SYSTEM LOGS

What every NAT type means on Xbox, PS5, Switch 2 and PC, which one is best for gaming, whether it affects ping, and how to fix strict NAT, double NAT and CGNAT.

Public TLS certificates land in Certificate Transparency logs that crt.sh can search. Why your subdomains are public and what a wildcard certificate hides.

A valid signature proves who signed a request, not that it is new. How replay attacks work, how a nonce and expiry stop them, and what a site must check.

A User-Agent proves nothing. How to tell real GPTBot, ChatGPT-User, ClaudeBot and PerplexityBot from fake AI bots: IP lists, reverse DNS and signatures.

A signature either verifies or it does not, and nobody says which part broke. The Agent Verifier names the exact fault in a Web Bot Auth setup and the fix.

For thirty years a bot was whoever it claimed to be. Web Bot Auth replaces that promise with an Ed25519 signature. How the protocol works and what it proves.

ECH finally closes the SNI leak in TLS 1.3. A practical guide to RFC 9849, how Encrypted Client Hello works, and how to actually enable it in Firefox, Chrome, and beyond.

Zero trust vs VPN for indie projects and small teams: how Cloudflare Tunnel with Access and Tailscale work, what each protects, and when to pick which.

DNS encryption explained: how DoH, DoT, DoQ and DoH3 differ, what Private DNS does on Android, Apple, Windows and in browsers, and what it leaves visible.

Your favorite text editor was weaponized. A deep dive into the WinGUp breach and why supply chain attacks are the new normal.