Check-Host.cc

IP Address IPv4

131.246.117.32

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

Run a live full scan of 131.246.117.32

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
AS199578
Click for details
Country
DE
Germany
Reverse DNS
ml.informatik.uni-kl.de
PTR
Open Ports
1
Last scan

Autonomous System

ASN
AS Name
AS Type
RIR
Allocated

Geolocation

Country
DE · Germany
Continent
Europe
Source
MaxMind GeoLite2

Reverse DNS

Last seen
2026-06-20 13:29:09

Network

RPKI

Open Ports

Port Proto Service Server Last seen
80 tcp http Apache/2.4.29 (Ubuntu) 2026-06-20 13:21:41.000

TLS Certificates

TLS certificate observations pending

Once our scan layer captures a TLS cert from this IP, certificate chain, JARM and JA4S fingerprints will appear here.

Tech Stack

Detected via Wappalyzer-style rules on the HTTP response body, headers, scripts and meta tags.

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

3 domains resolve (A-record) to this IP.

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 2026-07-31.

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.

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.

ml.cs.uni-kl.de DNS-confirmed
ml.cs.rptu.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.

olat.vcrp.de href · ×34
www.kis.uni-kl.de href · ×28
arxiv.org href · ×26
openreview.net href · ×18
sites.google.com href · ×16
ml4cce-ecml.com href · ×16
scholar.google.com href · ×14
www.sciencedirect.com href · ×14
www.ki-allianz-rlp.de href · ×12
wiki.ml.tu-berlin.de href · ×12
ieeexplore.ieee.org href · ×12
office.kis.uni-kl.de href · ×10
www.dagstuhl.de href · ×10
www.ijcai.org href · ×8
pubs.acs.org href · ×8
for5359.de href · ×8
aclanthology.org href · ×8
doi.org href · ×6
doc.ml.tu-berlin.de href · ×6
proceedings.mlr.press href · ×6
www.plosone.org href · ×6
dl.acm.org href · ×6
drops.dagstuhl.de href · ×4
www.uni-kl.de href · ×4
ml-dev.cs.uni-kl.de href · ×4
florianwenzel.com href · ×4
www.springerlink.com href · ×4
www.acm.org href · ×4
tfml.gmum.net href · ×4
scholar.google.se href · ×4
pubs.rsc.org href · ×4
www.nature.com href · ×4
scholar.google.de href · ×4
ceur-ws.org href · ×2
www.cs.nyu.edu href · ×2
www.biorxiv.org href · ×2
ui.adsabs.harvard.edu href · ×2
twitter.com href · ×2
piad.cs.rptu.de href · ×2
sciencedirect.com href · ×2
www.wikicfp.com href · ×2
aiimlab.org href · ×2
pubs.rsna.org href · ×2
manikvarma.org href · ×2
www.tandfonline.com href · ×2
ai.nejm.org href · ×2
web.cs.ucla.edu href · ×2
acp.copernicus.org href · ×2
ojs.aaai.org href · ×2
www.frontiersin.org href · ×2
projecteuclid.org href · ×2
www.degruyter.com href · ×2
docs.google.com href · ×2
piazza.com href · ×2
www.ecmlpkdd2018.org href · ×2
www.jmlr.org href · ×2
journals.plos.org href · ×2
www.chemeurope.com href · ×2
link.springer.com href · ×2
www.aidic.it href · ×2

History

First observed
2026-05-26 19:17
Last observed
2026-06-20 13:21
Scan observations
4

The full change-log (ASN moves, cert rotations, port-state diffs) accumulates as our archives grow.