🆚 css-vars-ponyfill vs. Facebook SDK
- 📈 Facebook SDK is much more popular than css-vars-ponyfill.
- 🌍 Facebook SDK is more popular in all countries.
Statistics based on 3.4M+ analyzed websites. About this data
Type
JavaScript library
JavaScript library
About
Client-side support for 
CSS custom properties (aka "CSS variables") in legacy and modern browsers.
Facebook SDK is a library that provides client-side tools for Social Plugins, Login, and Graph API calls.
It enables loading Social Plugins such as 
Like, Share, or Comments buttons, initiating Facebook Login with configurable permissions, and opening dialogs for sharing, fetching and updating data via Graph API endpoints.
Headquarters
Menlo Park, California, United States
Pricing
Free ✔️Open source
Free ✔️
Categories
JavaScript Libraries › Rank #141
JavaScript Libraries › Rank #3
Popularity
Determined by the number of sites using each technology.
The Facebook SDK JavaScript library is 80 times more popular than css-vars-ponyfill.
Total websites
Market share
JavaScript Libraries
Popularity by country
Determined by the number of sites detected from each country.
Facebook SDK is more popular than css-vars-ponyfill in all countries.
United States
Japan
United Kingdom
Brazil
Italy
Australia
Germany
Poland
France
Spain
Awards
- ⬆️ 77th most popular in Austria in the JavaScript Libraries category.
- ⬆️ 87th most popular in New Zealand in the JavaScript Libraries category.
- ⬆️ 88th most popular in Finland in the JavaScript Libraries category.
- ⬆️ 101st most popular in Canada in the JavaScript Libraries category.
- ⬆️ 104th most popular in Denmark in the JavaScript Libraries category.
- 🥈 Second most popular in Poland in the JavaScript Libraries category.
- 🥈 Second most popular in Vietnam in the JavaScript Libraries category.
- 🥈 Second most popular in Ukraine in the JavaScript Libraries category.
- 🥈 Second most popular in the Czech Republic in the JavaScript Libraries category.
- 🥈 Second most popular in Hungary in the JavaScript Libraries category.
Popularity by domain category
Determined by the number of sites in each category.
Facebook SDK is more popular than css-vars-ponyfill in all market segments.
Business
Online Shopping
Education/Reference
Blogs/Wiki
Marketing/Merchandising
Entertainment
Internet Services
General News
Health
Fashion/Beauty
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
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X for Websites
LinkedIn Platform
Meta company profile🗃️ 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 3,406,701 websites.
- Statistics were last calculated on .
- For more details, see our methodology and disclaimer.