Don’t go back and forth: using service workers to reduce your website’s footprint

When you visit a web page, your browser will ask the server to send the data it needs to build that page. The browser will then build the page with the received data, but maybe not completely from scratch. If you have visited that page before, the browser might have some parts of the page saved (or cached) on your computer. It will, however, always ask the server for some of the data.

What if we could tell the browser not to contact the server if the content has not changed? Well, we can: enter service workers. And they can even do much more than that.

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Join the Global Digital Climate Strike

People will join young climate strikers in a Global #ClimateStrike on the streets on September 20th, 2019, and demand an end to the age of fossil fuels. Anyone with an online presence has an opportunity to join in and “go green” with a digital strike. Show your support for these people walking out of their homes and workplaces by showing a banner on your site. You can join here. If you have a WordPress site, you can install this plugin and use the banner without further hassle.

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The making of this little blog

I built this site to be as small as possible in size and still realistic to manage. A smaller size means that less energy is required to view it. Although this is not the only aspect of sustainable web development, it is an important one: striving to a minimal page size from the start is essential.

In this post, I explain how this site was built. I try to do it in a non-technical way. But I can not promise anything. So hang on, here we go.

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