Performance and monitoring

CPU, memory and processes CPU usage, concurrent connections and memory limits when the website slows down. 2 articles Cache, CDN, Redis and LiteSpeed LiteSpeed Cache in each application, object caching with Redis, Cloudflare and the QUIC.cloud CDN. 17 articles Compression and images Gzip and Brotli compression and bulk image optimisation to make pages lighter. 5 articles Metrics and logs Bandwidth, access statistics, error log and logged SQL queries. 6 articles Monitoring and quality Watch for downtime, measure with PageSpeed and analyse performance with PHP X-Ray or Proactive+. 7 articles Optimisation by application Speed up WordPress, WooCommerce and PrestaShop and debug slow SQL queries or bloated tables. 10 articles