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Technology answer

SockJS

1,038

companies run it, <0.01% of 54,527,857 in the index. Landing 12 Sept 2026.

Hosts: 2,617 live hosts run it, of 191,809,695 hosts in the index, <0.01%. A host is a website, not a company.

Companies by month

Companies, monthly, on the fixed panel of sites crawled since 2020of 54,527,857 in the indexlanding 12 Sept 2026

1,038 at Sept 26; 950 twelve months earlier, +88, +9.3% on the fixed panel; the series starts January 2021 because the panel is anchored at 31 Dec 2020

The 69 numbers in this chart
MonthCompaniesObserved on the panel
2021-0100
2021-0200
2021-0300
2021-0400
2021-0500
2021-0600
2021-0700
2021-0800
2021-0900
2021-1000
2021-1100
2021-1200
2022-0100
2022-0200
2022-0300
2022-0400
2022-0500
2022-0600
2022-0700
2022-0800
2022-0900
2022-1000
2022-1100
2022-1200
2023-0100
2023-0200
2023-0300
2023-0400
2023-0500
2023-0600
2023-0700
2023-0800
2023-0900
2023-1000
2023-1100
2023-1200
2024-0100
2024-0200
2024-0300
2024-0400
2024-0500
2024-0600
2024-0700
2024-08withheld0
2024-09withheld0
2024-107918
2024-1115536
2024-1223053
2025-0131272
2025-0239190
2025-03470109
2025-04549127
2025-05628145
2025-06711164
2025-07794184
2025-08878203
2025-09950220
2025-101,015235
2025-111,016235
2025-121,012234
2026-011,010234
2026-021,024237
2026-031,046242
2026-041,048242
2026-051,049243
2026-061,052243
2026-071,048242
2026-081,045242
2026-091,038240

Both denominators, and a third

Shares of the same 1,038each row a different wholelanding 12 Sept 2026

Denominator
Companies
Share
companies in the index
54,527,857
<0.01%
companies running anything in JavaScript Libraries
40,118,208
<0.01%
companies running anything in Real-time communication libraries
89,802
1.2%

Three wholes, three shares of one count: a share travels with its whole, never alone. Against the last of them, SockJS is rank 5 of 8 technologies in Real-time communication libraries.

Open as a segment

1,038 companies; add a country, a sector or a band on the segment page. Counting is free.

/companies/tech-sockjs

Open the segment

Catalogue record

As recorded in the cataloguetaxonomy release tax-2026.10last discovered 10 Sept 2026

SockJS is an open-source JavaScript library that emulates WebSocket-style messaging with fallbacks.

SockJS provides a browser and server library for real‑time bidirectional communication with graceful fallbacks when WebSockets are unavailable. It is used by developers building realtime features in web apps.

Kindlibrary
VendorSockJS Community, sockjs.org
Slugsockjs
Deploymentself-hosted
Pricingfree
Open sourceyes
First discovered2025-02-03
Last discovered2026-09-10
Taxonomy releasetax-2026.10