Check-Host.cc
Domain

2020.de

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

Run a live full scan of 2020.de

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
10
A/AAAA targets
Subdomains
4
CT + scan + body
Record Types
5
seen in DNS
Observed Certs
2
in our scans

DNS Records

A
104.26.2.213, 104.26.3.213, 172.67.71.138
AAAA
2606:4700:20::681a:2d5, 2606:4700:20::681a:3d5, 2606:4700:20::ac43:478a
MX
10 mxext1.mailbox.org, 10 mxext2.mailbox.org, 20 mxext3.mailbox.org
NS
abby.ns.cloudflare.com, dan.ns.cloudflare.com
TXT
MS=ms39219691, asv=47f8db55f7beddcefbf8fa824d11d45c, brevo-code:af2b0012cd0558bc4366c62efa62bceb, google-site-verification=JoHwa4CzUfwT6qv9J6MQay917pxN_iwGPUwPx03tRzI, seobility=479f3dd1cc1ce0ed796897dd98afc6ce, v=spf1 include:mailbox.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.

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.

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.

CT-Log Evidence

Certificates from public Certificate Transparency logs whose subject or SAN names this domain — including historic certs we never observed live.

0f16ac14fa912e1a… cloudflare · nimbus2026
Subject: 2020.de
Issuer: YE2
SANs: *.2020.de, 2020.de
Valid: 2026-08-30 10:18:59 → 2026-11-28 10:18:58
f0255ea9c8d06596… cloudflare · nimbus2026
Subject: 2020.de
Issuer: YE2
SANs: *.2020.de, 2020.de
Valid: 2026-08-30 10:18:59 → 2026-11-28 10:18:58

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 2606:4700:20::681a:2d5 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
TXT asv=47f8db55f7beddcefbf8fa824d11d45c 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
TXT google-site-verification=JoHwa4CzUfwT6qv9J6MQay917pxN_iwGPUwPx03tRzI 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
NS dan.ns.cloudflare.com 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
MX 20 mxext3.mailbox.org 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
TXT brevo-code:af2b0012cd0558bc4366c62efa62bceb 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
NS abby.ns.cloudflare.com 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
TXT seobility=479f3dd1cc1ce0ed796897dd98afc6ce 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
AAAA 2606:4700:20::681a:3d5 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
AAAA 2606:4700:20::ac43:478a 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
TXT MS=ms39219691 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
MX 10 mxext1.mailbox.org 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
A 104.26.3.213 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
TXT v=spf1 include:mailbox.org ~all 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
MX 10 mxext2.mailbox.org 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
A 172.67.71.138 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929
A 104.26.2.213 2026-07-18 11:32:23.864 2026-08-27 04:33:47.929