What Happens When You Type a URL and Press Enter
DNS lookups, TCP and TLS handshakes, HTTP requests, servers, and the browser's rendering pipeline. The whole journey of a web page, explained so it finally clicks.
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Tips & writing
Notes from the workbench
Practical engineering tips, design theory and performance breakdowns — written for developers and founders who like their advice tested in production.
Filtering by tag #web-fundamentals — clear
HTTP Status Codes Explained: The Ones You'll Actually Use
There are dozens of HTTP status codes, but about fifteen cover nearly everything. What each one means, when to return it, and the mix-ups (401 vs 403, 301 vs 302) that confuse everyone.
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DNS Explained for Developers: Records, TTL and "Propagation"
A, AAAA, CNAME, MX, TXT and NS records in plain English, why DNS changes seem slow, and the troubleshooting commands that tell you what is really going on.
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HTTPS, SSL and TLS Explained: How Your Site Stays Secure
What actually happens when a browser shows the padlock, how certificates prove identity, why free certificates are just as secure, and how to fix mixed content and expiry problems.
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