Guides
WordPress
Guides
-
What is caching? Browser, page and object caches
Caching keeps a ready-made copy of something so it does not have to be built again. The layers that make websites fast, and when…
-
How to move a WordPress site to a new host
Copy the files and database, test on the new server before anyone else sees it, then switch DNS with the old host kept as…
-
How much RAM and CPU does a website need?
Rough starting sizes for common sites, why memory runs out before CPU, and how to measure what your own site actually uses.
-
Why do my emails go to spam?
Most legitimate mail lands in spam for fixable reasons: missing SPF, DKIM or DMARC, a server with a poor reputation, or a site sending…
-
How to fix the WordPress white screen of death
A blank page or “There has been a critical error” means PHP stopped with a fatal error. Find the plugin or theme responsible and…
-
How to fix “Error establishing a database connection”
WordPress cannot reach its database. Either the login details are wrong, the database server is down, or the database itself is damaged.
-
How to fix ERR_TOO_MANY_REDIRECTS
Two rules are sending visitors back and forth forever. Usually HTTP and HTTPS, or www and non-www, set differently in two places.
-
How to fix 404 Not Found errors on your site
A few 404s are normal. Sudden ones, or every page except the home page, point to a broken rewrite, a moved page or a…
-
How to fix 503 Service Unavailable
The server is up but refusing work for now: maintenance mode, an overload, or a limit being hit. How to tell which, and clear…
-
How to fix 500 Internal Server Error
A 500 is the server’s way of saying “something broke and I won’t say what”. The error log will. Here is where to find…