Check-Host.cc

IP Address IPv4

13.37.172.105

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

Run a live full scan of 13.37.172.105

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
AS16509
Amazon.com
Country
FR
France
Reverse DNS
ec2-13-37-172-105.eu-west-3.compute.amazonaws.com
PTR
Open Ports
1
Last scan

Autonomous System

ASN
AS Name
Amazon.com
AS Type
RIR
ARIN
Allocated
2000-05-04
Allocation status
Allocated

Geolocation

Country
FR · France
Continent
Europe
Source
MaxMind GeoLite2

Reverse DNS

Last seen
2026-05-27 02:54:40

Network

Prefix
RPKI

Open Ports

Port Proto Service Server Last seen
443 tcp https nginx/1.30.0 2026-05-26 19:18:38.000

TLS Certificates

Port 443 0f1ad0413850…
Subject: mopsus-test.altum.ai
Issuer: Amazon RSA 2048 M01
SANs: mopsus-test.altum.ai
Valid 2026-02-27 00:00:00 → 2026-09-12 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.

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.

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.

Web Pages

Port Page title Status Flags
443 Data Platform van Altum AI 200

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.

mopsus-test.altum.ai 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.

app.cal.com href · ×3
eu.i.posthog.com href · ×3
client.crisp.chat href · ×3
cdn-cookieyes.com href · ×3
eu.posthog.com href · ×2
js.stripe.com href · ×2
api.stripe.com href · ×1
api.mopsus.altum.ai href · ×1
via.placeholder.com href · ×1
mopsus.altum.ai href · ×1
www.google.nl href · ×1
api.altum.ai href · ×1
images.altum.ai href · ×1
cdn.altum.ai href · ×1

History

First observed
2026-05-26 19:18
Last observed
2026-05-26 19:18
Scan observations
2

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