← Back to browse

WhatsApp Number Filter Tool

Professional WhatsApp number filter tool for bulk verification, business account detection, avatar analysis, and lead generation. Export high-quality WhatsApp leads efficiently.

Marketing
China Estimated origin: China

Added May 11, 2026 · Last analysed May 11, 2026 · via · 71% unique tagline

Own this Launch?
Screenshot of WhatsApp Number Filter Tool

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 11 May 2026; the live site may have changed since.

WhatsApp Number Filter Tool is partway there, with a thorough launch checklist and clean crawl signals. What needs work: missing several security headers, incomplete legal pages, and incomplete email security.

Launched on Product Hunt on May 11, 2026. The site is served through Cloudflare, with a domain registered 9 months before launch. The crawl picked up 11 technologies on this site, covering analytics, wordpress plugin, CDN, and CMS. The stack includes WordPress, 51.la, and Brevo.

For context, it's running the same core stack as 1,187 other launches.

If you own this site, refresh the snapshot and see the full fix list any time →

5.5
StackScope Score
Fair
100/100 Launch Readiness
Launch ready
1/6 Security Headers
Poor
0/3 Legal
Missing
2/2 Crawl files
Complete
Vibe Score 3 · Few AI signals
How much the site looks AI-generated. Informational pattern-match signal, not a verdict. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (11)

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Protocol HTTP/3
Security HSTS
Email
Email forwarding Cloudflare Email Routing (2)
Email marketing Brevo
Build & Framework
CMS WordPress (3)
WordPress plugin Polylang
Rank Math
Analytics & Marketing
Analytics 51.la (2)
Microsoft Clarity

Infrastructure

Network
CLOUDFLARENET - Cloudflare, Inc., US
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Google Trust Services
Valid 19 Apr 2026 to 18 Jul 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
11 months
Registered Aug 2025 · Alibaba Cloud Computing Ltd. d/b/a HiChina (www.net.cn)

Email Security

✓
SPF ~all Soft-fail (~all). Common and accepted.
✓
DKIM Detected via known email provider
✗
DMARC p=none None (p=none). Monitoring only.
?
MTA-STS Not deployed. Mail to your domain can be downgraded to plaintext en route.
?
TLS-RPT Not configured. You won't hear about silent SMTP TLS handshake failures.

Storage (6)

Cookies (5)
NameLifetimeDetected as
pll_language 1y Polylang
__51uvsct__Ky94RDT5JlBoqp7a 1y 51.la
__51vcke__Ky94RDT5JlBoqp7a 1y 51.la
__51vuft__Ky94RDT5JlBoqp7a 1y 51.la
__vtins__Ky94RDT5JlBoqp7a session 51.la
Session storage (1)
KeySizeDetected as
wpEmojiSettingsSupports 70 B WordPress

Readiness Breakdown How?

✓ Custom title and meta description
✓ Open Graph tags (title, image, description)
✓ Twitter card meta tags
✓ Canonical URL declared
✓ Responsive viewport meta tag
✓ Favicon present
✓ Semantic HTML (nav, main, article)
⚠
Page title is 67 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.
⚠
Meta description is 177 characters (advisory) Google only shows about 155–160 characters of the description in desktop search results (less on mobile); anything past that won't appear.

Vibe Score Breakdown How?

SignalPoints
AI writing signals +3

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.

AI Stance

No AI stance declared
✗ llms.txt published
✓ No AI bots blocked in robots.txt
Content-Signal
? No directive declared
Link headers
? None advertised

Well-Known Files

✓ robots.txt
✓ sitemap.xml (3 URLs)
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

? Privacy Policy not detected
? Terms of Service not detected
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
Detection works best on English language sites.

Security Headers (1/6)

✗
Referrer-Policy
✗
X-Frame-Options
✗
Permissions-Policy experimental (check browser support)
✗
X-Content-Type-Options
✗
Content-Security-Policy
✓
Strict-Transport-Security
–
X-XSS-Protection deprecated (use Content-Security-Policy)

Performance

1488ms response time
Faster than 5% of sites
6 third-party domains loaded

Build

✓ Code splitting
6 JS files
1 CSS files
6 Third-party domains

Brand Colours

Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.