Check-Host.cc

IP Address IPv4

155.138.193.136

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

Run a live full scan of 155.138.193.136

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
AS20473
The Constant Company
Country
US
United States
Reverse DNS
jlm3.com
PTR
Open Ports
1
Last scan

Autonomous System

ASN
AS Name
The Constant Company
AS Type
RIR
ARIN
Allocated
2001-05-11
Allocation status
Allocated

Geolocation

Country
US · United States
Continent
North America
Source
MaxMind GeoLite2

Reverse DNS

PTR
Last seen
2026-07-24 07:13:19

Network

RPKI

Open Ports

Port Proto Service Server Last seen
443 tcp https Apache/2.4.67 (Debian) 2026-07-24 07:12:51.000

TLS Certificates

Port 443 6a689b0014c9…
Subject: jlm3.com
Issuer: YR2
SANs: jlm3.com, www.jlm3.com
Valid 2026-07-16 11:03:48 → 2026-10-14 11:03:47

Tech Stack

Wappalyzer fingerprinting pending

HTTP-body analysis identifies web frameworks, CMS platforms, analytics, JS libraries and server-side languages from this host.

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 2026-08-05.

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 James Martin | Home 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.

jlm3.com 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.

github.com href · ×2
www.postgresql.org href · ×1
health.usf.edu href · ×1
r-spatial.github.io href · ×1
wordpress.com href · ×1
aws.amazon.com href · ×1
sadieryan.net href · ×1
www.esri.com href · ×1
scikit-learn.org href · ×1
topepo.github.io href · ×1
matplotlib.org href · ×1
www.stats.ox.ac.uk href · ×1
lpresearch.org href · ×1
ggplot2.tidyverse.org href · ×1
nginx.org href · ×1
slurm.schedmd.com href · ×1
www.freecadweb.org href · ×1
www.tableau.com href · ×1
www.mysql.com href · ×1
geodacenter.github.io href · ×1
keras.io href · ×1
dplyr.tidyverse.org href · ×1
geog.ufl.edu href · ×1
powerbi.microsoft.com href · ×1
gohugo.io href · ×1
ubuntu.com href · ×1
azure.microsoft.com href · ×1

History

First observed
2026-07-24 07:12
Last observed
2026-07-24 07:12
Scan observations
2

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