Host

51.9.136.65

Tags: Expired certificate

As of our latest check on 2026-05-20, 51.9.136.65 (British Telecommunications Limited, AS6871, United Kingdom) had 2 open ports (80, 443) and 11 known CVEs, 1 known to be exploited.

Known CVEs on this host

2open ports
0names pointing here
11known CVEs
1known exploited

Open ports and CVEs as of our latest check of this host, 2026-05-20.

CVEs by severity: HIGH 7 MEDIUM 4

A match is an indication, not proof: it is based on the software version a service reported, and fixes are often backported without changing the version. See the list

Network
British Telecommunications Limited AS6871
Open ports
80, 443 · at our latest check, 2026-05-20
Location
United Kingdom GB
Hostname
65.136.9.51.dyn.plus.net · reverse DNS, checked 2026-10-04
Route
51.9.0.0/16 · announced by British Telecommunications Limited AS6871 RPKI valid
Organisation
Plusnet plc · Access network (cable / DSL / ISP)
Registry network
FORCE9 · 51.9.0.0 - 51.9.255.255 · British Telecommunications Limited · RIPE
Abuse contact
[email protected] · for FORCE9
First seen
2026-05-20 03:54 UTC
Last seen alive
2026-05-20 03:55 UTC
Hosted domains
No host name points here

Reputation

Not a Tor relay, not a VPN or privacy relay address, and not on a current public blocklist.

Services (2)

80/tcp HTTP nginx/1.14.2 11 CVEs first 2026-05-20 · last 2026-05-20
Status
200 OK
Title
Under Construction
Server
nginx/1.14.2
Raw response
HTTP/1.1 200 OK
Server: nginx/1.14.2
Date: Wed, 20 May 2026 03:54:34 GMT
Content-Type: text/html
Content-Length: 162
Connection: keep-alive
X-Frame-Options: SAMEORIGIN
Upgrade: h2
Last-Modified: Thu, 21 Jan 2010 19:26:02 GMT
ETag: "a2-47db1ac67a680"
Accept-Ranges: bytes
X-XSS-Protection: 1; mode=block

<html>
<head>
<title>Under Construction</title>
<meta http-equiv="Content-Type" content="text/html; charset=iso-8859-1" >
</head>
Under Construction
</html>
443/tcp TLS first 2026-05-20 · last 2026-05-20
TLS
TLSv1.2
Certificate for
*.rowan-moor.co.uk
Issued by
R13
Valid
2026-05-01 → 2026-07-30
Raw response
HTTP/1.1 400 Bad Request
Server: nginx/1.14.2
Date: Wed, 20 May 2026 03:54:34 GMT
Content-Type: text/html
Content-Length: 673
Connection: close

<html>
<head><title>400 The plain HTTP request was sent to HTTPS port</title></head>
<body bgcolor="white">
<center><h1>400 Bad Request</h1></center>
<center>The plain HTTP request was sent to HTTPS port</center>
<hr><center>nginx/1.14.2</center>
</body>
</html>
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->
<!-- a padding to disable MSIE and Chrome friendly error page -->

Vulnerabilities

Port history

Every port that has answered a connection on this address, and when. A port is listed as open above only when a service was identified on it. Times are UTC.