api.os.uk
Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.
Run a live full scan of api.os.uk
On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.
DNS Records
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.
Origin / IP-Leak
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.
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 |
|---|---|---|---|
| A | 34.244.190.140 | 2026-05-25 22:11:29.484 | 2026-05-27 08:12:55.831 |
| A | 34.244.112.116 | 2026-05-26 04:24:25.813 | 2026-05-26 04:24:25.813 |
| A | 54.217.174.185 | 2026-05-26 06:05:24.294 | 2026-05-27 17:20:23.420 |
| A | 63.33.58.249 | 2026-05-26 08:23:40.752 | 2026-05-26 08:23:40.752 |
| A | 79.125.30.58 | 2026-05-26 09:56:18.027 | 2026-06-15 16:07:34.561 |
| A | 3.248.200.50 | 2026-05-27 02:58:25.327 | 2026-06-17 17:19:57.117 |
| A | 108.129.134.54 | 2026-06-15 16:04:39.758 | 2026-06-15 16:04:39.758 |
| A | 108.131.136.9 | 2026-06-20 10:43:28.888 | 2026-06-20 10:43:28.888 |
| A | 52.211.239.110 | 2026-06-20 10:46:20.344 | 2026-06-20 10:46:20.344 |
| A | 63.33.199.11 | 2026-06-21 06:21:06.360 | 2026-06-23 15:40:07.222 |
| A | 3.253.251.109 | 2026-06-21 06:24:28.754 | 2026-06-21 06:24:28.754 |
| A | 18.202.213.19 | 2026-06-22 10:47:12.675 | 2026-06-22 10:47:12.675 |
| A | 18.201.126.90 | 2026-07-17 17:28:58.632 | 2026-07-17 21:27:17.633 |
| A | 34.255.208.200 | 2026-07-17 20:22:06.132 | 2026-07-17 20:22:06.132 |
| A | 63.35.192.180 | 2026-07-18 01:05:28.954 | 2026-07-18 01:05:28.954 |
| A | 3.73.48.153 | 2026-07-21 04:44:19.600 | 2026-07-26 04:51:49.428 |
| A | 18.156.3.198 | 2026-07-21 19:00:58.837 | 2026-07-27 15:45:40.580 |
| A | 18.159.60.100 | 2026-07-24 09:32:03.192 | 2026-07-24 09:32:03.192 |
| A | 63.183.214.2 | 2026-07-25 11:56:16.764 | 2026-07-28 16:36:45.579 |