Lab

An engineering notebook, not a portfolio. Quick tests, proofs of concept, and hardware tinkering — some of it graduates into a full project, most of it doesn't, and that's fine.

concluded·2025-06-29·Next.js / Node.js

A one-page domain health checker

Quick Next.js API route that checks a domain's SPF, DMARC, SSL cert, robots.txt, and sitemap.xml in one request — for the 'is this domain actually configured right' question that comes up constantly.

Built in one sitting: hit /api/check?domain=example.com and get back SPF, DMARC, SSL certificate issuer/expiry, and whether robots.txt/sitemap.xml resolve — the handful of things that are tedious to check by hand every time a new client domain shows up. Deliberately stayed a single API route instead of growing a UI or a database; it does the one job it was built for.

RESULT: Works well as a one-off check; never grew past a single API route, and didn't need to