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Questions tagged [core-web-vitals]

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To pass Core web vitals you need a website close to amp level [closed]

So Google is rolling out AMP (Accelerated Mobile Pages) but increasing the pressure on CWV with new experimental metrics. To pass CWV, you will need to render a page almost identical to amp level. Do ...
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  • 158
1 vote
1 answer
30 views

How does CWV pass P75 threshold if FID & CLS needs interaction from the user?

How does Core web vitals pass the 75% threshold if FID & CLS needs interaction from the user? For example: If we got data for 1K page views with LCP and only 100 page views were recorded for FID ...
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  • 158
1 vote
1 answer
40 views

How does a "28 day window" work for core web vitals? [closed]

I'm lost in understanding the 28-day window for core web vitals. When did the 28-day collection period start for CWV? Then, if a site has fluctuations on a metric between the 28-day window. For ...
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  • 158
1 vote
2 answers
78 views

Lighthouse in Chrome vs PageSpeed Insights and Core Web Vital Metrics

From what I understand, Core web vital assessment (the top section of PageSpeed Insight result) uses field data and the lighthouse section uses lab data. And the core web vital assessment is what ...
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3 votes
1 answer
21 views

Does page weight matter if your Core Web Vitals scores are good?

At my company, we've done an excellent job showing people the value of using user-based metrics like the Core Web Vitals for performance testing. But this has also become a bit of a two-edged sword. ...
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  • 856
3 votes
1 answer
73 views

Is Largest Contentful Paint (LCP) measured only above the fold?

A lot of sources mention that LCP is measured only above the fold, and stops measurements after a user action like scroll or key press. Though, I am able to get LCP for an image which is lazy-loaded ...
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1 vote
0 answers
15 views

Any way to identify page or device level Cumulative Layout Shift (CLS)

Have been trying to improve my sites mobile CLS score for the SEO benefits that it may or may not bring. But getting discrepencies with tests that I can run vs real world data that google uses. https:/...
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1 vote
1 answer
54 views

Core Web Vitals - Field data difference Mobile vs Desktop

I am observing a strange problem related to Core Web Vitals, I have same website for both mobile and desktop(same server/same page/same DOM size) but I when I look into search console I get different ...
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4 votes
1 answer
111 views

Core web vitals - LCP is being recounted on element outside viewport

I have been trying to control LCP on my website but unfortunately a strange phenomenon is continuously occurring, An element which is not in viewport is considered to be an LCP. Opposite to that ...
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1 vote
0 answers
30 views

where does Google test core web vitals from?

Is it possible to know where Google tests core web vitals from? I ask so that I can prepare our Cloudflare cache for their tests. I say this because ahrefs.com runs its site audit from France, and was ...
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  • 1,634
3 votes
1 answer
70 views

Which is more important in terms of SEO? TTFB or page fully loaded speed?

In terms of SEO, which is more important? Time to First Byte or page load speed? I ask because with Cloudflare our TTFB is 25% faster than without, but the time to fully load the page and its ...
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  • 1,634
3 votes
1 answer
109 views

How to improve CLS. Chrome Lighthouse shows GREEN but GSC shows RED?

I have no Idea what is going on. The lighthouse on different devices shows my page CLS 0.002, but when I go to my Google Search Console -> core web vitals the CLS is in RED ZONE >0.25. I ...
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  • 105
3 votes
1 answer
73 views

Get more insights about LCP and CWV stats from Google page Insights?

When I look at LCP stats below on google page insights, I see 34% request are in green, 30% in orange, and 35% in red. I want to further deep dive into it how some requests are in good range and some ...
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  • 177
1 vote
3 answers
2k views

Why does Google Page Experience show 0% Good URLs when most of the URLs have green scores in Pagespeed for FCP, LCP, FID etc.?

The website has around 300 URLs. There are no Mobile Usability Issues reported in the google search console. There are no Security Issues reported in the google search console. There are no Ad ...
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4 votes
0 answers
27 views

Why does Google Page Experience show 0% Good URLs when most of the URLs have green scores in Pagespeed for FCP, LCP, FID etc.? [duplicate]

The website has around 300 URLs. There are no Mobile Usability Issues reported in the google search console. There are no Security Issues reported in the google search console. There are no Ad ...
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1 vote
1 answer
123 views

PageSpeed Insights Field Data Won't Pass Core Web Vitals Assessment!

As you know, Google introduced Core Web Vitals in the end of April 2021 and as of May, the CWV became a ranking factor for Google. Our website was one of those who hit it hard. We lost like 50-70% of ...
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2 votes
1 answer
141 views

Does core web vitals field data consider network speed?

Google measures core web vitals based on real-world metrics (like when users visit pages in their Chrome browsers). But what if a user browses from a location where network connection is poor? Does ...
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  • 2,233
2 votes
1 answer
45 views

Does Lighthouse sometimes miss preload links if non-preload link is also present?

I added preload links to my site for two CSS files, and this was by far the biggest improvement opportunity listed in the Lighthouse audit. I added the preload links, and ran a new Lighthouse audit, ...
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  • 801
3 votes
3 answers
206 views

[Google Search Console]: What might account for a same page having > 0% but < 100% of mobile search impressions having "good page experience"?

I have a site that has "99.9% URLs with a good page experience" (on mobile) and no issues with core web vitals, mobile usability, security, or HTTPS (all URLs pass on all fronts). This has ...
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2 votes
1 answer
58 views

Major CLS issue - Can´t locate it at all - Core Web Vitals - All Pages effected

since a few weeks already I am trying to fix my CLS issues. My sitemap contains of 150 single pages in total. All of those 150 pages are affected by BOTH the Mobile and Desktop CLS issue (>0.25 &...
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  • 21
2 votes
1 answer
50 views

Google core web vital latest release impact on ranking?

Here is the recent timeline of keyword ranking of my site On 12th May , my site was ranked number one on 1500 keywords On 20th May , it ranked number one on 1900 keywords. Rank upgraded. On 2nd June, ...
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  • 177
0 votes
0 answers
16 views

Lost keywords ranking with recent google Core web release? [duplicate]

Recently in last 15 days we have started loosing number one ranking in large number of keywords to our competitors. Probably it can be because of recent core web vitals release by google. Not sure. ...
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  • 177
2 votes
1 answer
47 views

Google ranking based on core web vitals or six web vitals?

I use the google page insight https://developers.google.com/speed/pagespeed/insights/ to measure the perf metrics about my site. I see the overall score comes out to be based on six web vitals FCP SI ...
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  • 177
1 vote
1 answer
49 views

SEO Affected by Sizes Attribute in Images

If we set sizes="(max-width: 450px) 50vw") of the image but later we will expand this image to full width. Will google penalize us for it as we expanded the image to 100vw but told Google to ...
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0 votes
1 answer
60 views

How to remove CLS on a website that contains ads

I've read all the documentation regarding CLS and what causes websites to have CLS. I'm having a tough time figuring out what is causing the CLS for the users. And how to stop the CLS for those given ...
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2 votes
1 answer
53 views

Core Web Vitals (CLS and LCP) errors for a client-rendered Single Page Application (built with React + Firebase)

I have a SPA (single page website) build with React + Firebase and I've been getting these Core Web Vitals errors (see images below). My website is loading normally both on Desktop and Mobile. And I ...
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5 votes
1 answer
484 views

Will Google use field or lab data for ranking sites with core web vitals performance metrics?

Starting in May 2021, Google will begin using their Core Web Vitals metrics to inform search ranking. Will they will use field or lab data as the source of these metrics? Our site scores well on field ...
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4 votes
1 answer
151 views

Google Page Speed Insights shows zero cumulative layout shift with lab data, but poor CLS with field data

Lab data, as well as online analysis tools show my site to have 0 cumulative layout shift (CLS) issues in mobile and desktop versions. However, Google field data is showing 0.30 CLS issues, (Critical, ...
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