🆚 BotD vs. Modernizr
- 📈 Modernizr is much more popular than BotD.
- 🌍 Modernizr is more popular in all countries.
- ⭐ BotD is particularly popular in the United Kingdom.
BotD
ModernizrType
About
BotD is an open-source 
JavaScript library that detects bots and automation tools directly in the browser without requiring a server component. It identifies headless browsers, automation frameworks, spoofed clients, virtual machines, and common search bots.
Modernizr is an open-source feature detection library that identifies browser support for 
HTML, 
CSS, and JavaScript features and allows websites to adapt accordingly.
It enables developers to detect supported browser features at runtime, apply progressive enhancement, load polyfills only when required, and provide fallbacks for unsupported features.
Headquarters
Pricing
Categories
Popularity
Determined by the number of sites using each technology.
Market share
Popularity by country
Determined by the number of sites detected from each country.
Awards
- ⭐ 5th most popular in Lebanon in the JavaScript Libraries category.
- ⭐ 6th most popular in Germany in the JavaScript Libraries category.
- ⭐ 6th most popular in Belgium in the JavaScript Libraries category.
- ⭐ 6th most popular in Luxembourg in the JavaScript Libraries category.
- ⭐ 7th most popular in Switzerland in the JavaScript Libraries category.
Popularity by domain category
Determined by the number of sites in each category.
Top sites
Top-ranked sites that use these technologies.
Compare alternatives
Technologies with similar characteristics.
FastClick
UAParser.js
Polyfill
Regenerator
Fastly Polyfill🗃️ 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.