Check-Host.cc

IP Address IPv4

172.105.91.242

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

Run a live full scan of 172.105.91.242

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
AS63949
Linode AS63949
Country
DE
Germany
Reverse DNS
172-105-91-242.ip.linodeusercontent.com
PTR
Open Ports
66
Last scan

Autonomous System

ASN
AS Name
Linode AS63949
AS Type
RIR
APNIC
Allocated
2015-02-16
Allocation status
Allocated

Geolocation

Country
DE · Germany
Continent
Europe
Source
MaxMind GeoLite2

Reverse DNS

Last seen
2026-07-28 13:35:50

Network

RPKI

Open Ports

Port Proto Service Server Last seen
81 tcp gunicorn/19.4.5 2026-07-24 14:45:25.000
109 tcp 2026-07-17 09:54:04.000
119 tcp nntp 2026-07-22 12:45:49.000
135 tcp msrpc 2026-07-26 02:44:09.000
256 tcp 2026-06-22 04:25:09.000
322 tcp 2026-07-18 04:51:07.000
465 tcp smtps 2026-05-27 02:33:57.000
513 tcp 2026-07-18 17:12:28.000
514 tcp syslog 2026-07-20 13:50:09.000
593 tcp 2026-07-23 01:30:27.000
750 tcp 2026-06-17 02:10:41.000
873 tcp rsync 2026-07-23 19:36:18.000
880 tcp 2026-07-18 12:49:38.000
888 tcp 2026-07-23 20:49:51.000
1080 tcp socks 2026-07-27 05:33:34.000
1110 tcp 2026-07-28 13:34:54.000
1604 tcp 2026-06-20 10:31:03.000
1720 tcp 2026-07-17 18:18:44.000
1723 tcp pptp 2026-07-21 23:21:02.000
1812 tcp radius 2026-07-27 14:36:55.000
1813 tcp 2026-07-24 11:24:45.000
1900 tcp 2026-07-19 06:02:28.000
2082 tcp 2026-06-14 23:39:20.000
2087 tcp 2026-06-15 20:00:34.000
2375 tcp docker 2026-06-07 16:51:00.000
2967 tcp 2026-07-17 07:50:28.000
3000 tcp 2026-07-27 23:56:14.000
3306 tcp mysql 2026-07-17 08:11:37.000
3389 tcp rdp 2026-05-26 09:16:41.000
3457 tcp 2026-06-23 16:57:02.000
3690 tcp 2026-07-26 09:30:54.000
4040 tcp 2026-07-19 01:33:27.000
4900 tcp 2026-07-20 11:51:11.000
5002 tcp 2026-07-15 22:52:54.000
5006 tcp 2026-07-22 08:20:59.000
5061 tcp 2026-07-24 15:30:07.000
5631 tcp 2026-07-17 22:07:55.000
5901 tcp 2026-07-17 12:28:11.000
5902 tcp 2026-06-19 04:39:29.000
6000 tcp 2026-07-20 22:14:11.000
6669 tcp 2026-07-24 02:49:00.000
6697 tcp 2026-06-23 09:51:54.000
7676 tcp 2026-07-24 15:46:27.000
8001 tcp 2026-06-07 09:39:44.000
8118 tcp 2026-06-22 04:28:21.000
8200 tcp vault 2026-06-22 13:00:39.000
8880 tcp 2026-07-22 03:19:00.000
9001 tcp 2026-06-13 16:57:06.000
9091 tcp 2026-06-23 16:43:33.000
9418 tcp git 2026-07-17 08:41:12.000
9443 tcp Httpd 2026-07-24 04:15:25.000
10000 tcp 2026-07-20 18:34:26.000
10250 tcp 2026-07-17 04:50:51.000
11211 tcp memcached 2026-06-06 10:50:41.000
15672 tcp 2026-07-21 20:48:54.000
22222 tcp 2026-06-17 06:30:51.000
27018 tcp 2026-07-22 13:03:42.000
32764 tcp 2026-06-15 15:58:09.000
32768 tcp 2026-07-27 12:18:03.000
37777 tcp 2026-07-23 14:06:03.000
40000 tcp 2026-06-06 10:17:10.000
44818 tcp ethernet-ip 2026-05-31 13:23:41.000
47808 tcp 2026-06-21 10:29:13.000
50050 tcp 2026-07-19 11:59:14.000
54321 tcp 2026-07-16 18:32:24.000
60000 tcp 2026-07-24 16:54:47.000

TLS Certificates

Port 9443 c759a086e5c6…
Subject: localhost
Issuer: localhost
SANs: 127.0.0.1, localhost
Valid 2026-07-23 12:21:57 → 2027-07-23 12:21:57
Port 9443 0d39388b3fc2…
Subject: localhost
Issuer: localhost
SANs: 127.0.0.1, localhost
Valid 2026-06-04 05:05:21 → 2027-06-04 05:05:21

Known Vulnerabilities

Published CVEs matched to the software versions fingerprinted on this host. Matching is by product and version against the NVD dictionary — presence of a CVE does not confirm the host is exploitable (patches or backports may apply).

CVE Software CVSS Severity Summary
CVE-2018-1000164 gunicorn 19.4.5 7.5 N/A gunicorn version 19.4.5 contains a CWE-113: Improper Neutralization of CRLF Sequences in HTTP Headers vulnerability in "process_headers" function in "gunicorn/h...

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.

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 2026-08-03.

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

Login panel served on ports 81, 9443 — a sign-in form is exposed to the internet.

Port Page title Status Flags
81 Error 404--Not Found 200 login
9443 ZM - Login 200 login
9443 Error 404--Not Found 200 login

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

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.star2billing.com href · ×9
accounts.google.com href · ×6
www.freepbx.org href · ×6
github.com href · ×5
mobsf.github.io href · ×3
www.yiiframework.com href · ×3
www.cdr-stats.org href · ×3
www.mcafeesecure.com href · ×3
www.kld.com.tw href · ×3
www.dell.com href · ×3
zzzcms.com href · ×3
www.ppvod.com href · ×3
cipi.sh href · ×3
mywebsql.net href · ×3
www.bt.cn href · ×3
www.eversaas.cn href · ×3
www.ysoft.com href · ×3
api.ranzhico.com href · ×3
jeesite.com href · ×3
amysql.com href · ×3
www.opengear.com href · ×3
luyouw.360.cn href · ×3
fileview.jeecg.com href · ×3
owncloud.org href · ×3
cdn.alloyui.com href · ×3
www.xdoa.cn href · ×3
www.sharing-file.com href · ×3
www.redlion.net href · ×3
hpc.inspur.com href · ×3
xtaolabs.com href · ×3
www.hisome.com href · ×3
kkfileview.keking.cn href · ×3
www.phpcms.cn href · ×3
www.74cms.com href · ×3
ghost.org href · ×3
www.luopan.cn href · ×3
b.360.cn href · ×3
www.sangfor.com.cn href · ×3
asp.net href · ×3
www.dvripc.net href · ×3
www.stulz.de href · ×3
colorlib.com href · ×3
www.shop-script.com href · ×3
forum.panabit.com href · ×3
www.gl-inet.com href · ×3
www.directadmin.com href · ×3
rainmachine.com href · ×3
www.gnu.org href · ×3
tag.navdmp.com href · ×3
wx.weaver href · ×3
www.fsf.org href · ×3
www.phome.net href · ×3
www.rejetto.com href · ×3
about.gitlab.com href · ×3
c.salesforce.com href · ×2
www.hws.com href · ×2
www.pcfinal.cn href · ×2
www.cyberoam.com href · ×2
go.cpanel.net href · ×2
enphase.com href · ×2
kbserver.netgear.com href · ×1

History

First observed
2026-05-26 09:16
Last observed
2026-07-28 13:34
Scan observations
142

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