CDN vs Origin Server: Why Your IP Lookup Shows Cloudflare
IP lookups returning Cloudflare instead of the actual site owner isn't a bug. It's anycast routing, orange clouds, and the deliberate architecture of modern web infrastructure.
Read more →Networking
IP addressing, DNS, routing, protocols and how the internet actually works.
Traceroute, MTR, and the Art of Diagnosing Network Problems
How traceroute works, how to read MTR output, and how to use both tools to pinpoint exactly where in the internet a connection is failing.
Read more →
Port Scanning 101: What Open Ports Say About Your Server
nmap, Shodan, masscan: what port scanning reveals and why a single exposed Redis or RDP port can be the entry point for a breach. A practical guide for server owners.
Read more →
DNS Explained: DoH, DoT, ECH and the Privacy Revolution of 2026
Classic DNS is plaintext. DoH hides your queries, DoT does the same on its own port, and ECH finally kills the last leak in TLS. A practical 2026 guide to the encrypted DNS stack.
Read more →
WHOIS Lookup 2026: What It Still Reveals (and What GDPR Hid)
GDPR gutted public WHOIS in 2018. Here's what's still in there in 2026, how to read a modern record, and the investigator tricks (historical WHOIS, reverse lookup, nameserver pivot) that still work.
Read more →
How DPI Works: A Global Overview of Deep Packet Inspection
From the Great Firewall to Iran, Turkey and the UK — a practical explainer of how Deep Packet Inspection works, what it can and can't see, and how users route around it.
Read more →
Static vs Dynamic IP — Which One Do You Actually Need?
If you have to ask, you probably don't need a static IP. Here's the honest 2026 breakdown — who needs one, who doesn't, and the cheaper alternatives most guides skip.
Read more →
IPv4 vs IPv6: The Complete Guide for 2026
Half the internet runs on IPv6 in 2026. Here's the no-nap guide to the two protocols, why IPv4 won't die, and the handful of cases where the difference actually matters.
Read more →
What Is My IP? Public vs Private IP Explained (2026)
Two addresses, one device: the plain-English guide to what an IP is, the difference between public and private, who sees yours, and what it actually reveals.
Read more →