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0
votes
1
answer
42
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Lighthouse Mobile reports oversized image at 100% display scaling but not at 150%
When I run Lighthouse (Mobile) on a device with display scaling set to 150%, no warning is shown.
However, when I run it with display scaling set to 100%, the following warning appears:
This image ...
0
votes
0
answers
31
views
CL x EL JWT Authentication issue
I am using Kurtosis for running a project
I start with running EL client (geth) then i add lighthouse (lighthouse)
I mount to each servoce the same jwt file.
But i get this error in lighthouse:
[...
2
votes
1
answer
216
views
Picture's srcset and sizes seem to be fine, but PageSpeed loads a wrong image
Here is the code:
<picture>
<source srcset="https://www.shop-naturpur.de/media/image/opc/xs/yogi-tea-aktion2.webp 182w,
https://www.shop-naturpur.de/media/image/opc/...
0
votes
0
answers
72
views
performance optimization in NextJS
I have 10k+ lines of global CSS in a NextJS project. Does this affect the LCP, as in mobile? I have tried a lot of optimizations, like adding priority for LCP images, adding lazy loading for other ...
0
votes
0
answers
107
views
Lighthouse user-flow with Puppeteer always forces mobile emulation even when desktop config is set
I’m running a Lighthouse user-flow using Puppeteer to measure performance on our web app.
When I execute my script with just Puppeteer, the app loads in desktop view exactly as expected.
But whenever ...
-1
votes
0
answers
55
views
How I edit nft metadata in lighthouse IPFS after minting?
enter image description here
So i want to change image url to gateway link
I want to change
"image": "0.png",
to
"image": "https://gateway.lighthouse.storage/ipfs/...
3
votes
1
answer
70
views
How to prevent a JPEG UHD (2MB) with progressive loading (blur-up) from affecting the LCP in Angular 19?
Constraint: The image must be ultra-high quality—the challenge is to handle heavy images (at least 4K resolution and high color fidelity).
Context: I am developing an Angular (v19.2, 2025) desktop ...
0
votes
2
answers
206
views
automating performance test using lighthouse and connecting to CI/CD pipeline
I want to connect lighthouse performance testing concept to a CI?CD pipeline and automate it to run every month
Can we automate performance testing using lighthouse dev tool to provide report by ...
0
votes
1
answer
49
views
Does PageSpeed Insights measure the browser cache during performance testing?
Does PageSpeed Insights improve the performance score using the browser cache during performance testing?
-1
votes
1
answer
119
views
How to Detect If the Current Visitor is PageSpeed Insights or Lighthouse
I want to selectively disable Google Analytics (GA) when the page is accessed by PageSpeed Insights or Lighthouse to improve performance scores. Is there a reliable way to determine if the current ...
0
votes
1
answer
132
views
Poor performances with Prestashop Elementor
my client has a poor performance score on PageSpeed (between 35 and 45). He is obviously aiming for higher scores (beyond 90) and therefore this score is a problem.
His website is on Prestashop 1.7 ...
0
votes
1
answer
77
views
Gatsby Script API increases total blocking time
I used https://pagespeed.web.dev/ today and was surprised that my website has only a performance score of 64. Running it in my browser, on the hosted site, in an incognito tab it's always between 95-...
0
votes
1
answer
2k
views
How to Fix H1 tag Largest Contentful Paint (LCP) Issue in Angular App as Reported by Lighthouse?
I am working on an Angular application, and Lighthouse is reporting a very high Largest Contentful Paint (LCP) time for my app. Here are the details:
LCP Element:
<h1 class="maintitle_withicon&...
0
votes
1
answer
132
views
What do the scores mean in `lighthouse-ci`?
We are using lighthouse-ci to run automated Lighthouse checks on our site after a CircleCI build. Our lighthouserc.json config is pretty basic, mostly using the defaults:
{
"ci": {
&...
0
votes
1
answer
56
views
Lighthouse is not writing any files
I'm trying to generate lighthouse report using cli. I'm using this command locally:
lhci autorun
And this is working absolutely fine. It is generating reports as it should.
Then I'm trying to use ...