Check-Host.cc

Try 1.1.1.1 AS13335 check-host.cc /country/de /tld/cc
IP Address IPv4

134.102.231.53

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

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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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ASN
AS680
DFN Deutsches Forschungsnetz e.V.
Country
DE
Germany
Reverse DNS
—
PTR
Open Ports
3
Last scan

Autonomous System

ASN
AS680
AS Name
DFN Deutsches Forschungsnetz e.V.
AS Type
—
RIR
RIPE NCC
Allocated
1993-09-01
Allocation status
Assigned

Geolocation

Country
DE · Germany
Continent
Europe
Source
MaxMind GeoLite2

Reverse DNS

PTR
—
Last seen
—

Network

Prefix
134.102.0.0/16
RPKI
—

Open Ports

Port Proto Service Server Last seen
80 tcp http Apache/2.4.67 (Debian) 2026-07-16 19:18:26.000
443 tcp https Apache/2.4.67 (Debian) 2026-06-15 15:31:32.000
8443 tcp https-alt — 2026-07-21 20:59:15.000

TLS Certificates

Port 443 1227799f8892…
Subject: dev.elearning.uni-bremen.de
Issuer: GEANT TLS RSA 1
SANs: dev.elearning.uni-bremen.de, dev2.elearning.uni-bremen.de, dev3.elearning.uni-bremen.de, dev4.elearning.uni-bremen.de, dev5.elearning.uni-bremen.de
Valid 2025-08-05 14:20:27 → 2026-08-05 14:20:27

Tech Stack

Wappalyzer fingerprinting pending

HTTP-body analysis identifies web frameworks, CMS platforms, analytics, JS libraries and server-side languages from this host.

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-leak candidates for this IP

When this IP serves a TLS cert for a domain that fronts behind a CDN, that domain surfaces here as an origin-leak candidate with a confidence score.

Hosted Domains

1 domain resolve (A-record) to this IP.

Domain
dev4.elearning.uni-bremen.de
Showing 1 of 1
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Multi-Vantage Check

Reachability accrued passively from real user-triggered checks across our 65+ probe nodes. Run a live check to add fresh data.

ICMP responsive This IP replied to our global ICMP sweep — last confirmed 2026-07-29.

No accumulated reachability data yet

Reachability accrues from real user-triggered checks. Trigger a Ping or HTTP check from our 65+ probe nodes to contribute the first data point.

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Web Pages

Login panel served on port 443 — a sign-in form is exposed to the internet.

Port Page title Status Flags
443 TESTSYSTEM - NICHT ANMELDEN - TESTSYSTEM - NICHT ANMELDEN 200 login
80 302 Found 302

Threat Intelligence

No threat-intel matches

This IP doesn't appear in any of the feeds we mirror (Tor exits, FireHOL Level 1-3, Spamhaus DROP/EDROP, URLhaus, OpenPhish). Absence here doesn't prove the IP is clean — it just means none of our public-feed sources flag it.

Co-Hosted Domains

Domains this host references in its HTML AND whose DNS A/AAAA record resolves back to this IP — i.e. actually hosted here.

dev4.elearning.uni-bremen.de DNS-confirmed

External References

Domains the body links to whose DNS does NOT resolve to this IP — usually CDN assets, embeds, or third-party services. Boilerplate (Google Fonts, jsDelivr, w3.org…) is already filtered.

www.uni-bremen.de href · ×4
blogs.uni-bremen.de href · ×2
www.studip.de href · ×1
nc.uni-bremen.de href · ×1
webmail.uni-bremen.de href · ×1
www.stw-bremen.de href · ×1

History

Historical change-log pending

ASN changes, prefix re-allocations, cert rotations, port-state diffs over months — accumulates as our archives grow.