🆚 Lazysizes vs. Rocket Loader

Compare technologies based on real-world usage data *

Type

JavaScript library
Performance technology

About

Lazysizes is a fast lazy loader library for images, iframes, and scripts/widgets.

CloudFlare Rocket Loader prioritizes website content by delaying loading of all JavaScript until after rendering.

Headquarters

Berlin, Germany
San Francisco, California, United States

Website

Pricing

Free ✔️Open source
Free version ✔️
Pro$25/month
Business$250/month
EnterpriseCustom

Categories

JavaScript Libraries › Rank #29
Performance › Rank #6
Performance › Rank #9

Popularity

Determined by the number of sites using each technology.

The Lazysizes JavaScript library is 2.4 times more popular than Rocket Loader.
Total websites

Market share

Performance

Popularity by country

Determined by the number of sites detected from each country.

Lazysizes is more popular in the United States, Japan, and the United Kingdom, while Rocket Loader is more popular in Indonesia, Turkey, and Israel.
United States
Japan
United Kingdom
Germany
Italy
France
Spain
Australia
India
Brazil

Awards

Popularity by domain category

Determined by the number of sites in each category.

Lazysizes is more popular among sites focused on business, online shopping, and marketing and merchandising, while Rocket Loader is more commonly used on Internet services, games, and technical, business forums sites.
Business
Online Shopping
Marketing/Merchandising
Blogs/Wiki
Internet Services
Education/Reference
Entertainment
Travel
General News
Fashion/Beauty

Top sites

Top-ranked sites that use these technologies.

Name
Rank
View more ➝
Name
Rank
caliente.mx
#526
xnxx.health
#833
p**none.com
#834
View more ➝

See also

* According to recent studies, many of online reviews are fake.
When making your decision, it is better to rely on data that cannot be falsified.
Our service evaluates the popularity of technologies by the number of websites using them.

Statistics were last calculated on .
For details, see our methodology and disclaimer.