Questions tagged [lighthouse]

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How Google Lighthouse check Speed index time

I am tuning the performance of a wordpress website. So I use the Google Lighthouse, which is built in function of browser console, to check the score the website. The homepage is an article page with ...
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1 vote
2 answers
26 views

Would using Bootstrap heading classes over semantic heading tags negatively impact SEO?

Will heading classes over semantic heading tags negatively impact SEO? Bootstrap Heading classes: <p class="h1">Heading 1</p> Semantic HTML Tags: <h1>Heading 1</h1>
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2 votes
3 answers
102 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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1 vote
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Google Lighthouse and SVGs with preserveAspectRatio="none"

Google Lighthouse has a red triangle error which significantly impacts the Best Practices score: Displays images with incorrect aspect ratio I can understand why this would be regarded as an error ...
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1 vote
1 answer
70 views

Is Google's Lighthouse Audit No Longer Working For The Latest Version Of Windows 10?

Lighthouse audit is no longer working for me. Are you having the same issue too? Lighthouse audit is no longer working within Google chrome's browser for me. It freezes about 90% through. My boss at ...
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3 votes
0 answers
115 views

CSP added but Lighthouse flags it as missing

Ive added a CSP via PHP but Lighthouse is still saying 'Ensure CSP is effective against XSS attacks' Heres my CSP, is there something missing or set incorrectly that could be causing Lighthouse to ...
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0 answers
23 views

Not showing Consent Managament Platform (CMP) banner on PageSpeed and Lighthouse is allowed?

I see that most of the famous CMP like Cookiebot are not showing when a website is scanned using Google PageSpeed or Lighthouse. Is this behaviour allowed by Google? It's not cloaking? In CookieBot ...
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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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2 votes
1 answer
46 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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1 vote
2 answers
257 views

Google Lighthouse Contrast Ratio - bad contrast ratio but it's not

I have a site where chrome dev tools light house is saying stuff does not have a sufficient contrast ratio: Steps: Go to https://curtainrodclub.net/product/architrac-94001-overlap-master-left/ Open ...
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1 vote
0 answers
33 views

Why does the Lighthouse API show occasional spikes in total blocking time?

I am using the Lighthouse API to get page load metrics for my site. I'm getting some huge outliers for my Total Blocking Time (TBT) metrics. Since the results are a little different with each request, ...
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6 votes
2 answers
6k views

Lighthouse says "Links are not crawlable" on the "Skip to content" link

When running a Lighthouse check on my site, I received the following error under SEO: Links are not crawlable Search engines may use href attributes on links to crawl websites. Ensure that the href ...
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1 vote
1 answer
26 views

Resource hints in HTTP header not detected in Lighthouse

I have resource hints in the document head that are detected by the browser and in Lighthouse. However, if I move them to the http header (so they can be read by the browser without parsing the ...
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2 votes
1 answer
113 views

Can I rely on Google Lighthouse reports (especially for mobile sites)?

We have started to use Lighthouse to track the improvements we make to our sites. While this seems to work quite well for desktop sites, i.e. we see the values improve over time and as we make changes,...
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  • 143
1 vote
1 answer
78 views

Does accessibility (assessed by tools like lighthouse) affect SEO

Google lighthouse report has separate sections for SEO and accessibility. And I guess there could be other tools as well that provide feedback on accessibility metrics (like font background contrast). ...
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