Skip to content

LazySizes vs Optimizely

Based on 4 and 8 real audits

View LazySizes details | View Optimizely details
MetricLazySizesOptimizelyWinner
Performance3228LazySizes
Accessibility9492LazySizes
Best Practices7883Optimizely
SEO9095Optimizely
Security6264Optimizely
TTFB58ms182msLazySizes
Composite6971Optimizely
Performance
LazySizes
32
Optimizely
28
Accessibility
LazySizes
94
Optimizely
92
Security
LazySizes
62
Optimizely
64
SEO
LazySizes
90
Optimizely
95
Composite
LazySizes
69
Optimizely
71

Optimizely outperforms LazySizes in 4 of 7 categories, with a stronger composite score (71 vs 69). LazySizes leads in performance, accessibility, TTFB.

FAQ

Which is faster, LazySizes or Optimizely?
Based on real BeaverCheck audits, LazySizes sites score higher on Lighthouse performance (32 vs 28 on average).
Which has better security, LazySizes or Optimizely?
Optimizely sites score higher on security analysis (64 vs 62 on average).
Should I choose LazySizes or Optimizely for my website?
Both platforms have trade-offs. LazySizes scores higher on performance while LazySizes may excel in other areas. Run a free BeaverCheck audit to compare specific metrics relevant to your use case.
Audit your own site

Send Feedback