Scott Labz

Field Notes: Infrastructure & Ops

Hosting, caching, DNS, email, and the operational plumbing that keeps a site and its systems running.

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Banner illustration for Field Notes, real breakdowns of tag management failures, schema drift, and data bugs
Topics: All Field Notes Measurement & Data Frontend & CSS Infrastructure & Ops Performance

What It Takes to Keep a Stadium POS System Online on Gameday

Sixty thousand phones want the same signal a payment terminal needs - satellite internet alone was never going to be the fix.

Teaching Inboxes to Recognize a Real Sender

A verified brand mark next to outgoing mail wasn't a paid certificate away - it was a mail provider away.

Cache Clears Itself the Moment Content Changes

A manual purge step works fine until the one time someone forgets it, so the deploy step does it instead.

HTTP Headers, Read Properly

A live header audit - a CSP not naming its own origins.

The Purge That Only Ran Manually

A cache-purge workflow passed every run without ever actually firing.

The Cloudflare 7003 Diagnosis

A silent deploy failure - a routing error, a bad secret, an exposed token.