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https://www.midjourney.com/imagine
45 67 78 91
Performance Accessibility Best SEO
Practices
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45
Performance
Values are estimated and may vary. The performance score
is calculated directly from these metrics. See calculator.
0–49 50–89 90–100
METRICS Expand view
First Contentful Paint Largest Contentful Paint
1.3 s 5.1 s
Total Blocking Time Cumulative Layout Shift
480 ms 0
Speed Index
3.5 s
View Treemap
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Show audits relevant to: All FCP LCP TBT CLS
DIAGNOSTICS
Reduce JavaScript execution time — 1.9 s
Minimize main-thread work — 4.0 s
Largest Contentful Paint element — 5,060 ms
Preload Largest Contentful Paint image — Potential savings of 640 ms
Eliminate render-blocking resources — Potential savings of 90 ms
Reduce unused JavaScript — Potential savings of 771 KiB
Properly size images — Potential savings of 1,403 KiB
Page prevented back/forward cache restoration — 2 failure reasons
Serve images in next-gen formats — Potential savings of 955 KiB
Serve static assets with an efficient cache policy — 19 resources found
Avoid serving legacy JavaScript to modern browsers — Potential savings of 7 KiB
Reduce unused CSS — Potential savings of 33 KiB
Avoid enormous network payloads — Total size was 6,171 KiB
Avoid long main-thread tasks — 16 long tasks found
Minimize third-party usage — Third-party code blocked the main thread for 200 ms
Initial server response time was short — Root document took 390 ms
Avoids an excessive DOM size — 579 elements
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User Timing marks and measures — 9 user timings
Avoid non-composited animations — 5 animated elements found
Avoid chaining critical requests — 2 chains found
More information about the performance of your application. These numbers don't directly affect the Performance score.
PASSED AUDITS (18) Show
67
Accessibility
These checks highlight opportunities to improve the accessibility of your
web app. Automatic detection can only detect a subset of issues and does
not guarantee the accessibility of your web app, so manual testing is also
encouraged.
ARIA
[aria-*] attributes do not match their roles
These are opportunities to improve the usage of ARIA in your application which may enhance the experience for users of assistive
technology, like a screen reader.
NAMES AND LABELS
Buttons do not have an accessible name
Image elements do not have [alt] attributes
Links do not have a discernible name
These are opportunities to improve the semantics of the controls in your application. This may enhance the experience for users of
assistive technology, like a screen reader.
INTERNATIONALIZATION AND LOCALIZATION
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<html> element does not have a [lang] attribute
These are opportunities to improve the interpretation of your content by users in different locales.
BEST PRACTICES
Touch targets do not have sufficient size or spacing.
These items highlight common accessibility best practices.
NAVIGATION
The page contains a heading, skip link, or landmark region
These are opportunities to improve keyboard navigation in your application.
ADDITIONAL ITEMS TO MANUALLY CHECK (10) Show
These items address areas which an automated testing tool cannot cover. Learn more in our guide on conducting an accessibility
review.
PASSED AUDITS (15) Show
NOT APPLICABLE (35) Show
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Best Practices
GENERAL
Uses deprecated APIs — 1 warning found
Issues were logged in the Issues panel in Chrome Devtools
Detected JavaScript libraries
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Missing source maps for large first-party JavaScript
TRUST AND SAFETY
Ensure CSP is effective against XSS attacks
PASSED AUDITS (11) Show
NOT APPLICABLE (2) Show
91
SEO
These checks ensure that your page is following basic search engine
optimization advice. There are many additional factors Lighthouse does not
score here that may affect your search ranking, including performance on
Core Web Vitals. Learn more about Google Search Essentials.
CONTENT BEST PRACTICES
Image elements do not have [alt] attributes
Format your HTML in a way that enables crawlers to better understand your app’s content.
ADDITIONAL ITEMS TO MANUALLY CHECK (1) Show
Run these additional validators on your site to check additional SEO best practices.
PASSED AUDITS (7) Show
NOT APPLICABLE (2) Show
Captured at Jan 4, 2025, 3:42 Emulated Desktop with Single page session
AM GMT+3 Lighthouse 12.2.1
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Initial page load Custom throttling Using Chromium 131.0.0.0 with
devtools
Generated by Lighthouse 12.2.1 | File an issue
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