21/tcp
FTP
first 2026-08-27 · last 2026-08-27
- Banner
- 220 Welcome! Please note that all activity is logged.
Raw response
220 Welcome! Please note that all activity is logged.
Host
104.237.2.33
Tags: Expired certificate
As of our latest check on 2026-08-27, 104.237.2.33 (Nodisto IT, LLC, AS394727, United States) had 4 open ports (21, 22, 25, 443) and 25 known CVEs.
Known CVEs on this host
4open ports
0names pointing here
25known CVEs
0known exploited
Open ports and CVEs as of our latest check of this host, 2026-08-27.
CVEs by severity: CRITICAL 2 HIGH 5 MEDIUM 12 LOW 6
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
- Nodisto IT, LLC AS394727
- Open ports
- 21, 22, 25, 443 · at our latest check, 2026-08-27
- Location
- United States US
- Route
- 104.237.2.0/24 · announced by Nodisto IT, LLC AS394727 no RPKI authorisation
- Organisation
- Nodisto IT, LLC
- Registry network
- HOSTEROS · 104.237.0.0 - 104.237.15.255 · Hosteros LLC · ARIN
- First seen
- 2026-08-27 20:20 UTC
- Last seen alive
- 2026-08-27 20:24 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 (4)
- Server
- SSH-2.0-OpenSSH_8.9p1
- Host key
- ssh-ed25519 cb9a77c919e78f36…
Raw response
SSH-2.0-OpenSSH_8.9p1
25/tcp
SMTP
first 2026-08-27 · last 2026-08-27
- Banner
- 220 zrirc.co.uk ESMTP
Raw response
220 zrirc.co.uk ESMTP 500 unrecognized command 500 unrecognized command 500 unrecognized command 500 Too many unrecognized commands
443/tcp
TLS
first 2026-08-27 · last 2026-08-27
- TLS
- TLSv1.2
- Certificate for
- zrirc.co.uk
- Issued by
- R11
- Valid
- 2024-12-08 → 2025-03-08
Raw response
HTTP/1.1 400 Bad Request Server: nginx Date: Thu, 27 Aug 2026 20:21:17 GMT Content-Type: text/html; charset=utf-8 Content-Length: 650 Connection: close <html> <head><title>400 The plain HTTP request was sent to HTTPS port</title></head> <body> <center><h1>400 Bad Request</h1></center> <center>The plain HTTP request was sent to HTTPS port</center> <hr><center>nginx</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.