Check-Host.cc

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

ahrefs.com

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

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Run a live full scan of ahrefs.com

On-demand: ports, banners, TLS, tech-stack, subdomains and origin/IP-leak detection. Results are shared publicly for everyone to link to.

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Hosting IPs
22
A/AAAA targets
Subdomains
25
CT + scan + body
Record Types
6
seen in DNS
Observed Certs
14
in our scans

DNS Records

A
—
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

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
analytics.ahrefs.com
104.18.39.141 2606:4700:440d::ac40:9473 2606:4700:440b::6812:278d 2a06:98c1:310d::6812:2aea +9
2026-07-28 18:27:17.459
ahrefs.com
172.64.148.115 2606:4700:440d::ac40:9473 2606:4700:440b::6812:278d 104.18.39.141 +2
2026-07-28 11:44:59.719
app.ahrefs.com
172.64.148.115 104.18.39.141 2606:4700:440b::6812:278d 2606:4700:440d::ac40:9473
2026-07-19 17:53:10.731
help.ahrefs.com
172.64.148.115 104.18.39.141 2a06:98c1:3106::6812:278d 2606:4700:4404::ac40:9473
2026-05-27 04:19:56.370
pay.ahrefs.com
104.18.35.156 172.64.152.100 2606:4700:4405::ac40:9864 2a06:98c1:3103::6812:239c
2026-06-20 15:06:27.004
trust.ahrefs.com
52.215.61.184 52.19.214.220 52.211.33.69
2026-07-22 12:13:12.060
tech.ahrefs.com
162.159.152.4 162.159.153.4
2026-07-21 06:05:34.962
analytics2.ahrefs.com
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

No citing IPs found yet

As the world-sweep progresses, hosts referencing this domain in their HTML will surface here.

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.

Origin IP Origin ASN CDN ASN Confidence Reasoning
209.146.32.112 AS174 AS13335 95% cert 932368e2… served by 209.146.32.112 (AS174) carries SAN ahrefs.com which currently resolves through Cloudflare (AS13335) at 172.64.148.115, 104.18.39.141, 2606:4700:440d::ac40:9473, 2606:4700:440b::6812:278d
37.230.115.100 AS29182 AS13335 95% cert b8f07cc3… served by 37.230.115.100 (AS29182) carries SAN ahrefs.com which currently resolves through Cloudflare (AS13335) at 172.64.148.115, 104.18.39.141, 2606:4700:440d::ac40:9473, 2606:4700:440b::6812:278d
168.100.140.249 AS140577 AS13335 95% cert 932368e2… served by 168.100.140.249 (AS140577) carries SAN ahrefs.com which currently resolves through Cloudflare (AS13335) at 172.64.148.115, 104.18.39.141, 2606:4700:440d::ac40:9473, 2606:4700:440b::6812:278d

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.