Check-Host.cc

Domain

0xffff.one

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

Run a live full scan of 0xffff.one

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
14
A/AAAA targets
Subdomains
10
CT + scan + body
Record Types
5
seen in DNS
Observed Certs
9
in our scans

DNS Records

A
104.21.26.56, 172.237.129.108, 172.237.129.236, 172.237.129.242, 172.67.135.143
AAAA
2606:4700:3033::6815:1a38, 2606:4700:3035::ac43:878f
MX
1 mail.eye-mail.net, 10 mxbiz2.qq.com, 5 mxbiz1.qq.com
NS
ns1.ns306.parklogic.com, ns2.ns306.parklogic.com, vip1.alidns.com, vip2.alidns.com
TXT
google-site-verification=21wvRLkHSAVzPEadFQq3VlVtxmbNDy514aGm2r8Kv6Y, google-site-verification=EiDUys5kjBDzJNLfFNwStq1R4gO6wCgslMvjfse-zNw, v=spf1 ip6:fdec:ae16:fda7::/48 -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

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: 0xffff.one
Issuer: YE2
SANs: *.0xffff.one, 0xffff.one

IPs Citing This Domain

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

101.201.210.92:443 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
AAAA 2606:4700:3035::ac43:878f 2026-05-27 01:49:21.268 2026-05-27 01:49:21.268
NS vip1.alidns.com 2026-05-27 01:49:21.268 2026-05-27 01:49:21.268
A 104.21.26.56 2026-05-27 01:49:21.268 2026-05-27 01:49:21.268
NS vip2.alidns.com 2026-05-27 01:49:21.268 2026-05-27 01:49:21.268
TXT google-site-verification=21wvRLkHSAVzPEadFQq3VlVtxmbNDy514aGm2r8Kv6Y 2026-05-27 01:49:21.268 2026-05-27 01:49:21.268
TXT google-site-verification=EiDUys5kjBDzJNLfFNwStq1R4gO6wCgslMvjfse-zNw 2026-05-27 01:49:21.268 2026-05-27 01:49:21.268
A 172.67.135.143 2026-05-27 01:49:21.268 2026-05-27 01:49:21.268
MX 5 mxbiz1.qq.com 2026-05-27 01:49:21.268 2026-05-27 01:49:21.268
AAAA 2606:4700:3033::6815:1a38 2026-05-27 01:49:21.268 2026-05-27 01:49:21.268
MX 10 mxbiz2.qq.com 2026-05-27 01:49:21.268 2026-05-27 01:49:21.268
NS ns2.ns306.parklogic.com 2026-07-22 17:20:12.010 2026-07-22 17:20:12.010
A 172.237.129.236 2026-07-22 17:20:12.010 2026-07-22 17:20:12.010
TXT v=spf1 ip6:fdec:ae16:fda7::/48 -all 2026-07-22 17:20:12.010 2026-07-22 17:20:12.010
MX 1 mail.eye-mail.net 2026-07-22 17:20:12.010 2026-07-22 17:20:12.010
A 172.237.129.108 2026-07-22 17:20:12.010 2026-07-22 17:20:12.010
NS ns1.ns306.parklogic.com 2026-07-22 17:20:12.010 2026-07-22 17:20:12.010
A 172.237.129.242 2026-07-22 17:20:12.010 2026-07-22 17:20:12.010