It only uses 256 colours (compared to millions available) and uses lossless compression. GIF – the best choice for animated images.JPEG – generally the best option for adjusting the quality level to get a good balance of quality and file size.PNG – produces higher quality images, but the resulting file size is of course bigger.Without going into too much detail about the various formats, here are a few general guidelines:
Keep in mind that a 50% compression rate can often reduce an image size by 70, 80 or even 90%! Formatįew people consider the format of the images they upload to their WordPress website. Compressing will remove unnecessary information from the image and will chunk similar pieces of information together (yes, that's a very basic description). Where do these go? Demos?: Page loading with and without imagesĬompressing an image is the real task of optimisation. In short, it's the holy grail of website adventures!Īnd it can all start with optimising your images! And y ou'll save mobile data plan money for yourself and your visitors. Y ou'll need less storage and fewer resources on servers, which will save you money. M ore visitors will see your page and they'll stay longer so y our bounce rate will be lower. Your site will be faster, Google will like you more and your search engine rankings will improve. I know, Google Page speed insights isn’t the holy grail of website optimisation but still, it’s a good idea to keep Google happy wherever you can. No more “Optimize images” warnings you get in Google PageSpeed Insights. Your Google PageSpeed score will be better.This won’t really become important until you get a lot of visitors but when you start paying for extra bandwidth, you’ll start to pay attention to every detail of your site. The lower size will also mean visitors to your site will use less bandwidth to view your page. Backups often pile up unknown to you until you start running out of space. This will mean you use less of your allotted storage on your web server. People don’t often think of this one but it means less work for your web server to do.
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