NumberChecker
Upload CSV contact lists to verify phone number status, WhatsApp activity, WhatsApp age and gender, RCS, iOS, Gmail, Yahoo, and Outlook signals at scale.
www.numberchecker.cloud
· Added June 14, 2026
· Last analysed June 14, 2026 · via 
· 75% unique tagline
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 14 June 2026; the live site may have changed since.
NumberChecker looks production-ready overall, with complete legal pages and clean crawl signals. Visible gaps: missing several security headers and no email security records.
Launched on Product Hunt on June 14, 2026. The site is hosted on Cloudflare in the United States, with a domain registered 7 weeks before launch. We've detected 10 technologies on this site, covering package cdn, CDN, CSS frameworks, and DNS providers. The stack includes Alpine.js, Tailwind CSS, and Cloudflare.
It's one of 36 launches on this exact stack.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (10)
| CDN |
Cloudflare
|
| DNS |
Cloudflare DNS
|
| Protocol | HTTP/3 |
| CSS framework |
Tailwind CSS
(2)
|
| Framework |
Alpine.js
|
| Icon font |
Iconify
(3)
|
| Package CDN |
jsDelivr
|
unpkg
|
|
| UI library |
Lucide Icons
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Storage (10)
| Key | Size | Detected as |
|---|---|---|
| iconify-count | 1 B | Iconify |
| iconify-version | 8 B | Iconify |
| iconify0 | 1.3 KB | Iconify |
| iconify1 | 2.8 KB | Iconify |
| iconify2 | 1.7 KB | Iconify |
| iconify3 | 1.4 KB | Iconify |
| iconify4 | 918 B | Iconify |
| iconify5 | 440 B | Iconify |
| Key | Size | Detected as |
|---|---|---|
| iconify-count | 1 B | Iconify |
| iconify-version | 8 B | Iconify |
Readiness Breakdown How?
Performance How?
⚠ 30 images: 30 without width/height
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 onboarding signals | +5 |
| AI palette signals | +5 |
| AI code-structure signals | +5 |
| AI CSS signals | +15 |
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.