Check-Host.cc

IP Address IPv4

212.227.31.253

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

Run a live full scan of 212.227.31.253

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
AS8560
IONOS SE
Country
DE
Germany
Reverse DNS
PTR
Open Ports
1
Last scan

Autonomous System

ASN
AS Name
IONOS SE
AS Type
RIR
RIPE NCC
Allocated
1997-11-26
Allocation status
Allocated

Geolocation

Country
DE · Germany
Continent
Europe
Source
MaxMind GeoLite2

Reverse DNS

PTR
Last seen

Network

RPKI

Open Ports

Port Proto Service Server Last seen
443 tcp https Apache/2.4.58 (Ubuntu) 2026-05-26 14:01:32.000

TLS Certificates

Port 443 544b2dc7ebe4…
Subject: *.besancon25.biz
Issuer: Sectigo Public Server Authentication CA DV R36
SANs: *.besancon25.biz, besancon25.biz
Valid 2025-11-17 00:00:00 → 2026-11-19 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

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.

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 Rendre Accessible Internet - Besançon25 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.

xn--besanon25-u3a.fr DNS-confirmed
besancon25.fr DNS-confirmed
besancon25.biz DNS-confirmed
besancon25.biz 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.awin1.com href · ×6
shop.spreadshirt.fr href · ×3
www.meilleurduweb.com href · ×1
www.spreadshirt.fr href · ×1
policies.google.com href · ×1
c6.patreon.com href · ×1
patreon.com href · ×1
www.awin.com href · ×1
analytics.ahrefs.com href · ×1
www.net-liens.com href · ×1
boutic.acksop.1tpe.fr href · ×1
www.dwin2.com href · ×1
privacy.microsoft.com href · ×1
www.allopass.com href · ×1
www.patreon.com href · ×1

History

First observed
2026-05-26 14:01
Last observed
2026-05-26 14:01
Scan observations
2

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