Get all 3,873 companies using Day.js
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Companies
3,873
Top Country
US
Top Industry
E-Commerce
Adoption Insights
Day.js is used by 3,873 companies in our database, representing approximately 0.13% of all tracked websites. The most common industry using Day.js is E-Commerce, and adoption is strongest in US.
Top Countries Using Day.js
Top Industries Using Day.js
Companies Using Day.js
| Company | Domain | Country | Industry | Employees |
|---|---|---|---|---|
 Camunda | camunda.com | DE | Enterprise Software | 501-1000 |
 Clearlake Capital Group | clearlake.com | US | Business Development | 101-250 |
 ViiV Healthcare | viivhealthcare.com | GB | Biotechnology | 1001-5000 |
 Mercuryo | mercuryo.io | GB | Cryptocurrency | 101-250 |
 Arkansas State University | astate.edu | US | E-Learning | 1001-5000 |
 Tailor Brands | tailorbrands.com | US | Advertising | 51-100 |
 Applied Nutrition | appliednutrition.uk | GB | E-Commerce | 251-500 |
 Meowtel | meowtel.com | US | Internet | 11-50 |
 Kosli | kosli.com | US | DevOps | 11-50 |
 Arkema | arkema.com | FR | Industrial | 10001+ |
Top Alternatives to Day.js
Other JavaScript libraries technologies sorted by adoption
How We Detect Day.js
The Web Radar detects Day.js by analyzing HTTP headers, JavaScript variables, HTML source code, cookies, and DNS records across 3M+ websites. Our detection engine uses over 10,000+ pattern rules to ensure accurate identification. Browse all technologies →
Frequently Asked Questions
What is Day.js?+
Day.js is a JavaScript libraries technology detected on 3,873 websites in our database.
How many companies use Day.js?+
3,873 companies in our database use Day.js, representing approximately 0.13% of all tracked websites.
What industries use Day.js the most?+
The top industries using Day.js are E-Commerce, Consulting, Consumer Goods.
What countries use Day.js the most?+
The top countries using Day.js are US, JP, GB.
Is Day.js popular?+
Day.js is used by 3,873 companies, making it one of the most widely adopted JavaScript libraries technology based on adoption across our tracked websites.
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Browse DatasetsData last updated: June 2026