note
Notes
Short-form observations and references.
- Domain Registration: From ICANN to Your Browser How domains move from ICANN policy through registries and registrars to your browser — the three-tier model, EPP protocol, lifecycle states, status flags, and what happens when a domain drops.
- Multi-Agent Coordination Without an LLM A deterministic coordinator pattern for parallel AI agents — goals, budgets, feedback loops, and redirect signals without LLM judgment in the control plane.
- TLS Fingerprinting with curl_cffi How curl_cffi impersonates real browser TLS and HTTP/2 fingerprints in Python, what it handles automatically, and the one header you still need to set yourself.
- AIMD Rate Limiting for API Clients TCP congestion control applied to API rate limiting — additive increase on success, multiplicative decrease on errors. A control loop that finds the speed limit without being told.
- WHOIS Is Dead, Long Live RDAP ICANN sunsetted WHOIS in January 2025. RDAP replaced it — structured JSON over HTTPS instead of plaintext over TCP. Here's what changed and why it matters.
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