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Sites using Castr

Live video streaming and multistreaming platform with an embeddable player.

5 sites via All sites #100 of 386 in Video First seen: Aug 7, 2026 Last seen: Sep 1, 2026 Website: castr.com

Found via: StackScope Discovery (Indie) 1 · StackScope Wider Web 4

View: All sites All launches Launch platforms StackScope Discovery StackScope Wider Web
Last 7 days 0.0% +0.0pp

Castr has been detected on 5 launches since first appearing in August 2026. Most recent detection: PromptSyntax: every prompt deserves a receipt, yesterday.

Share of new sites using Castr

Each dot is one launch day. Line is the 7-day rolling average. Chart starts at first detection.

0.0%
last 7 days
+0.0pp vs prior week
5
sites all time
since Aug 2026
Castr daily detection trend 5% 2% 0% Aug Sep Jul 31 · 0 / 51123 = 0.0% Aug 1 · 0 / 50510 = 0.0% Aug 2 · 0 / 49667 = 0.0% Aug 3 · 0 / 48193 = 0.0% Aug 4 · 0 / 37326 = 0.0% Aug 5 · 0 / 32708 = 0.0% Aug 6 · 0 / 36590 = 0.0% Aug 7 · 1 / 37891 = 0.0% Aug 8 · 1 / 39682 = 0.0% Aug 9 · 0 / 34222 = 0.0% Aug 10 · 0 / 28854 = 0.0% Aug 11 · 0 / 32021 = 0.0% Aug 12 · 0 / 33492 = 0.0% Aug 13 · 0 / 49922 = 0.0% Aug 14 · 0 / 51434 = 0.0% Aug 15 · 0 / 51507 = 0.0% Aug 16 · 0 / 51824 = 0.0% Aug 17 · 0 / 41450 = 0.0% Aug 18 · 0 / 53877 = 0.0% Aug 19 · 0 / 49425 = 0.0% Aug 20 · 0 / 66845 = 0.0% Aug 21 · 0 / 90379 = 0.0% Aug 22 · 1 / 91524 = 0.0% Aug 23 · 0 / 90246 = 0.0% Aug 24 · 0 / 78945 = 0.0% Aug 25 · 0 / 69269 = 0.0% Aug 26 · 0 / 65065 = 0.0% Aug 27 · 0 / 83398 = 0.0% Aug 28 · 0 / 83388 = 0.0% Aug 29 · 0 / 84189 = 0.0% Aug 30 · 0 / 92220 = 0.0% Aug 31 · 1 / 89378 = 0.0% Sep 1 · 1 / 89159 = 0.0%
Jul 31, 2026 33 days Sep 1, 2026

How StackScope detects technologies

Video leaders

Tool % of launches % of category
#1 – YouTube 1.96% 63.73%
#2 – Vimeo 0.80% 26.03%
#3 – MediaElement.js 0.24% 7.75%
#4 ▲1 Plyr 0.10% 3.39%
#5 ▼1 Wistia 0.09% 2.97%
…
#100 Castr Current page <0.01% 0.01%

Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Video tool. All 386 in Video →

Recent launches we can show

1 of the 5 sites using Castr are product launches we list individually. The other 4 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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

PromptSyntax: every prompt deserves a receipt Aug 8, 2026 Developer Tools

The StackScope API serves all 5 sites using Castr, filterable and exportable, from £15 a month.

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