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View all articles →The UUID Regex Everyone Copies Rejects UUID v7
The most-copied UUID regex caps versions at 5, so it rejects the v7 and v8 that RFC 9562 standardised in 2024. I tested it against eleven inputs.
Last Wednesday
Backend
llms.txt After Eighteen Months: What the Request Logs Show
Adoption reached 10% of domains, but AI crawlers fetched llms.txt 408 times across 500M visits. The evidence, the audience that does read it, and what to ship.
Last Tuesday
Web
Your Link Preview Is Broken Because the Crawler Never Saw the Page
Blank or wrong link previews are usually a crawler problem, not a tag problem: bot protection, client-side rendering, WebP images - and how to reproduce it.
Last Sunday
Web
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