Check-Host.cc

IP Address IPv4

136.81.112.123

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

Run a live full scan of 136.81.112.123

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
AS396982
Google Cloud
Country
US
United States
Reverse DNS
123.112.81.136.bc.googleusercontent.com
PTR
Open Ports
36
Last scan

Autonomous System

ASN
AS Name
Google Cloud
AS Type
RIR
ARIN
Allocated
2018-08-15
Allocation status
Allocated

Geolocation

Country
US · United States
Continent
North America
Source
MaxMind GeoLite2

Reverse DNS

Last seen
2026-07-21 20:55:19

Network

Prefix
RPKI

Open Ports

Port Proto Service Server Last seen
110 tcp pop3 2026-07-20 11:29:43.000
264 tcp 2026-06-19 17:25:19.000
322 tcp 2026-07-18 04:53:45.000
443 tcp https 2026-06-19 02:59:49.000
515 tcp 2026-06-22 01:24:52.000
636 tcp ldaps 2026-06-22 05:47:11.000
888 tcp 2026-06-21 20:09:23.000
902 tcp 2026-06-22 12:15:30.000
1241 tcp 2026-07-20 10:08:50.000
1311 tcp 2026-07-19 12:08:32.000
1521 tcp oracle 2026-07-18 23:32:11.000
1911 tcp niagara-fox 2026-07-17 23:06:15.000
2000 tcp 2026-07-17 22:19:31.000
2086 tcp 2026-07-20 17:34:03.000
2701 tcp 2026-07-18 06:30:42.000
2967 tcp 2026-06-22 20:24:48.000
3269 tcp 2026-07-16 15:53:19.000
3389 tcp rdp 2026-07-21 20:54:21.000
4899 tcp 2026-06-21 04:14:07.000
5004 tcp 2026-07-16 03:47:20.000
5101 tcp 2026-06-19 23:43:09.000
5500 tcp 2026-06-20 07:30:31.000
5985 tcp winrm-http 2026-07-21 06:14:25.000
7778 tcp 2026-06-21 18:26:26.000
8118 tcp 2026-07-21 09:09:10.000
8123 tcp 2026-06-23 15:03:52.000
9000 tcp php-fpm 2026-06-21 15:58:22.000
9043 tcp 2026-07-21 01:22:41.000
9080 tcp 2026-07-21 12:21:28.000
9100 tcp 2026-06-23 19:39:12.000
9500 tcp 2026-07-16 13:55:04.000
20000 tcp 2026-06-19 06:44:35.000
20547 tcp 2026-06-21 10:14:53.000
32769 tcp 2026-07-18 15:52:36.000
49152 tcp 2026-06-21 18:57:55.000
64738 tcp 2026-06-19 11:49:30.000

TLS Certificates

TLS certificate observations pending

Once our scan layer captures a TLS cert from this IP, certificate chain, JARM and JA4S fingerprints will appear here.

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.

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 2026-07-16.

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

No DNS-confirmed domains yet

We cross-reference body-cited domains against our DNS resolver records. Confirmations appear here once both sides have data for the same name.

External References

No external references found yet

As HTML bodies get banner-grabbed, references to external domains land here.

History

First observed
2026-06-19 02:59
Last observed
2026-07-21 20:54
Scan observations
72

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