Concerning code

Seeing as sites run on code, it would be naïve not to query it before someone else does.

Deleting redundant code

You diligently update active code such as plugins and your theme. Disused code, though, may begin to show cracks, posing a risk. There's no point in retaining unused files on a server, so get your pinny on and have a clean out. Here are some cobwebs:

• Abandoned plugins and other third party code

• Old version themes

• Rusty web file backups sat alongside production files

Spring clean the lot. If you must keep anything, move it above the web root and set the permissions to something like 600. Even better, download locally, and delete it remotely.

Scrutinize widgets, plugins and third party code

Do. Often, you don't know where they've been. Take time to research new additions.

There are approaching 10,000 plugins, for starters, featured in the official repository. Any could be poorly coded, badly maintained, or widely untested. Worse, there's the chance that an add-on masks...