What this hub covers
Guides about PHP-FPM, OPcache, LSAPI, LiteSpeed Cache, Redis, Memcached, HTTP/3, QUIC, LVE, MariaDB, MySQL and PageSpeed.
Guides in this topic
The links below build a topical path from diagnosis to configuration.
Website 500 error - what to check before contacting supportHow to diagnose 500 error: PHP, .htaccess, error_log, plugins, PHP version, file permissions and recent changes.CloudLinux LVE - hosting limits without guessingHow to understand LVE: CPU, RAM, IO, processes, entry processes, symptoms of limits and when to upgrade.HTTP/3 and QUIC - what they give a websiteWhat HTTP/3 and QUIC mean on hosting: faster connections, better mobile behavior, TLS and performance test caveats.Hosting account hitting LVE limits - what it meansHow to read CloudLinux LVE limits: CPU, RAM, IO, IOPS, Entry Processes, bots, PHP workers, cache and app optimization.LSAPI and LiteSpeed Cache - fast websites on hostingHow LSAPI and caching speed up websites: PHP, WordPress, page cache, cart exclusions and post-enable tests.MariaDB 11 and MySQL 8 on hosting - the database mattersHow the database affects WordPress, stores and PHP apps: versions, indexes, backups, slow queries and migrations.PHP-FPM and OPcache - why a website runs fasterExplanation of PHP-FPM and OPcache: PHP process handling, bytecode cache, lower load and diagnostics.Redis or Memcached for WordPress and storesWhen to use Redis or Memcached: object cache, WordPress, WooCommerce, database queries, sessions and effectiveness tests.PHP versions on hosting - from legacy apps to PHP 8.5How to choose a PHP version: application compatibility, security, performance, PHP-FPM, OPcache and post-change tests.Slow WordPress website - how to start diagnosticsHow to diagnose slow WordPress: PageSpeed, TTFB, cache, plugins, theme, database, images, PHP and bots.