Calfeed
Paste a schedule, get a shareable calendar link. Calfeed turns plain text into a calendar feed subscribers add to Apple, Google, or Outlook.
Estimated origin: United States
Added June 4, 2026
· Last analysed June 4, 2026 · via 
· also on PeerPush
, StackScope Discovery
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 4 June 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.
Calfeed ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist. Worth fixing first: tracking cookies set before any opt-in.
Launched on Product Hunt on June 4, 2026. The site is hosted on Vercel, with a domain registered 3 weeks before launch. We've detected 16 technologies on this site, covering analytics, captcha, CSS frameworks, and DNS providers. The stack includes Next.js, React, and Tailwind CSS.
It's running the same core stack as 14,963 other launches and tighter on security headers than most Product Hunt launches.
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Tech Stack (16)
| DNS |
Cloudflare DNS
|
| Hosting |
Vercel
(2)
|
| Security | HSTS |
| Email forwarding |
Cloudflare Email Routing
(2)
|
| Captcha |
Cloudflare Turnstile
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Maps |
Google Maps
|
| Meta-framework |
Next.js
(2)
|
| UI library |
shadcn/ui
|
| Analytics |
Google Analytics
(5)
|
Mixpanel
(4)
|
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
(2)
|
| Payments |
Stripe
|
| Error tracking |
Sentry
(2)
|
Infrastructure
Email Security
Storage (10)
| Name | Lifetime | Detected as |
|---|---|---|
| cf_after_signin | < 1h | - |
| cf_attr | 3mo | - |
| _ga | 1y | Google Analytics |
| _ga_VSJ92HQJTG | 1y | Google Analytics |
| Key | Size | Detected as |
|---|---|---|
| mp_bdd0d76a6e59178df409fb45358e8bc0_mixpanel | 329 B | Mixpanel |
| Key | Size | Detected as |
|---|---|---|
| mp_gen_new_tab_id_mixpanel_bdd0d76a6e59178df409fb45358e8bc0 | 1 B | Mixpanel |
| mp_tab_id_mixpanel_bdd0d76a6e59178df409fb45358e8bc0 | 41 B | Mixpanel |
| sentryReplaySession | 141 B | Sentry |
| Database | Version | Detected as |
|---|---|---|
| mixpanelBrowserDb | 1 | Mixpanel |
| mixpanelFlagsDb | 1 | Mixpanel |
Readiness Breakdown How?
Performance How?
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 CSS signals | +10 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI stack signals | +10 |
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.