# CLS Impacting our SEO

**URL:** https://meta.discourse.org/t/cls-impacting-our-seo/338841
**Category:** Support
**Tags:** seo
**Created:** [November 27, 2024, 7:48pm UTC](https://meta.discourse.org/t/cls-impacting-our-seo/338841 "2024-11-27T19:48:32Z")
**Posts on this page:** 4
**Page:** 1

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### Author: ![npearson99](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/npearson99/32/468555_2.png) [@npearson99](https://meta.discourse.org/u/npearson99)
#### Post date: [November 27, 2024, 7:48pm UTC](https://meta.discourse.org/t/cls-impacting-our-seo/338841/1 "2024-11-27T19:48:32Z")

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I found a similar issue that Discourse said was fixed but I think we’re experiencing the same problem: [?page=n URLs have high CLS hence bad SEO](https://meta.discourse.org/t/page-n-urls-have-high-cls-hence-bad-seo/249554)

We have an issue: On September 3rd, 2024, our Search Console core web vitals started giving us many poor-performance URLs because of CLS of \> .25

We went from 0 to 5,179 in a day.

 ![image](https://global.discourse-cdn.com/meta/original/4X/6/1/8/618db8dd305279480e3f28e902d722478f91da2c.png)

It seems like these are only for URLs that have a “?page=X” in the query string. Here is an example: [Factor Meals, anyone done them? Looking at the first shipment, and wow - #20 by Deleteme - Nutrition - TrainerRoad](https://www.trainerroad.com/forum/t/factor-meals-anyone-done-them-looking-at-the-first-shipment-and-wow/93217/20?page=2)

Keen to get this fixed, thanks!

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### Author: ![david](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/david/32/157490_2.png) [@david](https://meta.discourse.org/u/david)
#### Post date: [November 28, 2024, 2:46pm UTC](https://meta.discourse.org/t/cls-impacting-our-seo/338841/2 "2024-11-28T14:46:50Z")

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Thanks for the report @npearson99. I can reproduce the problem, and we’ll work on getting a fix ASAP.

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### Author: ![david](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/david/32/157490_2.png) [@david](https://meta.discourse.org/u/david)
#### Post date: [November 28, 2024, 4:59pm UTC](https://meta.discourse.org/t/cls-impacting-our-seo/338841/4 "2024-11-28T16:59:15Z")

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We see the same sudden increase in CLS failures for [meta.discourse.org](http://meta.discourse.org), starting 9th November. Digging in, it seems to be related to the way we animate the background-color of posts when you navigate into a topic. That behaviour has been the same for 5+ years, so that suggests to me that this is a change to google/chrome’s measurement of CLS, rather than a change on the Discourse side.

We’ve decided to [drop the animation in question](https://github.com/discourse/discourse/commit/c98335e4e5046383767cc0494389acd0a3c78998). That should improve navigation performance on lower-spec devices, as well as resolve the CLS issue.

That change will land on Meta imminently, and I’ll get it queued up for your site as well @npearson99.

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### Author: ![npearson99](https://sea3.discourse-cdn.com/meta/user_avatar/meta.discourse.org/npearson99/32/468555_2.png) [@npearson99](https://meta.discourse.org/u/npearson99)
#### Post date: [December 2, 2024, 10:28pm UTC](https://meta.discourse.org/t/cls-impacting-our-seo/338841/6 "2024-12-02T22:28:21Z")

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Wow, you’re the best! Thank you!

Can you drop a message here when it’s live, please? I’d like to confirm that we go under the .25 on Search Console when it’s live.

Edit: It looks like it’s live; I don’t see the animation anymore. I think Google just hasn’t updated the page’s score yet. I’ll continue to monitor.

Thanks!