BP_057_en.md

Use all levels of the CMS cache

Identifiers

GreenIT	V2	V3	V4
60	57	57

Categories

Life cycle	Tiers	Responsible
4. Production	Datacenter	System Administrator

Indications

Priority	Implementation difficulty	Ecological impact
4	3	4

Saved resources
Processor / RAM

Description

If the CMS (like Wordpress, Drupal, eZ Publish, etc.) offers a multi-level cache system, using these different levels as their granularity reduces used resources (CPU cycles, memory) and offers better performances to users.

Example

A CMS like WordPress does not natively have a cache system, but there are several plugins that can answer to this requirement. The most popular are:

• W3 Total Cache
• WP Super Cache
• WP-rocket

With one of these plugins, pages are cached on the server and are no longer generated for each user. Additionally, this kind of tools also provides other WebPerf-oriented optimizations following web ecodesign principles.

Validation rule

The number of ...	is equal to or less than
non-activated caches	0