Check-Host.cc

Try 1.1.1.1 AS13335 check-host.cc /country/de /tld/cc
Domain

openbsd.org

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

DNS Check HTTP Check Run Full Scan .org TLD

Run a live full scan of openbsd.org

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
23
A/AAAA targets
Subdomains
46
CT + scan + body
Record Types
5
seen in DNS
Observed Certs
3
in our scans

DNS Records

A
199.185.178.80
AAAA
2620:3d:c000:178::80
MX
5 mail.openbsd.org
NS
a.ns.bsws.de, auth1.ns.gin.ntt.net, auth4.ns.gin.ntt.net, auth5.ns.gin.ntt.net, b.ns.bsws.de, c.ns.bsws.de, dns1.openbsd.org, dns2.openbsd.org
TXT
v=spf1 mx a:mail.openbsd.org a:cvs.openbsd.org ~all
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

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
cdn.openbsd.org
151.101.3.52 151.101.67.52 151.101.131.52 151.101.195.52 +4
2026-05-27 08:46:39.912
cloudflare.cdn.openbsd.org
104.17.249.92 104.17.248.92 2606:4700::6811:f95c 2606:4700::6811:f85c
2026-06-19 22:45:59.617
anoncvs4.usa.openbsd.org
66.111.2.37 2610:1c0:0:5::37
2026-06-18 15:45:19.107
ftp.ch.openbsd.org
217.31.80.35 2a00:15a8:0:100:d91f:5023:0:1
2026-06-04 01:25:28.971
ftp.eu.openbsd.org
193.156.13.178 2001:700:5724:4701::8c
2026-07-21 05:15:22.935
ftp.usa.openbsd.org
66.111.2.37 2610:1c0:0:5::37
2026-06-18 15:45:19.107
ftp3.usa.openbsd.org
66.111.2.37 2610:1c0:0:5::37
2026-06-18 15:45:19.107
ftp4.usa.openbsd.org
66.111.2.37 2610:1c0:0:5::37
2026-06-18 15:45:19.107
ftp5.usa.openbsd.org
66.111.2.37 2610:1c0:0:5::37
2026-06-18 15:45:19.107
ftplist1.openbsd.org
199.185.178.80 2620:3d:c000:178::80
2026-07-18 20:34:07.500
openbsd.org
199.185.178.80 2620:3d:c000:178::80
2026-07-26 13:13:17.770
www.openbsd.org
199.185.178.80 2620:3d:c000:178::80
2026-07-28 11:27:18.946
cvsweb.openbsd.org
128.100.17.243
2026-07-18 20:34:07.500
ftp.fr.openbsd.org
145.238.169.11
2026-06-15 00:54:33.538
man.openbsd.org
128.100.17.244
2026-07-28 10:29:13.532
portroach.openbsd.org
145.238.169.11
2026-06-15 00:54:33.538

Tech Stack

Tech detection pending

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

TLS Certificates

5.59.233.135:443 725c6201a065…
Subject: man.openbsd.org.ru
Issuer: YR1
SANs: man.openbsd.org.ru
193.156.13.178:443 6bc7f5c81c42…
Subject: ftp.eu.openbsd.org
Issuer: YR1
SANs: ftp.eu.openbsd.org
23.251.108.30:443 55952a7320bf…
Subject: www.openbsd.org
Issuer: YR2
SANs: ftplist1.openbsd.org, libressl.org, openbsd.org, openiked.org, openssh.com, openssh.org, www.libressl.org, www.openbsd.org, www.openiked.org, www.openrsync.org, www.openssh.com, www.openssh.org
93.115.172.175:443 534d07a27099…
Subject: www.openbsd.org
Issuer: R12
SANs: ftplist1.openbsd.org, libressl.org, openbsd.org, openiked.org, openssh.com, openssh.org, www.libressl.org, www.openbsd.org, www.openiked.org, www.openrsync.org, www.openssh.com, www.openssh.org

IPs Citing This Domain

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

80.240.25.185:443 href · ×4
46.23.95.154:443 href · ×2
113.30.148.95:443 href · ×2
46.23.95.154:80 href · ×2
216.128.176.248:443 href · ×1
46.16.76.207:443 href · ×1
144.202.1.203:80 href · ×1
70.34.199.79:443 href · ×1
70.34.209.67:443 href · ×1
82.65.239.57:443 href · ×1
149.210.235.227:80 href · ×1
103.131.189.74:443 href · ×1
144.202.1.203:443 href · ×1
113.30.148.95:80 href · ×1
82.66.212.46:443 href · ×1
213.239.192.17:443 href · ×1

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.

Threat Intelligence

Domain threat-intel pending

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

History

Domain timeline pending

Passive-DNS history accumulates as our forward-DNS crawler observes A/AAAA/MX/NS/TXT records over time.