Check-Host.cc

IP Address IPv4

130.44.204.215

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

Run a live full scan of 130.44.204.215

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
Not yet attributed
Country
US
United States
Reverse DNS
PTR
Open Ports
Last scan

Autonomous System

ASN
AS Name
AS Type
RIR
Allocated

Geolocation

Country
US · United States
Continent
North America
Source
MaxMind GeoLite2

Reverse DNS

PTR
Last seen

Network

Prefix
RPKI

Open Ports

Port-scan data not yet ingested

Open-port and banner-grab data from our scan layer will appear here. World-sweep covers all IPv4 over time — this host may be in a /8 we haven't reached yet.

TLS Certificates

Port 443 63e2cffa4f75…
Subject: *.ams.org
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.ams.org, ams.org
Valid 2026-04-24 00:00:00 → 2026-11-08 23:59:59

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.

ams.org 95% confidence
behind AS13335 cert 63e2cffa4f75… · cert 63e2cffa… served by 130.44.204.215 (AS63182) carries SAN ams.org which currently resolves through Cloudflare (AS13335) at 104.18.28.217, 104.18.29.217, 2606:4700::6812:1cd9, 2606:4700::6812:1dd9

Multi-Vantage Check

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

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.

blogs.ams.org 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.

mrnotebook.ams.org href · ×183
mathscinet.ams.org href · ×7
www.ams.org href · ×5
www.fhgr.ch href · ×3
mrweb.ams.org href · ×3
s.w.org href · ×2
breakthroughprize.org href · ×1
www.mathjobs.org href · ×1
scriptstown.com href · ×1
www.lathisms.org href · ×1
bookstore.ams.org href · ×1
gmpg.org href · ×1
api.w.org href · ×1

History

First observed
2026-05-26 19:50
Last observed
2026-07-25 03:09
Scan observations
4

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