Websites Using LazySizes

LazySizes is a performance-monitoring tool. Site Stats Database detects it on the websites it tracks by analyzing each site's homepage, response headers, and DNS, and has currently found it on 30,997 websites.

Site Stats Database currently tracks 30,997 websites using LazySizes. That makes it the #2 most common performance out of 27 we detect in this category.

The most common are News, Community, and Design sites, and they are most common in United States and Spain. The breakdowns above show the full split across topics, markets, authority, and monetization, based on the 30,997 websites using LazySizes we track.

LazySizes is one of 27 performance options Site Stats Database detects. The alternatives section lists the others by adoption, and you can compare LazySizes head-to-head with any of them.

They have roughly average authority: the median LazySizes site has an Ahrefs Domain Rating of 25, about the same as the 28 median across all sites Site Stats Database tracks.

Over the last 2 months, the number we track grew 29% and their combined traffic rose 6.9%, based on Site Stats Database's month-by-month snapshots of this group.

Traffic estimates, organic keywords, and authority come from DataForSEO; Domain Rating comes from Ahrefs' public endpoint; and technology detection (including LazySizes) comes from Site Stats Database's own crawler, which inspects each site's HTML, headers, and infrastructure.

At least monthly. Traffic and rankings refresh every month, and technology detections are refreshed as sites are re-crawled, so this page always reflects the current 30,997 LazySizes websites.

Yes. The complete, filterable list of all 30,997 LazySizes websites, enriched with traffic history, authority, keywords, and the full tech stack, is available with a Site Stats Database plan.