Diagnosing performance.
MEASURE FIRST
Load a static file. If that is fast while pages are slow, the problem is the application, not the server.
Run the site through a performance testing tool and look at the waterfall: is the delay in the first response, or in downloading assets?
SLOW FIRST RESPONSE
No caching, so every request runs the full application Slow database queries, usually missing indexes A heavy extension doing work on every page An outdated PHP version External API calls during page load Hitting your resource allowance
SLOW ASSETS
Large unoptimised images Too many separate files Third-party scripts
THE ORDER OF FIXES
Enable caching Optimise images Remove extensions you do not use Update PHP Add a CDN
DATABASE
Enable the slow query log or use a profiling tool. A single unindexed query on a growing table is the most common cause of a site that was fast and is now slow.
IF NONE OF THIS HELPS
Open a ticket with your performance report and we will check the account server-side.
