Upsell.com
Start upselling in minutes with Upsell.com. The most popular Shopify upsell app for every eCommerce vertical.
Estimated origin: Israel
StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored 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.
Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.
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.