Sites using SockJS
Get told when a new site ships with SockJS.
Stackdar watches every launch we detect and sends you the ones using SockJS, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts workFound via: StackScope Discovery (Indie) 1 · StackScope Wider Web 160
SockJS has been detected on 161 launches we've crawled. The 7-day rolling share is 0.0%, roughly steady week on week. Most recent detection: WordTime - 掌握语言，只在弹指间。, today.
By product type, the launches using it are most often Developer Tools (27%), Games (27%), and Health (27%). By domain ending, launches using it are 7.1 times as likely as the average launch to live on a .xyz domain.
What kind of products ship with SockJS
15 launches
Domain endings using SockJS
160 sites
- .com 26.25%
- .xyz 15.00%
- .app 10.62%
- .me 8.75%
- .site 7.50%
- .co 4.38%
Share of new sites using SockJS
Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.
The shaded part of the chart is measured against a different set of sites. Until 8 July 2026 we only tracked launches from launch platforms; from that date we crawl the wider web as well. The share is a proportion of whatever we were tracking at the time, so it can step at that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
Realtime leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | ▲1 |
Socket.IO
|
0.32% | 68.94% |
| #2 | ▼1 |
Pusher
|
0.12% | 26.95% |
| #3 | – | STOMP.js | 0.01% | 1.52% |
| #4 | ▲1 | SockJS Current page | 0.01% | 1.37% |
| #5 | ▼1 |
SignalR
|
0.01% | 1.30% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Realtime tool. All 19 in Realtime →
Recent launches we can show
1 of the 161 sites using SockJS are product launches we list individually. The other 160 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. How StackScope Discovery works
The StackScope API serves all 161 sites using SockJS, filterable and exportable, from £15 a month.