linux.do
Aggregated from public BGP, CT logs, our scan layer, honeypots and global probes.
Run a live full scan of linux.do
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
Every subdomain we know about — harvested from CT-log SANs, scan-observed certs and HTML body references — paired with its current A/AAAA target.
| Subdomain | Resolves to | Last seen |
|---|---|---|
| check.linux.do | 2026-06-16 16:21:09.234 | |
| connect.linux.do | 2026-07-22 14:15:47.566 | |
| linux.do | 2026-07-28 17:13:52.071 | |
| nav.linux.do | 2026-07-22 14:15:47.566 | |
| pow.linux.do | 2026-06-24 02:56:20.780 | |
| ads.linux.do | 1970-01-01 00:00:00.000 | |
| autodiscover.linux.do | 1970-01-01 00:00:00.000 | |
| cdk.linux.do | 1970-01-01 00:00:00.000 | |
| docker-gcr.linux.do | 1970-01-01 00:00:00.000 | |
| docker-ghcr.linux.do | 1970-01-01 00:00:00.000 | |
| docker-hub.linux.do | 1970-01-01 00:00:00.000 | |
| docker-ui.linux.do | 1970-01-01 00:00:00.000 | |
| lottery.linux.do | 1970-01-01 00:00:00.000 | |
| mta-sts.linux.do | 1970-01-01 00:00:00.000 | |
| rate.linux.do | 1970-01-01 00:00:00.000 | |
| uptime.linux.do | 1970-01-01 00:00:00.000 | |
| webmail.linux.do | 1970-01-01 00:00:00.000 | |
| wiki.linux.do | 1970-01-01 00:00:00.000 | |
| www.linux.do | 1970-01-01 00:00:00.000 |
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 |
|---|---|---|---|
| TXT | stripe-verification=d86ad55b4aeb3926892d8b9bbd8f89af18cc0a5d2aaaa45c4a931a644c047d07 | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| TXT | v=spf1 include:_spf.smtp.do a:mail.linux.do -all | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| TXT | google-site-verification=dXFnJHavazXf0Czwwn70iSIW1U26O7ZrGWiuPFY5RL4 | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| A | 104.20.16.234 | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| MX | 10 mail.linuxdo.org | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| AAAA | 2606:4700:10::6814:10ea | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| NS | dahlia.ns.cloudflare.com | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| AAAA | 2606:4700:10::ac42:a63d | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| CAA | 0 issue "ssl.com" | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| CAA | 0 issuewild "digicert.com; cansignhttpexchanges=yes" | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| CAA | 0 issuewild "ssl.com" | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| MX | 5 mail.linux.do | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| A | 172.66.166.61 | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| SRV | _autodiscover._tcp 10 1 443 _dc-srv.6c7d7b05fffb._autodiscover._tcp.linux.do | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| CAA | 0 issue "digicert.com; cansignhttpexchanges=yes" | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| NS | marek.ns.cloudflare.com | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| CAA | 0 issuewild "comodoca.com" | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| CAA | 0 issuewild "letsencrypt.org" | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| CAA | 0 issuewild "pki.goog; cansignhttpexchanges=yes" | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| CAA | 0 issue "letsencrypt.org" | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| CAA | 0 issue "comodoca.com" | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |
| CAA | 0 issue "pki.goog; cansignhttpexchanges=yes" | 2026-05-26 02:30:04.450 | 2026-07-28 17:13:52.071 |