Check-Host.cc

Domain

search.crossref.org

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

Run a live full scan of search.crossref.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
20
A/AAAA targets
Subdomains
CT + scan + body
Record Types
1
seen in DNS
Observed Certs
in our scans

DNS Records

A
100.25.90.146, 100.50.139.69, 13.222.48.122, 23.20.214.77, 23.22.110.161, 3.213.149.107, 32.199.123.186, 34.192.150.59
AAAA
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

Subject: labs.research.crossref.org
Issuer: Amazon RSA 2048 M01
SANs: labs.research.crossref.org, labs.research.dcbridgecrossref.org
Subject: *.research.crossref.org
Issuer: Amazon RSA 2048 M01
SANs: *.research.crossref.org

IPs Citing This Domain

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

77.222.52.34:443 href · ×12
103.150.193.198:80 href · ×10
77.222.60.136:443 href · ×9
103.250.10.60:443 href · ×9
103.102.149.59:8443 href · ×7
163.53.184.243:443 href · ×6
34.231.248.181:443 href · ×5
103.141.61.30:443 href · ×4
157.20.193.12:443 href · ×3
212.192.65.25:443 href · ×3
13.229.209.186:80 href · ×3
103.28.223.21:443 href · ×3
103.126.117.53:443 href · ×3
103.148.199.37:443 href · ×3
112.78.39.20:443 href · ×2
103.112.123.150:443 href · ×2
202.124.205.2:443 href · ×2
172.104.171.127:81 href · ×2
139.180.223.195:443 href · ×2
128.199.237.11:443 href · ×2
59.110.214.108:80 href · ×1
167.172.107.243:443 href · ×1
188.164.209.116:443 href · ×1
157.181.161.241:443 href · ×1
82.212.81.203:443 href · ×1
194.190.232.167:80 href · ×1
13.83.127.162:443 href · ×1
164.92.69.70:80 href · ×1
139.99.173.64:443 href · ×1
66.70.190.75:80 href · ×1
103.6.214.16:443 href · ×1
167.114.155.130:443 href · ×1
139.99.169.142:443 href · ×1
103.216.87.80:443 href · ×1
103.78.195.46:443 href · ×1
146.59.18.215:443 href · ×1
57.129.121.144:443 href · ×1
57.129.121.141:443 href · ×1
103.82.240.31:443 href · ×1
193.19.174.119:443 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

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 52.45.25.169 2026-05-25 22:02:50.525 2026-05-25 22:02:50.525
A 54.175.31.65 2026-05-25 22:02:50.525 2026-05-27 12:55:26.755
A 34.192.150.59 2026-05-25 22:02:50.525 2026-05-27 12:55:26.755
A 44.208.102.136 2026-05-25 22:02:50.525 2026-05-26 21:00:42.449
A 54.225.242.104 2026-05-26 02:54:15.517 2026-05-27 12:55:26.755
A 52.55.240.2 2026-05-27 01:16:30.398 2026-05-27 12:55:26.755
A 34.205.236.47 2026-06-15 01:07:50.467 2026-06-17 12:07:47.882
A 100.50.139.69 2026-06-15 01:07:50.467 2026-06-22 22:52:18.593
A 100.25.90.146 2026-06-15 01:07:50.467 2026-06-22 22:52:18.593
A 52.45.93.59 2026-06-15 01:07:50.467 2026-06-15 01:07:50.467
A 3.213.149.107 2026-06-15 16:50:44.015 2026-06-22 22:52:18.593
A 23.20.214.77 2026-06-18 18:54:21.796 2026-06-22 22:52:18.593
A 52.205.196.39 2026-07-16 18:22:19.807 2026-07-19 08:18:03.723
A 52.73.133.248 2026-07-16 18:22:19.807 2026-07-19 23:43:27.596
A 54.158.147.178 2026-07-16 18:22:19.807 2026-07-26 08:54:07.116
A 54.161.27.145 2026-07-16 18:22:19.807 2026-07-23 02:22:42.619
A 23.22.110.161 2026-07-19 23:43:27.596 2026-07-28 16:46:46.383
A 32.199.123.186 2026-07-21 09:05:28.092 2026-07-28 16:46:46.383
A 52.200.87.45 2026-07-26 08:54:07.116 2026-07-28 16:46:46.383
A 13.222.48.122 2026-07-27 00:19:18.651 2026-07-28 16:46:46.383