Extend UI
File viewers for PDF, DOCX, XLSX, and CSV, with bounding box citations, file upload, e-signing, and more.
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 10 June 2026; the live site may have changed since.
Extend UI has the basics covered well, with complete legal pages, a thorough launch checklist, and clean crawl signals. Visible gaps: missing several security headers and incomplete email security.
Launched on Hacker News on June 10, 2026. The site is hosted on Amazon.com in the United States, with a domain registered in 2017. Our crawler found 8 technologies on this site, covering CSS frameworks, DNS providers, business email, and frameworks. The stack includes Next.js, React, and Tailwind CSS.
Notably, it's on one of the most common stacks we track, shared by 7,155 launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (8)
| DNS |
Cloudflare DNS
|
| Hosting |
Vercel
|
| Security | HSTS |
| Business email |
Google Workspace
(4)
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
(2)
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Storage (1)
| Name | Lifetime | Detected as |
|---|---|---|
| gdpr_applies | session | - |
Readiness Breakdown How?
Performance How?
⚠ 26 images: 11 oversized, 24 without width/height, 24 missing alt text
Broken first-party requests (10), worth fixing
- 404 /ui?_rsc=vO2Kyv01KvTU2rhM
- 404 /ui?_rsc=JJ_mMSBlia8g5V4Q
- 404 /ui?_rsc=zZ7aKgXCxxeEeXr0
- 404 /ui?_rsc=7h4NYy5eoyMcNlUN
- 404 /ui/docs?_rsc=5CB68i4pnAekjehf
- 404 /ui?_rsc=yIp22O3xgPPxC28X
- 404 /ui/blocks?_rsc=5CB68i4pnAekjehf
- 404 /ui/docs/components/file-system?_rsc=5CB68i4pnAekjehf
Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.