Upsell.com
Start upselling in minutes with Upsell.com. The most popular Shopify upsell app for every eCommerce vertical.
Estimated origin: Israel
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 29 May 2026; the live site may have changed since.
Upsell.com scores highly overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. Main gaps: missing several security headers and incomplete email security.
Launched on PeerPush on May 29, 2026. The site is served through Cloudflare, with a domain registered in 1996. We've detected 20 technologies on this site, covering package cdn, javascript library, seo, and analytics. The stack includes AWS Route 53, Bing Webmaster, and cdnjs.
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Tech Stack (20)
| CDN |
Cloudflare
(2)
|
| DNS |
AWS Route 53
|
| Protocol | HTTP/3 |
| Security | HSTS |
| Business email |
Google Workspace
(2)
|
| Transactional email |
SendGrid
|
| Font |
Google Fonts
|
| JavaScript library |
jQuery
(2)
|
jQuery UI
(2)
|
|
| Package CDN |
cdnjs
|
Google Hosted Libraries
|
|
jsDelivr
|
|
unpkg
|
|
| Site builder |
Webflow
(4)
|
| Analytics | Mantle |
| SEO |
Bing Webmaster
|
Google Search Console
(2)
|
|
| Tag management |
Google Tag Manager
(2)
|
Infrastructure
Email Security
Storage (1)
| Name | Lifetime | Detected as |
|---|---|---|
| _cfuvid | session | Cloudflare |
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| AI copy signals | +5 |
| AI palette signals | +5 |
| AI layout signals | +5 |
| AI code-structure 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.