Technical notes drawn from real projects: frontend, backend, AI, security, SEO, media and mobile apps.
Titles, descriptions, product names, images, Google Search Console and Google Business Profile: what an owner can do in one afternoon, and the technical part to hand to a developer.
Beginner
A slow site never shows an error, it just sends visitors away. How to use PageSpeed Insights in five minutes, read LCP, INP and CLS in plain words, and what you can fix yourself or hand to a developer.
Beginner
House address, plot of land, door lock and mailbox: four web concepts explained with everyday examples, how to choose, and two common mistakes, a forgotten domain renewal and email in spam without SPF, DKIM and DMARC.
Beginner
Conventions that keep your API from breaking other people's apps: path naming, one shape for errors, cursor paging, versioning, protection against duplicate orders, and call limits.
Intermediate
Use EXPLAIN to see what the database plans to do with a slow query, then order index columns correctly, avoid the mistakes that hide an index, and paginate deep without slowing down.
Intermediate
A two-language site can stay invisible to Google over a few small missing lines. How to declare the main address, the language pair, the sitemap and structured data, plus the root-redirect trap.
Intermediate
The same AI gives very different results depending on how you ask. A five-part way to write the request, three layers against invention, and a working code check.
Intermediate
Compress, cut, join, subtitle and make vertical versions of a whole folder of videos with FFmpeg, faster with an NVIDIA card. Real measurements, the AV1 limit, and a safe batch script.
Intermediate
A Next.js site's mobile speed score went from 95 to 99. The before and after numbers, each change, why the first 14.6 KB matters, and what didn't improve.
Intermediate