Reducing your web pages' size helps with both load time for people with slower internet connections and them having access to your pages in the first place.

We have seen that there can be many reasons for users to opt-in to save-data, and that the performance delivered to devices doesn’t (yet) vary much based on the hint. A lack of awareness from both developers and web users mean that a potentially valuable web platform feature is under utilized.

So with a little bit of JavaScript, backend code and some thought, it is possible to deliver your website using less data.