
Available disk space is critically low means PHP reported under 20 MB free on the filesystem that holds wp-content. On shared hosting that filesystem belongs to the whole server, not to your plan, so the warning can be wrong in either direction. Read the Disk Usage meter in cPanel instead. Near its limit: clear old backups, logs and unused plugins before updating. Plenty of room: the warning is a measuring problem, not a full site.
The WordPress white screen of death is a fatal PHP error, not an outage. Three server-controlled conditions decide whether you get a recovery email, a critical error page, or a silent blank screen.

To optimize WordPress for AI search, start at the server: AI crawlers never run JavaScript, so whatever your server returns in that first response is the only content ChatGPT, Claude, and Perplexity can ever cite.

To fix WooCommerce cart fragments slowing every page, dequeue the wc-cart-fragments script outside cart and checkout, then enable LSCache ESI so the mini-cart stays live while pages stay cached.

Choosing a web hosting provider comes down to twelve questions with published numbers behind them. A host that will not disclose worker counts, memory ceilings, or renewal pricing is telling you something.
