LazySizes
LazySizes is a JavaScript library used to delay the loading of images (iframes, scripts, etc) until they come into view.
- Indexed sites
- 3,039
- Share of Performance
- 13%
LazySizes vs Priority Hints
Priority Hints is the more common of the two in our index: it runs on 21,510 websites against 3,039 for LazySizes, and 1,443 sites use both. Counts come from real scans, not vendor claims.
- 3,039
- 21,510
Priority Hints
Priority Hints exposes a mechanism for developers to signal a relative priority for browsers to consider when fetching resources.
- Indexed sites
- 21,510
- Share of Performance
- 89%
Well-known sites using it
All 21,510 sitesUsed together
1,443 sites run both LazySizes and Priority Hints. That is 47% of the sites using LazySizes, the smaller of the two.
More comparisons
- Azure Monitor vs Priority HintsPerformance
- Autoptimize vs Priority HintsPerformance
- Azure Monitor vs LazySizesPerformance
- Autoptimize vs LazySizesPerformance
- Autoptimize vs Azure MonitorPerformance
Want to know which one a particular site uses? Look it up and see its whole stack, or compare two sites side by side.