WordPress
Why Is My WordPress Site Slow? How to Find the Cause
A server-side diagnosis for a slow WordPress site: split the delay into web server, PHP, database and page weight, with real timings from a 1 GB Nginx server.
Hosting guides, tutorials and server insights
Practical articles on web hosting, WordPress, domains, servers and website security from the Siteharbour team.
More articles
Servers
How to Set Up an Nginx FastCGI Cache for WordPress on a Small Server
How to add a FastCGI page cache to a small WordPress blog on Nginx, with bypass rules, an X-Cache header, real timings and a safe rollback.
Servers
How to Diagnose Memory Pressure on Linux
How to tell real memory pressure from normal Linux caching, with real free, vmstat and PSI output from a 1 GB production server.
Servers
How to Optimize MySQL and MariaDB on a Low-RAM WordPress Server
A measure-first guide to tuning MySQL or MariaDB on a small WordPress server without risking your data or your uptime.
Servers
How to Optimize PHP-FPM Workers for Limited RAM
A practical guide to sizing PHP-FPM workers on a low-RAM server, using real PSS measurements from a 1 GB production server.