Web Core Vitals - scores wildly fluctuate?
-
I have run lighthouse reports multiple times today, and they have bounced up and down 20 points within hours of each other. A coworker ran hist test that returned a 90 while I scored a 68, my next test was an 88? Is this a common issue. I can understand a few points, but this is insanity!
-
@gpainter thanks! I will check that out. My lighthouse plugin on both chrome and firefox has stopped working.
-
@dezzign Thank you! That is great stuff.
-
as well as what @Dezzign said which are excellent points you can use Googles speed test tool which inf act runs lighthouse under it, you can also use GTmetrix which can also be a great way to see how you're doing, its always good to get a couple of input points.
-
A couple of quick tips that may help:
- Make sure you have the site scrolled to the very top of the screen, otherwise the scores will be different, because the test leverages the visual layout you see on the screen.
So if you're scrolled down the page a bit, and then you do a test, you'll get a different result because of different layout shifts caused by the different non-critical elements taking longer to load. Also, make sure you dock the Dev tools in a different window, so the page being tested has the full normal screen size without Dev tools .at the bottom etc.
- Your co-worker might be viewing the site on a different screen size, so there may be less CLS (cumulative layout shift) happening on their screen size, which is why the scores would be different.
Got a burning SEO question?
Subscribe to Moz Pro to gain full access to Q&A, answer questions, and ask your own.
Browse Questions
Explore more categories
-
Moz Tools
Chat with the community about the Moz tools.
-
SEO Tactics
Discuss the SEO process with fellow marketers
-
Community
Discuss industry events, jobs, and news!
-
Digital Marketing
Chat about tactics outside of SEO
-
Research & Trends
Dive into research and trends in the search industry.
-
Support
Connect on product support and feature requests.
Related Questions
-
What Schema would a Web design/development/seo ageny use and what is the schema.org link?
What Schema would a Web design/development/SEO Ageny use, and what is the schema.org link? I cannot for the life of me figure it out. ProfessionalService has been deprecated.
On-Page Optimization | | TiagoPedreira0 -
Would Renaming or HIding Posts With the Same Title Reduce My Spam Score?
On my blog (which is about writing), I have a recurring monthly feature where we all share excerpts of our work in progress. The title is always the same: "WIP Wednesday – Share What YOU Are Up To!" I've been doing this on the blog for about 4 years. Is the recurring title giving me a higher spam score? If so, will it help if I add the date on the end, as I've started to do? " WIP Wednesday – Share What YOU Are Up To! January 2020" etc.? Or would it help if I made all the posts from before 2020 private? Or does this actually have nothing to do with my spam score (which is 9%, and I'd like to bring it down)? Thanks!
On-Page Optimization | | bryndonovan0 -
Web app meta data - yes or no?
Hi there, Are there any guidelines for using meta data for web apps, specifically meta titles and meta descriptions?
On-Page Optimization | | AllenJaffe0 -
Web designer doesn't see duplicate pages or issues??? Help!
I have a website that has duplicate pages, and I want to fix them. I told my web guy and his response was: "we do not see any issues on our end. It is not hurting any ranking in the 3 major searches. We have no duplicate pages" Here's the site http://www.wilkersoninsuranceagency.com/ Here's the home page again http://www.wilkersoninsuranceagency.com/index.php Here's what MOZ say: Please see attached image. I'm not sure what to tell him, as i'm not a web person, but MOZ is telling me we have issues on the site and I feel like they should be fixed?? 7QWkVU0 tYCjV
On-Page Optimization | | MissThumann0 -
Do these items affect Google ranking or Quality Score?
Hi community, After my first crawl of a site that I'm working to improve the SEO on, I find that I have about 500 issues regarding missing Alt Text and Title text for images on my site, as well as about 175 issues with regard to duplicate meta description, missing meta descriptions, and too short/too long meta descriptions. My client is not sure it matters to fix these items and only wants to do so if they have an affect on Google ranking or Quality Score. Does anyone know? Thanks!
On-Page Optimization | | gataninc0 -
How long should I leave an existing web page up after a 301 redirect?
I've been reading through a few of blog posts here on moz and can't seem to find the answer to these two questions: How long should I leave an existing page up after a 301 redirect? The page old page is no longer needed but has pretty high page authority. If I take the old page down—the one that I'm redirecting from—immediately after I set up the 301 redirect, will link juice still be passed to the new page? My second question is, right now, on my index.html page I have both a 301 redirect and a rel canonical tag in the head. They were both put in place to redirect and pass link equity respectively. I did this a couple years back after someone recommended that I do both just to be safe, but from what I've gathered reading the articles here on moz is that your supposed to pick one or the other depending on whether or not it's permanent. Should I remove the rel conanical tag or would it be better to just leave it be?
On-Page Optimization | | ScottMcPherson0 -
Schema for Web/SEO Service Pages
I was thinking about setting up my services pages for SEO and Web design with Schema code for a product. Is this a good idea? Has anyone done it?
On-Page Optimization | | NeilBelliveau0 -
Is there any problem up-dating changes on our web say 2 0r 3 time in one day or sould it be 2-3 times a month
Is there any problem up-dating changes on our web site say 2 or 3 time in one day or sould it be 2-3 times a month. Thanks Trish
On-Page Optimization | | waynecoll0