Luhnly
Generate fake, Luhn-valid test credit card numbers for Visa, Mastercard, Amex and Discover. Free, instant, no signup.
Added August 28, 2026
· Last analysed August 28, 2026 · via 
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 28 August 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.
Luhnly is largely in shape, with complete legal pages, a thorough launch checklist, and clean crawl signals. What needs work: missing several security headers and incomplete email security.
Launched on Product Hunt on August 28, 2026. The site is served through Cloudflare, with a domain registered 1 week before launch. The crawl picked up 13 technologies on this site, covering advertising, security, analytics, and CDN. The stack includes Google Funding Choices, Cloudflare, and Cloudflare Bot Management.
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Tech Stack (13)
| CDN |
Cloudflare
(2)
|
| DNS |
Cloudflare DNS
|
| Security |
Cloudflare Bot Management
|
| HSTS |
| Email forwarding |
Cloudflare Email Routing
(2)
|
| Font |
Google Fonts
|
| Advertising |
Google Ads
|
Google AdSense
(2)
|
|
| Analytics |
Google Analytics
(4)
|
| Consent |
Google Funding Choices
|
| SEO |
Google Search Console
|
| Tag management |
Google Tag Manager
(2)
|
| Directory |
Product Hunt
|
Infrastructure
Email Security
Storage (5)
| Name | Lifetime | Detected as |
|---|---|---|
| cf_clearance | 12mo | Cloudflare |
| FCCDCF | 1y | - |
| _ga | 1y | Google Analytics |
| _ga_4L62706YF2 | 1y | Google Analytics |
| __cf_bm | < 1h | Cloudflare |
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 palette signals | +5 |
| AI writing signals | +5 |
| AI typography 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.