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Category: JavaScript libraries

LazySizes

Based on 246 real audits

44
Avg. Performance
87
Avg. Accessibility
87
Avg. Best Practices
92
Avg. SEO
64
Avg. Security
74
Avg. Composite
44 /100
Avg. Performance
427 ms
Avg. TTFB
74 /100
Avg. Composite
246
Sites Audited

How LazySizes sites compare

LazySizes sites tend to score below average on performance (44/100), compared to the global average of 53/100.

Recent Audits

See all 241 websites using LazySizes →
SitePerformanceGradeAudited
mediasetitalia.com35C2026-07-10
parspack.com35C2026-07-04
bitbeans.com28C2026-06-30
lovaco.com32B2026-05-27
bb.com.br27C2026-05-25
Diehl.com65B2026-05-17
Mainstreetestatesales.com54B2026-05-10
Webnetz.de69B2026-05-10
Magicandcards.com36C2026-05-09
www.endisbarbers.ch17D2026-05-07

Commonly Used With

Sites that use LazySizes also commonly use:

Open Graph Miscellaneous 227Google Search Console Analytics 193Google Tag Manager Tag managers 187jQuery JavaScript libraries 183Google Analytics Analytics 150Microsoft Analytics 125Cloudflare CDN 124core-js JavaScript libraries 124Google Font API Font scripts 96HSTS Security 95

Compare with...

LazySizes vs Open GraphLazySizes vs Google Search ConsoleLazySizes vs Google Tag ManagerLazySizes vs jQueryLazySizes vs Google AnalyticsLazySizes vs MicrosoftLazySizes vs CloudflareLazySizes vs core-jsLazySizes vs Google Font APILazySizes vs HSTS

FAQ

What is the average Lighthouse performance score for LazySizes sites?
Based on 246 real audits, LazySizes sites score an average of 44/100 on Lighthouse performance.
How does LazySizes compare on web security?
LazySizes sites score an average security grade of 64/100 in BeaverCheck audits.
What is the average page load time for LazySizes websites?
The average Time to First Byte (TTFB) for LazySizes sites is 427ms based on 246 audits.
How can I improve my LazySizes site's performance?
Run a free audit on BeaverCheck to get specific recommendations for your LazySizes site. Common issues include render-blocking resources, unoptimized images, and missing caching headers.

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