Websites using core-js
core-js is a modular standard library for JavaScript, with polyfills for newer ECMAScript features.
core-js is available as open-source software. Learn more at github.com.
Wappalyzer tracks 5,000,000 live websites using core-js. Find top core-js websites, and build a filtered list of companies using core-js.
Top websites using core-js
These are the most trafficked websites using core-js.
| Hostname | Traffic | Tech spend | Country |
|---|---|---|---|
| app.hubspot.com | Very high | Very low | |
| hpanel.hostinger.com | Very high | Very low | 🇺🇸 |
| app.clickup.com | Very high | Low | 🇺🇸 |
| search.bilibili.com | High | High | |
| web.bale.ai | High | Medium | 🇮🇷 |
| doubao.com | High | Very low | 🇺🇸 |
| chatgpt.com | Very low | 🇺🇸 | |
| claude.ai | Medium | 🇺🇸 | |
| bilibili.com | Very low | 🇨🇳 | |
| app.notion.com | Medium | ||
| chat.deepseek.com | Very low | ||
| tiktok.com | Medium | 🇳🇱 | |
| canva.com | Medium | 🇺🇸 | |
| discord.com | Medium | ||
| trello.com | Medium | 🇺🇸 | |
| dash.cloudflare.com | Medium | 🇺🇸 | |
| space.bilibili.com | |||
| app.asana.com | |||
| upwork.com | Low | 🇺🇸 | |
| dropbox.com | Medium | 🇺🇸 | |
| platform.deepseek.com | Very low | 🇺🇸 | |
| app.slack.com | Medium | 🇺🇸 | |
| gitlab.com | Very high | ||
| soundcloud.com | Medium | 🇺🇸 | |
| note.com | Very low | 🇺🇸 |
Where is core-js used?
A breakdown of countries and languages across the websites where Wappalyzer detects core-js.
Countries
Languages
Top alternatives to core-js
The largest alternative technologies in the same category, ranked by detected websites.
| Technology | Websites |
|---|---|
| 5,000,000 | |
| 5,000,000 | |
| 5,000,000 | |
| 5,000,000 | |
| 5,000,000 | |
| 4,100,000 | |
| 2,800,000 | |
| 2,800,000 | |
| 2,000,000 | |
| 1,500,000 |
Find companies using core-js
Get company and contact details for 5,000,000 core-js websites, so you can turn research into outreach faster.
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Companies in United States
Find core-js companies located in United States.
Companies in United Kingdom
Find core-js companies located in United Kingdom.
Companies with emails and phone numbers
Prioritize core-js websites with both contact types available.
Top 5,000 websites by traffic
Start with the highest-traffic core-js websites in the dataset.
Websites with a .com domain
Limit results to core-js websites on .com domains.
5,000 low-traffic websites
Focus on lower-traffic core-js websites for long-tail prospecting.