Everything You Need to Calculate. 4Free
108 free online tools: image & PDF converters, QR & barcode generators, password tools, unit converters, social media tools and more. Mobile-first, no signup, no upload.
Added April 23, 2026
· Last analysed April 23, 2026 · via 
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 23 April 2026; the live site may have changed since.
Everything You Need to Calculate. 4Free ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and clean crawl signals. What needs work: no Content-Security-Policy and incomplete email security.
Launched on Product Hunt on April 23, 2026. The site is hosted on IONOS and served through Cloudflare, with a domain registered 6 weeks before launch. The crawl picked up 18 technologies on this site, covering advertising, analytics, CDN, and consent tooling. The stack includes Google Funding Choices, Tailwind CSS, and Cloudflare.
For context, it's running the same core stack as 174 other launches and tighter on security headers than most Product Hunt launches.
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Tech Stack (18)
| CDN |
Cloudflare
(4)
|
| DNS |
Cloudflare DNS
|
| Hosting |
IONOS
|
| Security | HSTS (2) |
| Business email |
IONOS Email
|
| CSS framework |
Tailwind CSS
|
| Developer tools |
Vite
|
| Font |
Google Fonts
|
| UI library |
shadcn/ui
|
| Advertising |
Google Ads
|
Google AdSense
(2)
|
|
Pinterest
|
|
| Analytics |
Cloudflare Web Analytics
|
Google Analytics
(2)
|
|
| Consent |
Google Funding Choices
(2)
|
| SEO |
Google Search Console
(2)
|
| Tag management |
Google Tag Manager
|
| Crypto |
CoinGecko
|
Infrastructure
Email Security
Storage (5)
| Name | Lifetime | Detected as |
|---|---|---|
| cf_clearance | 1y | Cloudflare |
| FCCDCF | 1y | Google Funding Choices |
| Key | Size | Detected as |
|---|---|---|
| cp_country | 2 B | - |
| cp_session_id | 36 B | - |
| cp_session_pv | 1 B | - |
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| Placeholder branding | +10 |
| AI palette signals | +5 |
| AI writing signals | +5 |
| AI iconography signals | +3 |
| Unfilled template placeholders | +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.