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The Two Scripts Cloudflare Appends to Every One of Our 56 Pages: 1,239 Bytes of Email Decoding and a 31,853-Byte Analytics Beacon
The Two Scripts Cloudflare Appends to Every One of Our 56 Pages: 1,239 Bytes of Email Decoding and a…
How to Change Video Speed Online: Speed Up, Slow Down and Ramp a Clip in Your Browser
Most videos have a stretch that drags and a moment that deserves more time. Changing speed lets you …
Mapping U.S. area codes to IANA time zones in JavaScript (and the 22 multi-zone edge cases)
Under federal telemarketing rules (47 CFR 64.1200(c)(1) and the FTC's Telemarketing Sales Rule), out…
Why "1 city = 1 area code" breaks local phone number matching (and how to model overlays in JavaScript)
A common mistake in CRM routing and voice applications is checking whether two phone numbers belong …
Every URL in your error messages is a promise: a 10-point checklist for links baked into software
Somewhere in a terminal right now, a developer is reading an error message like this: Error: inva…
How We Built & Deployed MediQuick: Zero-Token Git Deployments on OrbixPanel
How We Built & Deployed MediQuick: Zero-Token Git Deployments on OrbixPanel Connecting your self-h…
Parsing and validating North American (NANP) phone numbers in JavaScript without rejecting real callers
Many web forms validate U.S. phone numbers by stripping non-digits and checking /^\d{10}$/. That acc…
Your redirects file should be append-only. Deleting a redirect is a breaking change.
Every few years, someone on a web team opens the redirects file, scrolls through hundreds of rules w…
Build an online code editor in React with a Run button (and keep your API key off the browser)
You've seen the demo: a code editor in the browser, a language menu, a Run button, and the program's…
I Finally Made Money From Something I Built ($0 to $152)
I've been building side projects on weekends next to my job for years. Until this week every single …
Why Your GIF Turns Into a Still Image in Chats — and the MP4 Fix
You send a GIF and it lands as a frozen frame, gets rejected for size, or takes a minute to creep ac…
Schema Markup Guide for Developers: JSON-LD Examples That Work
Schema markup is structured data that tells search engines and AI tools what your page contains. It …