# Hubspot automatic image optimization

**URL:** <https://community.hubspot.com/t/hubspot-automatic-image-optimization/70553>\
**Category:** CMS Development\
**Tags:** developer\
**Created:** [December 5, 2022, 1:37pm UTC](https://community.hubspot.com/t/hubspot-automatic-image-optimization/70553 "2022-12-05T13:37:35Z")\
**Posts on this page:** 1\
**Showing post:** 2

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**Author:** ![alyssamwilie](https://d10pqhm3lwygmk.cloudfront.net/user_avatar/community.hubspot.com/alyssamwilie/32/2072_2.png) [@alyssamwilie](https://community.hubspot.com/u/alyssamwilie)\
**Post date:** [December 6, 2022, 8:59pm UTC](https://community.hubspot.com/t/hubspot-automatic-image-optimization/70553/2 "2022-12-06T20:59:34Z")

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Lighthouse doesn’t give the “Serve images in next-gen formats” message just because they’re are pngs and jpgs on the page. They take those images, convert them to wepb, and then compare the file sizes. If the converted image results in a certain amount of data savings _then_ it’ll give the message. Since HubSpot is doing the conversion on the server side the file size Lighthouse will see is that of the converted image so when they do their size comparison it’s not going to result in any savings thus yes, technically, Lighthouse “knows” about the conversion.

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_[View the full topic](https://community.hubspot.com/t/hubspot-automatic-image-optimization/70553)._