Captn
Edit subtitles visually in your browser. Upload video, SRT or VTT, fix timing and text on the preview, then export SRT, VTT, captioned MP4s, clips or translations.
StackScope is a free public catalogue of indie launches. We find launches on Product Hunt, Hacker News and similar feeds, then crawl each site to detect its tech stack and score it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 14 June 2026; the live site may have changed since.
Captn scores well across the board, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Main gaps: tracking cookies set before any opt-in and incomplete email security.
Launched on PeerPush on June 14, 2026. The site is hosted on Cloudflare in the United States. Our crawler found 9 technologies on this site, covering analytics, CDN, CSS frameworks, and DNS providers. The stack includes Tailwind CSS, Cloudflare, and Cloudflare DNS.
Notably, it's on one of the most common stacks we track, shared by 1,074 launches and more locked down than the typical PeerPush launch.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (9)
| CDN |
Cloudflare
|
| DNS |
Cloudflare DNS
|
| Protocol | HTTP/3 |
| Security | HSTS |
| Business email |
Zoho Mail
(2)
|
| CSS framework |
Tailwind CSS
|
| Analytics |
PostHog
(2)
|
| SEO |
Google Search Console
|
| SaaS |
Zoho
|
Infrastructure
Email Security
Storage (4)
| Name | Lifetime | Detected as |
|---|---|---|
| subtitle_csrf | session | - |
| subtitle_session_id | 6mo | - |
| subtitle_visitor_id | 5mo | - |
| Key | Size | Detected as |
|---|---|---|
| subtitle_posthog_distinct_id | 36 B | PostHog |
Readiness Breakdown How?
Performance How?
⚠ 5 images: 4 oversized
Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI copy signals | +5 |
| AI palette signals | +5 |
This score is based on structural patterns and is not definitive. Many legitimate sites may trigger signals, and AI-built sites may go undetected. It should be treated as an indicator, not a verdict.