Google announced that images in the AVIF file format will now be eligible to be shown in Google Search and Google Images, including all platforms that surface Google Search data. AVIF will dramatically lower image sizes and improve Core Web Vitals scores, particularly Largest Contentful Paint.
How AVIF Can Improve SEO
Getting pages crawled and indexed are the first step of effective SEO. Anything that lowers file size and speeds up web page rendering will help search crawlers get to the content faster and improve the amount of pages crawled.
Google’s crawl budget documentation recommends increasing the speeds of page loading and rendering as a way to avoid receiving “Hostload exceeded” warnings.
It also says that faster loading times enables Googlebot to crawl more pages:
Improve your site’s crawl efficiency
Increase your page loading speed
Google’s crawling is limited by bandwidth, time, and availability of Googlebot instances. If your server responds to requests quicker, we might be able to crawl more pages on your site.
What Is AVIF?
AVIF (AVI Image File Format) is a next generation open source image file format that combines the best of JPEG, PNG, and GIF image file formats but in a more compressed format for smaller image files (by 50% for JPEG format). AVIF supports transparency like PNG and photographic images like JPEG does but does but with a higher level of dynamic range, deeper blacks, and better compression (meaning smaller file sizes). AVIF even supports animation like GIF does.
Is AVIF Supported?
AVIF is currently supported by Chrome, Edge, Firefox, Opera, and Safari browsers. Not all content management systems support AVIF. However, both WordPress and Joomla support AVIF. In terms of CDN, Cloudflare also already supports AVIF.
I couldn’t at this time ascertain whether Bing supports AVIF files and will update this article once I find out.
