NerdTools Fast, free online tools for sysadmins, developers, and nerds.

Scan any domain or IP in seconds.

Run WHOIS, DNS, SSL, security headers, blacklist checks, and more from a single interface. No registration required.

Hide results ? When enabled, this scan will not appear in the most recent searches or the scan leaderboard.

Tool Detail Page

Security Headers Check for bfi-informatik.net

Security Headers Check for bfi-informatik.net has a cached issue: OpenSSL/3.0.13: error:0A000410:SSL routines::sslv3 alert handshake failure

Cached issue

Cached Tool Summary

Security Headers Check for bfi-informatik.net has a cached issue: OpenSSL/3.0.13: error:0A000410:SSL routines::sslv3 alert handshake failure

Last cached scan: 2026-08-23 17:06 UTC

Key Facts

  • OpenSSL/3.0.13: error:0A000410:SSL routines::sslv3 alert handshake failure

Key Findings

JavaScript will refresh the complete result details when the page loads.

Why NerdTools?

Everything in one place

Stop juggling browser tabs. Run WHOIS, DNS, SSL, security headers, blacklist checks, and more from a single page.

Built for speed

Results load fast. No sign-up walls, no waiting around. Just enter a domain and go.

Free to use

Core scans are completely free. Short links are available when you need them.

Explore every tool