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.
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.
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.
AVIF is generally a better file format than WebP in terms of smaller files size (compression) and image quality. WebP is better for lossless images, where maintaining high quality regardless of file size is more important. But for everyday web usage, AVIF is the better choice.
See also: 12 Important Image SEO Tips You Need To Know
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.
Current website usage of AVIF stands at 0.2% but now that it’s available to surfaced in Google Search, expect that percentage to grow. AVIF images will probably become a standard image format because of its high compression will help sites perform far better than they currently do with JPEG and PNG formats.
Research conducted in July 2024 by Joost de Valk (founder of Yoast, ) discovered that social media platforms don’t all support AVIF files. He found that LinkedIn, Mastodon, Slack, and Twitter/X do not currently support AVIF but that Facebook, Pinterest, Threads and WhatsApp do support it.
According to Google’s announcement there is nothing special that needs to be done to make AVIF image files indexable.
“Over the recent years, AVIF has become one of the most commonly used image formats on the web. We’re happy to announce that AVIF is now a supported file type in Google Search, for Google Images as well as any place that uses images in Google Search. You don’t need to do anything special to have your AVIF files indexed by Google.”
Read Google’s announcement:
Supporting AVIF in Google Search
Featured Image by Shutterstock/Cast Of Thousands