Sites using uWebSockets
High-performance WebSocket and HTTP server library.
Get told when a new site ships with uWebSockets.
Stackdar watches every launch we detect and sends you the ones using uWebSockets, by email, Slack or webhook. On every plan, from £15 a month.
See how alerts work28 sites
24 found by StackScope, 4 via launch platforms
- StackScope Wider Web 17
- StackScope Discovery (Indie) 7
- Hacker News 2
- Product Hunt 1
- Other 1
uWebSockets has been detected on 28 launches we've crawled. Most recent detection: Lung Tung 5 Olympic, 3 days ago.
It's most commonly paired with Cloudflare DNS, Google Search Console, and HTTP/3.
Domain endings using uWebSockets
28 sites
- .com 50.00%
- .io 14.29%
- .online 14.29%
- .org 7.14%
- .app 3.57%
- .dev 3.57%
- .fun 3.57%
- .net 3.57%
Share of new sites using uWebSockets
Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026. Chart starts at first detection.
The shaded parts of the chart are measured against a different set of sites.
Grey: until 8 July 2026 we only tracked launches from launch platforms. From that date we crawl the wider web as well.
Amber: on 10 September 2026 we improved our infrastructure so we can index new sites much sooner, often on the day they go live. Sites found that early often haven't finished setting up, so anything usually added after launch reads lower from that date. We record each site as it was when we found it.
The share is a proportion of whatever we were tracking at the time, so it can step at these lines without the technology itself changing. For a single continuous measure, switch to launch platforms.
Server leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | ▼1 |
PHP
|
9.37% | 31.02% |
| #2 | ▲1 |
nginx
|
9.24% | 30.59% |
| #3 | – |
LiteSpeed Web Server
|
6.98% | 23.12% |
| #4 | – |
Apache
|
4.62% | 15.31% |
| #5 | – |
Caddy
|
2.85% | 9.45% |
| … | ||||
| #47 | ▼4 |
uWebSockets
Current page
|
<0.01% | <0.01% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Server tool.Among September launches it ranked #46 in Server, down from #42 in August. All 131 in Server →
Often used with
| Tool | Sites |
|---|---|
Cloudflare DNS
|
20 |
Google Search Console
|
15 |
| HTTP/3 | 15 |
Cloudflare
|
11 |
|
nginx
|
8 |
Tools most often detected on the same sites as uWebSockets.
Recent launches we can show
11 of the 28 sites using uWebSockets are product launches we list individually. The other 17 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
Braains.io
Games
Play a UNO®-style card game online | UNI!
Games
Typeover
Games
Podsol - Giant Adventures in a Tiny World
Games
Starwyrm: Space Exploration MMORPG
Games
Wankle3D — Free Multiplayer 3D Tank Game | Play in Browser
Games
Scrimba Explain
MECHAROYALE
Minesweeper Paint
PvP Minesweeper Game
Games
The StackScope API serves all 28 sites using uWebSockets, filterable and exportable, from £15 a month.