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Socket.IO on new websites

Realtime bidirectional communication library for Node.js and browsers, often used for chat and live updates.

#1 of 22 in Realtime In our data since Apr 2026 Last seen: Oct 16, 2026 Most recent launch: Danbooru Tags Searcher, Oct 16, 2026 Website: socket.io

16,075 sites

15,901 found by StackScope, 174 via launch platforms

StackScope Wider Web 13,238 StackScope Discovery (Indie) 2,663 Product Hunt 119 Other 37 Hacker News 11 PeerPush 7
  • StackScope Wider Web 13,238
  • StackScope Discovery (Indie) 2,663
  • Product Hunt 119
  • Other 37
  • Hacker News 11
  • PeerPush 7
View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web

About 1 in 490 websites that went live in the last 30 days use Socket.IO (0.2%).

These figures cover websites that went live since April 2026, not the web as a whole.

Stackdar alerts

Get told when a new site ships with Socket.IO.

3,885 new sites with Socket.IO first seen in the last 30 days.

Stackdar watches every launch we detect and sends you the ones using Socket.IO, by email, Slack or webhook. On every plan, from £15 a month.

See how alerts work

Share of new sites using Socket.IO

Each dot is one launch day. Line is the 7-day rolling average; weekly averages before July 2026.

0.2%
last 7 days
+0.0pp vs prior week
0.2%
30 days to Oct 15
-0.1pp vs 30 days before
16,075
sites all time
since Apr 2026
Socket.IO daily detection trend Before 8 July 2026: launch platforms only. We began crawling the wider web on this date, so the cohort this share is measured against changes here. 10 September 2026: we improved our infrastructure to index new sites much sooner, often on the day they go live, so the cohort this share is measured against changes here. 5% 2% 0% Apr May Jun Jul Aug Sep Oct Weekly averages before this point, daily after. Jul 18 · 35 / 24639 = 0.1% Jul 19 · 25 / 27608 = 0.1% Jul 20 · 14 / 23836 = 0.1% Jul 21 · 20 / 22941 = 0.1% Jul 22 · 20 / 24371 = 0.1% Jul 23 · 15 / 18098 = 0.1% Jul 24 · 10 / 13979 = 0.1% Jul 25 · 30 / 9550 = 0.3% Jul 26 · 44 / 21748 = 0.2% Jul 27 · 62 / 37229 = 0.2% Jul 28 · 48 / 41882 = 0.1% Jul 29 · 45 / 53558 = 0.1% Jul 30 · 160 / 48251 = 0.3% Jul 31 · 244 / 56048 = 0.4% Aug 1 · 224 / 54882 = 0.4% Aug 2 · 217 / 53848 = 0.4% Aug 3 · 206 / 52614 = 0.4% Aug 4 · 161 / 40703 = 0.4% Aug 5 · 129 / 35346 = 0.4% Aug 6 · 155 / 39147 = 0.4% Aug 7 · 140 / 40246 = 0.3% Aug 8 · 151 / 42803 = 0.4% Aug 9 · 154 / 37774 = 0.4% Aug 10 · 139 / 32323 = 0.4% Aug 11 · 142 / 34556 = 0.4% Aug 12 · 147 / 37132 = 0.4% Aug 13 · 213 / 55467 = 0.4% Aug 14 · 218 / 56751 = 0.4% Aug 15 · 228 / 55907 = 0.4% Aug 16 · 231 / 56268 = 0.4% Aug 17 · 189 / 45487 = 0.4% Aug 18 · 186 / 56556 = 0.3% Aug 19 · 381 / 51666 = 0.7% Aug 20 · 563 / 68949 = 0.8% Aug 21 · 406 / 93838 = 0.4% Aug 22 · 334 / 94185 = 0.4% Aug 23 · 296 / 93588 = 0.3% Aug 24 · 281 / 81704 = 0.3% Aug 25 · 245 / 71523 = 0.3% Aug 26 · 267 / 66852 = 0.4% Aug 27 · 299 / 87824 = 0.3% Aug 28 · 280 / 87903 = 0.3% Aug 29 · 280 / 88059 = 0.3% Aug 30 · 310 / 100664 = 0.3% Aug 31 · 304 / 100235 = 0.3% Sep 1 · 337 / 103411 = 0.3% Sep 2 · 358 / 108910 = 0.3% Sep 3 · 340 / 103274 = 0.3% Sep 4 · 321 / 98525 = 0.3% Sep 5 · 365 / 102851 = 0.4% Sep 6 · 282 / 89270 = 0.3% Sep 7 · 232 / 86116 = 0.3% Sep 8 · 209 / 77962 = 0.3% Sep 9 · 180 / 75505 = 0.2% Sep 10 · 251 / 83630 = 0.3% Sep 11 · 228 / 85542 = 0.3% Sep 12 · 146 / 56758 = 0.3% Sep 13 · 151 / 57985 = 0.3% Sep 14 · 155 / 59221 = 0.3% Sep 15 · 149 / 58179 = 0.3% Sep 16 · 143 / 58908 = 0.2% Sep 17 · 146 / 56737 = 0.3% Sep 18 · 144 / 53078 = 0.3% Sep 19 · 125 / 45266 = 0.3% Sep 20 · 103 / 44751 = 0.2% Sep 21 · 139 / 51657 = 0.3% Sep 22 · 157 / 55399 = 0.3% Sep 23 · 119 / 58300 = 0.2% Sep 24 · 101 / 53449 = 0.2% Sep 25 · 105 / 50753 = 0.2% Sep 26 · 280 / 101512 = 0.3% Sep 27 · 103 / 52127 = 0.2% Sep 28 · 120 / 61101 = 0.2% Sep 29 · 118 / 77843 = 0.2% Sep 30 · 110 / 69704 = 0.2% Oct 1 · 106 / 69215 = 0.2% Oct 2 · 100 / 64673 = 0.2% Oct 3 · 88 / 53724 = 0.2% Oct 4 · 94 / 52041 = 0.2% Oct 5 · 120 / 63684 = 0.2% Oct 6 · 114 / 67575 = 0.2% Oct 7 · 133 / 67640 = 0.2% Oct 8 · 113 / 69290 = 0.2% Oct 9 · 128 / 70284 = 0.2% Oct 10 · 100 / 60624 = 0.2% Oct 11 · 115 / 65582 = 0.2% Oct 12 · 134 / 66609 = 0.2% Oct 13 · 169 / 70846 = 0.2% Oct 14 · 152 / 70610 = 0.2% Oct 15 · 206 / 93240 = 0.2%
Mar 30, 2026 90 days Oct 15, 2026

The shaded areas were measured against a different set of sites, so the line can step there without Socket.IO itself changing.

Coverage details

Before the dashed line where the dots begin, the line is a weekly average. After it, the last 90 days are shown one day at a time.

Grey: before 8 July 2026, we only tracked launches from launch platforms. From that date we crawl the wider web as well.

Amber: 8 July to 10 September 2026, before we improved our infrastructure to 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 10 September. We record each site as it was when we found it.

The share is a proportion of whatever we were tracking at the time. For a single continuous measure, switch to launch platforms.

How StackScope detects technologies

What kind of sites use Socket.IO

5,211 sites with a known type, all time

Health
15.9%
Marketing
11.1%
Finance
10.5%
E-commerce
8.5%
Games
8.5%
Education
8.2%
Productivity
7.5%
Social
6.4%
Content
6.3%
Developer Tools
5.0%
AI
4.9%
Hiring & HR
2.6%
Crypto
2.2%
Design
2.1%
Directory
0.4%

Domain endings using Socket.IO

16,067 sites, all time

  • .com 57.9%
  • .xyz 5.3%
  • .co 3.7%
  • .online 3.5%
  • .org 2.9%
  • .fr 2.5%
  • .app 2.4%
  • .in 2.3%
  • .net 2.2%
  • .uk 2.2%
  • .site 1.6%
  • .ai 1.4%
  • .io 1.3%
  • .ca 1.1%
  • .space 0.9%

Country

Country likely for 2,491 of 16,075 sites (15.5%), all time.

How we know

Country comes from what each site says about itself, such as a company registration, legal terms or a phone number, not just its domain ending. Too few sites state their country plainly for the usual count, so this one also counts single signals: a country domain ending, a phone number (for North America, its area code), a location the site declares in its own page metadata, or a country-specific vendor stack and the page language where they agree and nothing contradicts them. Read these as likely rather than certain.

  • United States United States 16.6%
  • France France 15.9%
  • India India 14.5%
  • United Kingdom United Kingdom 12.5%
  • Canada Canada 6.7%
  • Brazil Brazil 4.3%
  • Switzerland Switzerland 2.8%
  • China China 2.4%
  • Japan Japan 2.4%
  • South Korea South Korea 2.0%
  • Australia Australia 2.0%
  • Germany Germany 1.7%
  • Spain Spain 1.3%
  • Türkiye Türkiye 1.3%
  • Sweden Sweden 1.2%

Green hosting

174 checked sites since Apr 2026.

What this means

The share whose web host The Green Web Foundation lists as running on green energy, against the average for every new site we checked.

  • Socket.IO 48%
  • Average 47%

Realtime leaders

Tool % of sitesall time % of categoryall time
#1 – Socket.IO Current page 0.3% 70.5%
#2 – Pusher 0.1% 26.2%
#3 – SignalR <0.1% 1.3%
#4 – Ably <0.1% 0.8%
#5 – STOMP.js <0.1% 0.5%

Percentages show all-time adoption across the new sites we track: the share of all of them, and of the sites using any Realtime tool. All 22 in Realtime →

Often used with

Tool Sites vs all new sites
Yandex Metrica 3,140 54x
Google Analytics 4,780 2.9x

Tools that turn up far more often on Socket.IO sites than on new sites in general, and how many times as common each one is there.

Recent launches using Socket.IO

2,837 of the 16,075 sites using Socket.IO are product launches we list individually. The other 13,238 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one. They are included in the StackScope API and in Stackdar alerts. How StackScope Discovery works

Danbooru Tags Searcher Oct 16, 2026 Also detected Quasar Vue.js DNSPod FastAPI Untitled site Oct 16, 2026 · Health Also detected React Caddy Cloudflare Google Analytics Insyte — Business Intelligence, Automation & Digital Product Development Oct 16, 2026 · Productivity Also detected Cloudflare DNS Cloudflare Email Routing Cloudflare Web Analytics Fastly DuckPoint Oct 16, 2026 · Games Also detected Cloudflare DNS GIPHY nginx Screenshot of Kotch, a launch using Socket.IO Kotch Oct 16, 2026 · score 5.5 · Health Also detected Netlify Apple App Store Google Fonts Raydion | GPU Compute Infrastructure for AI Oct 16, 2026 · Developer Tools Also detected Brevo Cloudflare Three.js JAiA Solutions | Automatización de procesos con IA en Barcelona Oct 16, 2026 Also detected Vercel IONOS Tuently — Build Confidence & Excel in English Oct 15, 2026 · Education Also detected Vercel Google Fonts Porkbun DNS Porkbun Email Forwarding sincalor.IA — Contador de calorías con IA Oct 15, 2026 · Health Also detected Vercel Google Fonts Google Search Console Resend Free Ranking Scorecard: does your business show up on Google, Maps and ChatGPT? Oct 15, 2026 · AI Also detected Cloudflare Tailwind CSS Hosting, VPS ve Alan Adı | FAST VPS HOST Oct 15, 2026 · Developer Tools Also detected Google Fonts Bondova – AI-drevne apper for økonomi og hverdag | Trondheim Oct 15, 2026 Also detected Vercel Google Fonts

Showing the most recent 12 of 2,837.

The StackScope API serves all 16,075 sites using Socket.IO, filterable and exportable, from £15 a month.

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.