Check-Host.cc

Domain

kaufmann.dk

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

Run a live full scan of kaufmann.dk

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

DNS Records

A
104.26.0.178, 104.26.1.178, 172.67.72.133
AAAA
2606:4700:20::681a:1b2, 2606:4700:20::681a:b2, 2606:4700:20::ac43:4885
MX
10 kaufmann-dk.mail.protection.outlook.com
NS
ashley.ns.cloudflare.com, igor.ns.cloudflare.com
TXT
_globalsign-domain-verification=wpRSMcoXAfGzVpvFQF5Y89W4xv6mhEnUSVBMwTYx0E, google-site-verification=d5L6jvoGn_ZuxSa3Y1YHblhM4ohr07cSF-taqhprlbQ, v=spf1 include:_spf1.kaufmann.dk include:_spf3.kaufmann.dk include:cust-spf.exacttarget.com include:spf.protection.outlook.com ip4:178.251.2.104/29 ip4:116.202.228.229 -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: *.kaufmann.dk
Issuer: GlobalSign GCC R6 AlphaSSL CA 2025
SANs: *.kaufmann.dk, kaufmann.dk
Subject: *.kaufmann.dk
Issuer: GlobalSign GCC R6 AlphaSSL CA 2025
SANs: *.kaufmann.dk, kaufmann.dk
Subject: pages.email.kaufmann.dk
Issuer: DigiCert Global G2 TLS RSA SHA256 2020 CA1
SANs: pages.email.kaufmann.dk

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
178.251.4.100 AS48854 AS13335 95% cert 0b07b8c3… served by 178.251.4.100 (AS48854) carries SAN kaufmann.dk which currently resolves through Cloudflare (AS13335) at 104.26.0.178, 104.26.1.178, 172.67.72.133, 2606:4700:20::681a:1b2

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 172.67.72.133 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
MX 10 kaufmann-dk.mail.protection.outlook.com 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
A 104.26.1.178 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
AAAA 2606:4700:20::681a:b2 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
A 104.26.0.178 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
NS ashley.ns.cloudflare.com 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
TXT v=spf1 include:_spf1.kaufmann.dk include:_spf3.kaufmann.dk include:cust-spf.exacttarget.com include:spf.protection.outlook.com ip4:178.251.2.104/29 ip4:116.202.228.229 -all 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
AAAA 2606:4700:20::681a:1b2 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
SRV _sipfederationtls._tcp 100 1 5061 sip.kaufmann.dk 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
AAAA 2606:4700:20::ac43:4885 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
NS igor.ns.cloudflare.com 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
TXT _globalsign-domain-verification=wpRSMcoXAfGzVpvFQF5Y89W4xv6mhEnUSVBMwTYx0E 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415
TXT google-site-verification=d5L6jvoGn_ZuxSa3Y1YHblhM4ohr07cSF-taqhprlbQ 2026-06-17 18:25:24.121 2026-06-25 20:05:56.415