React 15.2.1

React is an open-source JavaScript library for building user interfaces or UI components.

Disclaimer: The data used in this report is collected from the current VersionDB release (February 2026) containing a total of 12,727,168 domains. All statistics reflect this dataset and do not claim to represent all websites globally.

React 15.2.1 Complementary Technologies

Technologies frequently found with React 15.2.1.

Live React 15.2.1 Sites

3 Complementary Tech

17 Most Frequent Complementary Tech

Websites Using React 15.2.1

An unordered, non-ranked list generated from observed technology data.

Domain	Server Location	ASN	Crawl Date
sage.com	Unknown	Cloudflare, Inc.	February 13, 2026
activatecustomers.com	Unknown	Cloudflare, Inc.	February 8, 2026
rightanswers.com	🇺🇸 United States	Amazon.com, Inc.	February 6, 2026

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Top React 15.2.1 Identifiers

Who is using React 15.2.1 and where.

Countries

ASNs

Languages

TLDs

Most Frequent React 15.2.1 Identifiers and Complementary Tech

Most frequently encountered identifiers for React 15.2.1 and its complementary technologies.

Technology	Sites
Cloudflare	3
jQuery	3
Bootstrap	2
HSTS	2
cdnjs	2
Java	2
BootstrapCDN	1
Google Maps	1
Cloudflare Bot Management	1
Prism	1
jQuery Migrate	1
Google Analytics	1
jsDelivr	1
Clipboard.js	1
jQuery UI	1
PHP	1
Modernizr	1

Language	Sites
English	2
Latin	1