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Websites using SockJS

JavaScript libraries Visit github.com

SockJS is a browser-based JavaScript library that offers a WebSocket-like communication interface for applications.

Lead List Exporter

1.3k live SockJS sites, ready to export.

That's how many SockJS websites are in VersionDB right now, each with its full tech stack, contact details, and social profiles.

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SockJS companies in the United States

Every SockJS website we detected in the United States.

Companies with personnel emails

Only sites where a personal, company-hosted email was found.

Decision makers on LinkedIn

Sites with at least one personnel LinkedIn profile.

Top 100,000 SockJS sites by traffic

Start with the highest-traffic end of the dataset.

Sites on a .com domain

Limit results to SockJS websites on .com domains.

Companies with phone numbers

Only sites where an organisation phone number was found.

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Versions

Which SockJS versions are most used?

We could read a version number on 28% of SockJS sites. Of those, the most common are SockJS 0, on 236 sites and SockJS 1, on 132 sites.

64% on v0
Versions detected
2
Sites with a version
368
Share of sites by version
v0 64% v1 36%
Live Websites

Websites Using SockJS

A sample of live SockJS sites from our latest crawl, with the other technologies each one runs.

Open in the Lead List Exporter
DomainAlso runsCrawl Date
feedcoyote.com
HTTP/3HSTSGoogle AnalyticsGoogle Tag ManagerGoogle Cloud
September 27, 2026
vaxcel.digital
jQueryHSTSjQuery MigrateApache HTTP ServerGoogle Analytics
September 26, 2026
sfstory.co.kr
jQueryPHPApache HTTP ServerCloudflareGoogle Analytics
September 25, 2026
b2miningdata.com
HSTSBootstrapreCAPTCHAAzureAzure Front Door
September 24, 2026
poradnikpracownika.pl
NginxGoogle Tag ManagerreCAPTCHA
September 23, 2026
worldclubdome.com
jQueryHTTP/3HSTSCloudflareGoogle Tag Manager
September 23, 2026
quizor.gr
HSTSApache HTTP ServerBootstrapCloudflareGoogle Analytics
September 22, 2026
zkbs.ru
jQueryNginxHSTSjQuery MigrateUbuntu
September 22, 2026
xn--ewcols9ipa6f.xn--rvc1e0am3e
jQueryNginxHSTSBootstrapGoogle Analytics
September 21, 2026
livingplanetindex.org
jQueryNginxBootstrapjsDelivrUbuntu
September 21, 2026

How many websites use SockJS?

We found SockJS on 1,332 websites in our September 2026 crawl, across 73 countries.

Which countries use SockJS the most?

By number of websites, the top countries are United States (23%, 307 sites), China (9%, 116 sites), Germany (6%, 84 sites), Netherlands (6%, 76 sites) and France (4%, 59 sites). Together they account for 48% of the 1,332 SockJS sites we track. 36% of the sites are in English, and .com is the most used domain ending, on 32% of them.

Where are SockJS websites hosted?

The networks carrying the most SockJS sites are Amazon.com, Inc. (214 sites), Cloudflare, Inc. (116 sites) and DigitalOcean, LLC (85 sites).

What technologies are used with SockJS?

Across the 1,332 SockJS sites we track, the technologies most often found alongside it are jQuery (90%, 1,194 sites), Bootstrap (66%, 884 sites), Nginx (49%, 657 sites), HSTS (30%, 403 sites) and Ubuntu (28%, 370 sites).

Deep Dive

Breakdown of SockJS websites

What else they run, plus their language, hosting network, domain extension and country.

Same category

Other technologies in JavaScript libraries

JavaScript libraries technologies run on 57.54% of the websites we track. SockJS ranks #137 of 187, on under 0.01% of JavaScript libraries sites.

All JavaScript libraries technologies

FAQ

Answers drawn from our latest crawl of SockJS websites. Anything else, email us and we will look it up.

Through our own crawl, which checks each site's HTML, scripts and headers rather than relying on self-reported data.