Check-Host.cc

IP Address IPv4

138.68.83.205

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

Run a live full scan of 138.68.83.205

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
AS14061
DigitalOcean
Country
DE
Germany
Reverse DNS
PTR
Open Ports
2
Last scan

Autonomous System

ASN
AS Name
DigitalOcean
AS Type
RIR
ARIN
Allocated
2012-09-25
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
80 tcp http 2026-07-21 12:44:30.000
443 tcp https 2026-07-28 12:37:50.000

TLS Certificates

Port 443 83c50e3f4623…
Subject: forwardscattering.org
Issuer: YR2
SANs: forwardscattering.org, www.forwardscattering.org
Valid 2026-06-18 15:31:32 → 2026-09-16 15:31:31

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

2 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.

Web Pages

Port Page title Status Flags
443 Forward Scattering - The Weblog of Nicholas Chapman 200
80 Forward Scattering - The Weblog of Nicholas Chapman 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.

forwardscattering.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.

en.wikipedia.org href · ×32
github.com href · ×18
www.reddit.com href · ×15
connect.microsoft.com href · ×9
substrata.info href · ×6
godbolt.org href · ×6
news.ycombinator.com href · ×4
bugreports.qt.io href · ×4
upload.wikimedia.org href · ×2
twitter.com href · ×2
www.meetup.com href · ×2
x.com href · ×2
www.desmos.com href · ×2
learn.microsoft.com href · ×2
www.cryptovoxels.com href · ×2
number-none.com href · ×2
www.cs.ucr.edu href · ×2
valgrind.org href · ×2
iquilezles.org href · ×2
www.scratchapixel.com href · ×2
www.cplusplus.com href · ×1

History

First observed
2026-07-21 12:44
Last observed
2026-07-28 12:37
Scan observations
4

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