Miloslav Homer




googly_eyes

How Google Sees Your Site

As I'm analyzing what is actually coming to my site, there's this huge Google category that really deserves it's own space.

pexels-woman_climbing
2026-06-22

Security is ultimately a political problem that may have technical solutions. It's because we can always risk it and hope for the best. Observe a climber, solving the technical problem of ascending after a political decision of taking this route.

ja4_thumb2

Let’s deploy JA4. A tutorial for a HAProxy deployment and a proof-of-concept of PCAP collection and then parsing in Python.

ja4_thumb1

The internet is full of bots and some aren't nice (DDoS, scraping, exploits, AI..). To block bots, we must identify them in the traffic. That's hard as some pretend to be human/browsers! Let's explore JA3/JA4 hashes, fingerprinting the TLS handshake.

ech_flow
2026-04-08

Internet traffic is mostly encrypted - one SNI extension still causes trouble. Encrypted Client Hello aims to fix this for a price of dependency on big tech. Is this the way?