.215.91:8000 href · ×4
45.79.184.111:443 href · ×4
3.135.104.252:443 href · ×4
80.240.19.198:443 href · ×4
206.189.202.55:443 href · ×3
101.35.249.212:443 href · ×3
188.209.141.134:443 href · ×3
121.41.193.48:443 href · ×3
52.33.198.55:443 href · ×3
65.24.171.6:80 href · ×3
217.217.34.203:443 href · ×3
120.55.13.123:80 href · ×2
193.40.153.80:80 href · ×2
44.236.57.136:80 href · ×2
185.195.69.118:8000 href · ×2
66.63.177.204:8000 href · ×2
62.234.44.8:8000 href · ×2
101.43.111.168:443 href · ×2
51.12.52.94:443 href · ×2
140.245.49.59:8000 href · ×2
170.187.185.175:80 href · ×2
139.199.6.11:8000 href · ×2
8.134.135.91:80 href · ×2
59.110.214.108:80 href · ×2
120.79.163.183:443 href · ×2
42.193.109.5:80 href · ×2
43.161.217.162:8080 href · ×2
168.110.102.250:8000 href · ×2
101.133.174.68:443 href · ×2
104.248.229.39:443 href · ×2
39.105.186.182:80 href · ×2
43.153.219.204:443 href · ×2
175.22.32.195:8000 href · ×2
135.148.138.3:443 href · ×2
134.122.49.142:80 href · ×2
74.208.193.158:80 href · ×2
47.97.156.192:443 href · ×2
91.99.26.45:5000 href · ×2
120.25.191.240:80 href · ×2
43.156.119.84:8000 href · ×2
42.194.205.121:8000 href · ×2
110.40.171.61:8000 href · ×2
47.254.25.245:443 href · ×2
1.12.77.67:80 href · ×2
120.244.171.80:8000 href · ×2
185.25.148.232:8080 href · ×2
43.131.229.124:80 href · ×2
101.43.15.192:8000 href · ×2
54.66.90.215:443 href · ×2
103.196.23.94:8000 href · ×2

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.

92262bd04148b81e… sectigo · elephant2026h1
Subject: platform.openai.com
Issuer: WE1
SANs: platform.openai.com, *.platform.openai.com
Valid: 2026-01-12 19:44:15 → 2026-04-12 20:44:11
9c3937e6e3a74bb0… cloudflare · nimbus2026
Subject: platform.openai.com
Issuer: WE1
SANs: platform.openai.com, *.platform.openai.com
Valid: 2025-11-14 19:30:05 → 2026-02-12 20:30:04
9c3937e6e3a74bb0… sectigo · elephant2026h1
Subject: platform.openai.com
Issuer: WE1
SANs: platform.openai.com, *.platform.openai.com
Valid: 2025-11-14 19:30:05 → 2026-02-12 20:30:04
9d09e7aaa3fac4f5… sectigo · elephant2026h1
Subject: platform.openai.com
Issuer: WR1
SANs: platform.openai.com, *.platform.openai.com
Valid: 2025-11-14 19:29:58 → 2026-02-12 20:27:44

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 2a06:98c1:3103::ac40:9ad3 2026-05-25 22:02:50.525 2026-06-23 11:02:30.266
A 172.64.154.211 2026-05-25 22:02:50.525 2026-07-26 06:23:52.981
AAAA 2a06:98c1:310d::6812:212d 2026-05-25 22:02:50.525 2026-07-26 06:23:52.981
A 104.18.33.45 2026-05-25 22:02:50.525 2026-07-26 06:23:52.981
AAAA 2606:4700:440c::ac40:9ad3 2026-07-16 11:59:06.443 2026-07-26 06:23:52.981