Sites using ARCaptcha 
Iranian CAPTCHA and bot-protection service for web forms.
Found via: StackScope Discovery (Indie) 2 · StackScope Wider Web 7
ARCaptcha has been detected on 9 launches since first appearing in August 2026. Most recent detection: راوی ایندکس | راوی هوشمند دادههای بورس ایران, yesterday.
It's most commonly paired with HSTS, ArvanCloud, and eNamad.
Share of new sites using ARCaptcha
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.
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 that line without the technology itself changing. For a single continuous measure, switch to launch platforms.
Captcha leaders
| Tool | % of launches | % of category | ||
|---|---|---|---|---|
| #1 | – |
Cloudflare Turnstile
|
1.16% | 92.36% |
| #2 | – |
hCaptcha
|
0.09% | 6.87% |
| #3 | – |
Friendly Captcha
|
<0.01% | 0.35% |
| #4 | ▲2 | Cap (CAPTCHA) | <0.01% | 0.32% |
| #5 | – |
DS CF7 Math Captcha
|
<0.01% | 0.19% |
| … | ||||
| #22 | ▼7 |
ARCaptcha
Current page
|
<0.01% | 0.01% |
Percentages show adoption among indie launches: the share of all analysed launches, and of launches using any Captcha tool.Among September launches it ranked #25 in Captcha, down from #18 in August. All 53 in Captcha →
Often used with
| Tool | Sites |
|---|---|
| HSTS | 5 |
| ArvanCloud | 5 |
| eNamad | 5 |
WordPress
|
4 |
Next.js
|
3 |
Tools most often detected on the same sites as ARCaptcha.
Recent launches we can show
2 of the 9 sites using ARCaptcha are product launches we list individually. The other 7 are sites we found crawling the wider web: they count towards the figures above, but we do not publish them one by one.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
آموزش انگلیسی آنلاین کودکان | پلتفرم آموزشی کنکاو
The StackScope API serves all 9 sites using ARCaptcha, filterable and exportable, from £15 a month.