Writing
Everything I
have checked.
- 01 WordPress Sitemaps: Core Versus Plugin, and Whether AI Crawlers Read Them Yoast and Rank Math disable core sitemaps with the same one-line filter. What core emits, the 2,000 URL default, and what AI crawler docs say.
- 02 Canonical Tags on WordPress: What Breaks Them, and How to Audit Yours Core emits rel=canonical on singular pages only, and every SEO plugin removes that function anyway. Traced through core, Yoast and Rank Math source.
- 03 The wp-config Constants That Silently Change What WordPress Does Nine constants, the exact line of core that reads each one, and what breaks. CONCATENATE_SCRIPTS is forced off on the front end whatever you set it…
- 04 What WordPress Transients Actually Cost You set_transient with no expiry passes boolean true to add_option. The value is autoloaded on every request, skips the 6.6 size guard, and is never cleaned up.
- 05 WordPress Image Formats in 2026: What Core Does, and Bytes I Measured Myself WordPress 7.1 does not convert JPEGs to WebP. I read the source, then converted two real files at core's own quality defaults. AVIF lost one of…
- 06 What WordPress Core Actually Does When It Lazy Loads Your Images Zero loading=lazy attributes on my WordPress 7.1 site, and six high-priority images on one post. Here is the core logic a plugin threw away.
- 07 What Web Fonts Actually Cost on WordPress, Measured With curl My homepage preloads three fonts. All three return 404, at 24,100 gzipped bytes each. Here are the real font numbers behind that.
- 08 WordPress File Permissions That Actually Matter Core does not read 644 or 755 to decide if it can update itself. It compares file owners. Plus the three permission mistakes that end in…
- 09 Two Schedulers on One Site: WP-Cron Against Action Scheduler WP-Cron is one autoloaded option. Action Scheduler is three tables with nine indexes. And the batch size of 20 that lost the race was fixed in…
- 10 What a WordPress Backup Has to Contain Before a Restore Will Work UpdraftPlus free does not archive wp-config.php. Read from three plugins' source: what is in the archive, what is not, and the restore rehearsal that finds out.
- 11 Hardening wp-admin: What Actually Costs an Attacker Something Six standard hardening measures ranked by whether they change an attacker's work. Two are real, two depend on implementation, two are mostly noise reduction.
- 12 Finding the Slow Query in WordPress: EXPLAIN, the Slow Log, and What They Each Miss Rows_sent 12, Rows_examined 138,343. I built the real WordPress schema in Docker and measured what EXPLAIN tells you and what it cannot.
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