A question for techies: what are the most impactful ways to optimise a website to reduce carbon emissions?

There's a list of likely helpful things here, but I'm not sure where the biggest savings are going to be:

@rosjackson The problem is that will depend on what the web page does to begin with. Remove all the videos and get the most carbon savings for youtube. Heavy javascript websites can probably make huge savings by slimming that part down (savings multiplied by the number of visitors). There are several sites that make my laptop fan turn on they're so bad. For a normal personal blog, skipping (or slimming down) any ads or statistical tracking is probably the biggest factor.

@edebill Thanks. I'm looking at what can be done for a local authority site, so it has no ads and a number of different functions. The JavaScript issue is going to be tricky, because it effectively outsources energy use to the client, but it's still a source of emissions.

@rosjackson if it is not a heavy JavaScript site or one that loads a bunch of ad trackers then it may already be quite good about client power consumption. One test might be how well it works on a really outdated smartphone or ancient laptop that is running a modern web browser.

@nubesik It is! Although unfortunately it isn't something I'll be able to recommend for the website I'm looking at improving, because 95% uptime won't be enough.

@rosjackson yeah.. expectation are high. We should be more willing to adapt to the nature, but you currently can't make a business from that.

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