Optimisation by application

1. Improve WordPress database performance with Index WP MySQL For Speed Assess WordPress indexes with Index WP MySQL For Speed, review the changes before applying them and compare queries and writes on a recoverable copy. 3 min · Reviewed 09/2026 →
2. How to load the reCAPTCHA script with Contact Form 7 only where it is needed Assess the cost of reCAPTCHA in Contact Form 7 and limit where it loads only after identifying every form, taking into account the effect on spam detection. 3 min · Reviewed 09/2026 →
3. Replace WP-Cron with a hosting cron job Set up a system task to run WordPress events, check that it works and avoid leaving tasks pending when you disable the visit-based trigger. 4 min · Reviewed 09/2026 →
4. Speed up and optimise WordPress and WooCommerce step by step Optimise WordPress and WooCommerce step by step by reviewing PHP, cron, LiteSpeed Cache, images, the database, CDN, memory and unnecessary plugins. 13 min · Reviewed 09/2026 →
5. Optimise the wp_options table and "autoload" data Measure and reduce autoloaded data in wp_options, find large options, cron, transients and sessions, and weigh up indexes or object caching. 5 min · Reviewed 09/2026 →
6. Slow "SELECT SQL_CALC_FOUND_ROWS" SQL queries Diagnose slow WordPress queries with SQL_CALC_FOUND_ROWS, find where they come from and validate any index with EXPLAIN before changing the database. 3 min · Reviewed 09/2026 →
7. SQL queries to clean orphaned data and purge the WordPress database Clean orphaned data, revisions and transients in WordPress with verified queries, a recoverable backup, tests on a clone and checks before deleting. 7 min · Reviewed 09/2026 →
8. Diagnose slow LEFT JOIN queries in WordPress Analyse slow taxonomy queries with LEFT JOIN, compare plans and alternatives on a copy and avoid unmaintained direct patches to the core. 3 min · Reviewed 09/2026 →
9. Improve PrestaShop performance step by step Measure PrestaShop slowness and review PHP, templates, cache, images and modules without applying universal tweaks that change how the shop works. 4 min · Reviewed 09/2026 →
10. How to diagnose and improve a slow website or application General guidelines for speeding up applications through configuration, caching, PHP, static resources, external dependencies and browser debugging. 5 min · Reviewed 09/2026 →

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