🆚 Fastly Polyfill vs. ImagesLoaded
- 📈 ImagesLoaded is much more popular than Fastly Polyfill.
- 🌍 ImagesLoaded is more popular in all countries.
Statistics based on 3.6M+ analyzed websites. About this data
Fastly Polyfill
ImagesLoadedType
JavaScript library
JavaScript library
About
Fastly Polyfill is a service that reads the User-Agent header of each request and returns polyfills appropriate for the requesting browser.
ImagesLoaded is an open-source 
JavaScript library that detects when images and 
CSS background images have finished loading, allowing code to run only after loading is complete.
It supports both vanilla JavaScript and 
jQuery, detects images within descendant elements, and reports loading progress and failures.
Headquarters
Alexandria, Virginia, United States
Pricing
Free ✔️ Open source
Free ✔️ Open source
Categories
JavaScript Libraries › Rank #101
JavaScript Libraries › Rank #5
Popularity
Determined by the number of sites using each technology.
The ImagesLoaded JavaScript library is 31 times more popular than Fastly Polyfill.
Total websites
Market share
JavaScript Libraries
Popularity by country
Determined by the number of sites detected from each country.
ImagesLoaded is more popular than Fastly Polyfill in all countries.
United States
Germany
United Kingdom
Spain
Italy
France
Australia
Brazil
India
Netherlands
Awards
- ⬆️ 73rd most popular in New Zealand in the JavaScript Libraries category.
- ⬆️ 76th most popular in Canada in the JavaScript Libraries category.
- ⬆️ 79th most popular in Norway in the JavaScript Libraries category.
- ⬆️ 80th most popular in Japan in the JavaScript Libraries category.
- ⬆️ 81st most popular in Australia in the JavaScript Libraries category.
- 🥉 Third most popular in Germany in the JavaScript Libraries category.
- 🥉 Third most popular in Spain in the JavaScript Libraries category.
- 🥉 Third most popular in France in the JavaScript Libraries category.
- 🥉 Third most popular in South Africa in the JavaScript Libraries category.
- 🥉 Third most popular in Austria in the JavaScript Libraries category.
Popularity by domain category
Determined by the number of sites in each category.
ImagesLoaded is more popular than Fastly Polyfill in all market segments.
Business
Marketing/Merchandising
Blogs/Wiki
Education/Reference
Online Shopping
Internet Services
Travel
Entertainment
Non-Profit/Advocacy/NGO
Health
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
Polyfill
Modernizr
Regenerator
Babel
jQuery UI Touch Punch
MooTools🗃️ About This Data
- We evaluate the popularity of technologies based on the number of websites where we detect their usage.
- Technologies without a detectable web footprint, and those we do not track, are not reflected in the calculated market share.
- This report is based on the analysis of 3,604,716 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.