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Use partial content reloading

Identifiers

GreenIT V2 V3 V4
40 49 38

Categories

Life cycle Tiers Responsible
3. Implementation Network UX/UI Designer

Indications

Priority Implementation difficulty Ecological impact
4 3 4
Saved resources
Processor / RAM / Network

Description

If your web page has one or more content zones with a high refresh rate, you should only reload these zones instead of the entire page. To achieve this you can use several techniques, generally with Javascript : AJAX, Service Workers, Web Components, or custom developments.

It is even possible to not include these parts in the HTTP response and to add them later with the Javascript described above. This architecture can be referred to as "component islands" or "islands architecture". On advantage is the ability to keep cache solutions for the "container" pages and to only reload the content parts that require it.

Example

News sites very commonly use this technique, for clearly identifiable areas that require quick updates (news flash, weather data, stock market prices, sports results, etc.).

Validation rule

The number of ... is equal to or less than
Content zones that can be partially updated but are not 0