Alc.co.jp 英語学習・TOEIC対策・英辞郎 on the WEB | アルク
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User Loading Experience
First Input Delay
First Contentful Paint
Cumulative Layout Shift
Largest Contentful Paint
Metrics
Speed Index8/100 4.2 s
Largest Contentful Paint12/100 4.5 s
Time to Interactive19/100 6.8 s
First Contentful Paint48/100 1.6 s
Cumulative Layout Shift98/100 0.061
Total Blocking Time100/100 20 ms
Should Fix (20)
Opportunities
These suggestions can help your page load faster. They don't directly affect the Performance score.
Diagnostics
More information about the performance of your application. These numbers don't directly affect the Performance score.
Passed Audits (10)

Should Fix (1)
Content Best Practices
Format your HTML in a way that enables crawlers to better understand your app’s content.
Passed Audits (10)

Should Fix (5)
General
Trust and Safety
Browser Compatibility
Passed Audits (9)

Should Fix (10)
PWA Optimized
Installable
Fast and reliable
Passed Audits (3)

Should Fix (6)
Names and labels
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.
Tables and lists
These are opportunities to to improve the experience of reading tabular or list data using assistive technology, like a screen reader.
Contrast
These are opportunities to improve the legibility of your content.
Passed Audits (12)

Should Fix (7)
Passed Audits (3)
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