Technology report · JavaScript library
Underscore.js usage report
As of 2026-10-28, Underscore.js, a JavaScript library, was detected on 1417 of the 66086 websites we scanned, a share of 2.1%. The sites that use it lean heavily toward a WordPress, PHP and jQuery stack, and the industry breakdown is led by e-commerce and retail. We could not read a version number for any of them.
- 1,417websites using it
- 2.1%of 66,086 scanned websites with a detected technology
- 2026-10-28data date
Industry could be determined for 425 of the 1417 sites. In that group, E-commerce and retail is largest with 103 sites (24.2%), followed by News and media with 63 sites (14.8%), Nonprofits with 48 sites (11.3%) and Education with 47 sites (11.1%). Government and public sector accounts for 18 sites (4.2%). These shares are measured against the 425 sites with a known industry, not against all sites.
The companion technologies are very consistent. Among the 1417 sites, jQuery appears on 1391 (98.2%), PHP on 1291 (91.1%) and WordPress on 1197 (84.5%). jQuery Migrate is present on 1046 (73.8%). Yoast SEO appears on 813 sites (57.4%). Google Tag Manager is on 776 (54.8%), Google Fonts on 679 (47.9%) and Google Analytics on 637 (45.0%).
Version information is missing here: versioned sites number 0, so no version breakdown can be shown. Sample sites where we detected the library include ringostarr.com, monzanet.it, forentrepreneurs.com, simpleshow.com and boom-studios.com. Use this page to see which kinds of sites and tools tend to appear alongside Underscore.js, not to judge which release is in use.
Industries using Underscore.js
| Industry | Websites | Share of 425 classified |
|---|---|---|
| E-commerce and retail | 103 | 24.2% |
| News and media | 63 | 14.8% |
| Nonprofits | 48 | 11.3% |
| Education | 47 | 11.1% |
| Government and public sector | 18 | 4.2% |
Technologies used together with Underscore.js
| Technology | Websites | Share of Underscore.js sites |
|---|---|---|
| jQuery | 1,391 | 98.2% |
| PHP | 1,291 | 91.1% |
| WordPress | 1,197 | 84.5% |
| jQuery Migrate | 1,046 | 73.8% |
| Yoast SEO | 813 | 57.4% |
| Google Tag Manager | 776 | 54.8% |
| Google Fonts | 679 | 47.9% |
| Google Analytics | 637 | 45% |
Example company websites
ringostarr.com, monzanet.it, forentrepreneurs.com, simpleshow.com, boom-studios.com
FAQ
- How many websites use Underscore.js?
- We detected Underscore.js on 1417 of the 66086 websites scanned, which is a share of 2.1%. The data date is 2026-10-28, and the figure covers only the sites in our scan.
- Which industries use Underscore.js most?
- Among the 425 sites with a known industry, E-commerce and retail leads with 103 sites (24.2%). News and media follows with 63 sites (14.8%), then Nonprofits with 48 (11.3%) and Education with 47 (11.1%).
- What technologies are commonly found with Underscore.js?
- The most frequent companions are jQuery on 1391 sites (98.2%), PHP on 1291 (91.1%) and WordPress on 1197 (84.5%). jQuery Migrate, Yoast SEO, Google Tag Manager, Google Fonts and Google Analytics also appear.
- Which Underscore.js versions are in use?
- This page cannot say. Versioned sites number 0, meaning we could not read a version for any of the 1417 sites, so no version breakdown is available.
- How common is Underscore.js on government sites?
- Government and public sector sites make up 18 of the 425 sites with a known industry, a share of 4.2%. That is the smallest of the industries listed on this page.
Check your own list
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