learn.go.dev
Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.
Run a live full scan of learn.go.dev
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
No citing IPs found yet
As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.
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 |
|---|---|---|---|
| AAAA | 2a00:1450:400c:c09::79 | 2026-05-26 02:38:03.884 | 2026-05-26 02:38:03.884 |
| A | 74.125.133.121 | 2026-05-26 02:38:03.884 | 2026-05-26 02:38:03.884 |
| AAAA | 2a00:1450:400c:c07::79 | 2026-05-26 04:02:49.330 | 2026-05-26 04:02:49.330 |
| A | 142.251.168.121 | 2026-05-26 04:02:49.330 | 2026-05-26 04:02:49.330 |
| A | 192.178.183.121 | 2026-05-26 04:07:00.841 | 2026-05-26 04:07:00.841 |
| AAAA | 2a00:1450:4001:c17::79 | 2026-05-26 04:07:00.841 | 2026-05-27 12:59:06.588 |
| A | 74.125.71.121 | 2026-05-26 15:34:31.085 | 2026-05-26 15:34:31.085 |
| AAAA | 2a00:1450:400c:c0a::79 | 2026-05-26 15:34:31.085 | 2026-05-26 15:34:31.085 |
| A | 192.178.170.121 | 2026-05-27 12:59:06.588 | 2026-05-27 12:59:06.588 |
| AAAA | 2a00:1450:4025:402::79 | 2026-06-16 16:32:44.324 | 2026-06-16 16:35:54.148 |
| A | 142.250.27.121 | 2026-06-16 16:32:44.324 | 2026-06-16 16:32:44.324 |
| A | 142.250.102.121 | 2026-06-16 16:35:54.148 | 2026-06-16 16:35:54.148 |
| AAAA | 2a00:1450:400e:808::2013 | 2026-07-23 17:01:04.707 | 2026-07-23 17:01:04.707 |
| A | 142.251.209.243 | 2026-07-23 17:01:04.707 | 2026-07-23 17:01:04.707 |