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Every expired-certificate outage was visible months in advance. Why auto-renewals fail silently, what breaks beyond the browser warning, and the 30/14/7-day check that prevents it.
Leer másLeading zeros vanish, dates flip, one stray comma shifts 40 rows silently. Six failure modes of CSV-to-JSON pipelines and the conversion order that prevents them.
Leer másMost dark-mode bugs are not about taste. They are hex values copied from a light theme and pasted into a context they were never measured for.
Leer másdatabase-backup.sql tells you nothing at 3am. database-backup-2026-09-26T0312.sql tells you which incident it belongs to.
Leer másA campaign URL is a contract with your analytics. Three characters in the wrong place and every click lands in the wrong report row.
Leer másCSS can display "HELLO" as "hello" all it wants — the data underneath is still uppercase. Where real case conversion belongs, what uppercase() gets wrong with names and locales, and the tools that do each job.
Leer másAn ampersand in a query string can eat half of your parameter list. Why percent-encoding exists, which characters actually need it, and how to stop guessing about that one link that never works right.
Leer másA slug is permanent infrastructure. Change it and you owe a redirect forever. Here is how to pick one that survives the rebrand, the redesign, and the next developer who inherits the site.
Leer más1766400000 is not a magic number, but most teams treat it like one. Reading and converting epoch timestamps is a two-second job when you stop doing it from memory.
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