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.
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 |
|---|---|---|---|
| accounts.shopify.com | Very high | Very high | 🇸🇪 |
| app.clickup.com | Very high | High | |
| ap.www.namecheap.com | Very high | Very high | 🇺🇸 |
| app.asana.com | Very high | Very high | 🇺🇸 |
| account.proton.me | Very high | High | 🇨🇭 |
| cloudconvert.com | Very high | Medium | 🇺🇸 |
| checkout.stripe.com | Very high | Medium | 🇺🇸 |
| bitbucket.org | Very high | Very high | 🇺🇸 |
| app.hubspot.com | Very high | Very high | 🇺🇸 |
| hpanel.hostinger.com | Very high | Very high | 🇺🇸 |
| chatgpt.com | Medium | 🇺🇸 | |
| claude.ai | High | 🇺🇸 | |
| mercadolivre.com.br | Very low | 🇧🇷 | |
| chat.deepseek.com | Very low | 🇺🇸 | |
| account.godaddy.com | Medium | 🇺🇸 | |
| app.slack.com | Medium | ||
| dash.cloudflare.com | Medium | ||
| accounts.zoho.com | Very low | 🇺🇸 | |
| discord.com | Medium | ||
| apps.shopify.com | Low | 🇸🇪 | |
| airtable.com | Low | 🇺🇸 | |
| lista.mercadolivre.com.br | Medium | 🇧🇷 | |
| ahrefs.com | Very low | 🇸🇬 | |
| admin.shopify.com | Very low | 🇸🇪 | |
| calendly.com | High | 🇺🇸 |
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 | |
| 5,000,000 | |
| 3,400,000 | |
| 3,100,000 | |
| 2,700,000 | |
| 2,500,000 |
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
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Companies in United Kingdom
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Companies with emails and phone numbers
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Top 5,000 websites by traffic
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Websites with a .com domain
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5,000 low-traffic websites
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