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Questions tagged [lighthouse]

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2 votes
1 answer
309 views

Why is my Largest Contentful Paint (LCP) score higher than my Speed Index (SI) score?

I'm doing some work trying to improve my site's speed. I am running multiple Lighthouse tests and using the average to measure improvements I make. I have a question about LCP and Speed Index. As I ...
MeltingDog's user avatar
  • 1,363
0 votes
0 answers
25 views

Why am I getting poorer Lighthouse Performance scores after minimising my CSS?

I'm trying to improve my site's speed. I have an isolated development version of the website hosted on a staging server and am running Lighthouse tests against it (I take the average scores of 5 ...
MeltingDog's user avatar
  • 1,363
0 votes
1 answer
53 views

Google Lighthouse flags issues that would be penalised for SEO. Can these be false positives?

Summary I have a site that is created using the Elementor Page Builder in Wordpress. Elementor allows for us to use certain widgets such as: Button Widgets (used for several button links) Toggle ...
Shafik Walakaka's user avatar
0 votes
1 answer
62 views

CLS issue only for PageSpeed Insights

Hi get a 99 score in lighthouse and also in PageSpeed Insights BUT PageSpeed Insights gives me ( for desktop ) a FAIL because it thinks I have a 0,67 CLS issue I did test it with GTmetrix, webvitals ...
al404IT's user avatar
  • 177
0 votes
0 answers
65 views

SERP Dropping majorly - Lighthouse SEO Questionmark

Before last week when I checked my website in PageSpeed Insights I had a SEO score of about 92. All of a sudden there is a question mark at the SEO score and my Google ranking is dropping from 5th to ...
Witter Gebit's user avatar
1 vote
1 answer
108 views

Why is my server 302-redirecting Lighthouse away from my robots.txt file, but not when I visit it with a web browser?

This is my robots.txt file: User-agent: * Disallow: /user/ Disallow: /user/* Disallow: /home/* Disallow: /adminpanel/* Disallow: /Valorant_Guess/* Disallow: /Leagueoflegends_Guess/* Disallow: /...
szocel's user avatar
  • 41
2 votes
0 answers
490 views

Why is the Chrome-Lighthouse user agent hitting my server every day?

Every day, I find lines like this one in my access.log file: 74.125.210.42 - - [08/Mar/2023:08:11:13 +0100] "GET /fr/ HTTP/2.0" 200 24160 "-" "Mozilla/5.0 (Macintosh; Intel ...
zindigi hachim no ippo's user avatar
3 votes
1 answer
652 views

Why does PageSpeed Insights ask me to use next generation images when I am using Cloudflare Polish?

When I test my site on Google's PageSpeed Insights, it reports that some of the images should be optimized by converting them to .webp or .avif format. However, I am already using the Cloudflare ...
Guy's user avatar
  • 211
3 votes
0 answers
39 views

Chrome Lighthouse result for LCP don't match the Performance tab values

I'm running my app on localhost and I've been experiment with the Lighthouse tool to implement some optimizations. It's a statically built NextJS app, so it should be pretty fast. This is the result I ...
cbdeveloper's user avatar
2 votes
0 answers
327 views

How to add something crawlable to JavaScript links in order to satisfy Google Lighthouse

I'm doing some Google lighthouse analysis on my site and the tool is complaining about our "add to cart" links. We use a pre-fab PayPal cart system called Vibracart, which is great but is ...
Raseone's user avatar
  • 61
3 votes
1 answer
3k views

How to solve "Links do not have descriptive text" for Read More links that already have enough description in the context?

It's prevalent to have sections like features, or recent posts or our skills on a website's home page and these sections have short explanations and then usually have a Read More link: This image ...
Saeed Neamati's user avatar
3 votes
1 answer
183 views

When running Lighthouse audit of website on Chrome dev tools, turning on 'legacy navigation' really messes up website performance scores

When running Lighthouse audit of website on chrome dev tools, turning on 'legacy navigation' really messes up website performance scores. It brings performance score down by 10-15 points on some URLs ...
Himanshu Ragtah's user avatar
2 votes
0 answers
27 views

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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2 votes
2 answers
83 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>
user avatar
3 votes
3 answers
860 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 ...
Eurekahello's user avatar
2 votes
0 answers
86 views

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 ...
Rounin's user avatar
  • 2,345
1 vote
1 answer
339 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 ...
Leonard Treman's user avatar
5 votes
1 answer
345 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 ...
user3914769's user avatar
5 votes
3 answers
6k 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 ...
Vlad Otrocol's user avatar
2 votes
1 answer
108 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, ...
Jake 1986's user avatar
  • 863
1 vote
2 answers
1k 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 ...
user2434674's user avatar
2 votes
0 answers
46 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, ...
Jake 1986's user avatar
  • 863
8 votes
2 answers
17k 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 ...
Patrick Kenny's user avatar
1 vote
1 answer
43 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 ...
Magento Developer's user avatar
2 votes
1 answer
257 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,...
jfix's user avatar
  • 185
1 vote
1 answer
154 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). ...
Kannan's user avatar
  • 2,343