Host

212.45.77.75

Tags: Self-signed certificate Expired certificate

As of our latest check on 2026-06-07, 212.45.77.75 (Fiber Optics Bulgaria OOD, AS42459, Bulgaria) had 1 open port (443) and no known CVEs.

Known CVEs on this host

1open port

0names pointing here

0known CVEs

0known exploited

Open ports and CVEs as of our latest check of this host, 2026-06-07.

No known CVEs on this host.

Network: Fiber Optics Bulgaria OOD AS42459
Open ports: 443 · at our latest check, 2026-06-07
Location: Bulgaria BG
Hostname: 212-45-77-75.customers.istar-link.com · reverse DNS, checked 2026-10-05
Route: 212.45.72.0/21 · announced by Fiber Optics Bulgaria OOD AS42459 RPKI valid
Organisation: Fiber Optics Bulgaria · Network service provider (transit)
Registry network: ISTARLINK-SS-NET2 · 212.45.76.0 - 212.45.79.255 · RIPE
Abuse contact: [email protected] · for ISTARLINK-SS-NET2
First seen: 2026-06-07 08:34 UTC
Last seen alive: 2026-06-07 08:34 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 (1)

443/tcp TLS first 2026-06-07 · last 2026-06-07

TLS: TLSv1.0
Certificate for: localhost
Issued by: localhost
Valid: 2012-01-23 → 2022-01-20
Note: self-signed certificate

Raw response

HTTP/1.1 400 Bad Request
Server: nginx/1.5.2
Date: Sun, 07 Jun 2026 11:34:06 GMT
Content-Type: text/html
Content-Length: 672
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/1.5.2</center>
</body>
</html>
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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.

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