← Back to browse

Recontact: Private Address Book

Keep your contractor, landlord, or colleague's number private from WhatsApp status views, Facebook friend suggestions, and loan app data harvesting. Get full caller ID without exposing your personal network.

Germany Estimated origin: Germany

Added August 20, 2026 · Last analysed August 20, 2026 · via

Own this Launch?
Screenshot of Recontact: Private Address Book

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 20 August 2026; the live site may have changed since.

Recontact: Private Address Book has the basics covered well, with complete legal pages and a thorough launch checklist. Main gaps: missing several security headers, no sitemap, and tracking cookies set before any opt-in.

Launched on Product Hunt on August 20, 2026. The site is hosted on Vercel and served through Cloudflare. Our crawler found 11 technologies on this site, covering advertising, analytics, CDN, and CSS frameworks. The stack includes Next.js, React, and Tailwind CSS.

It's also on one of the most common stacks we track, shared by 13,624 launches.

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

6.2
StackScope Score
Good
88/100 Launch Readiness
Launch ready
1/6 Security Headers
Poor
3/3* Legal
Complete*
1/2 Crawl files
Partial
85/100 Performance
Fast
Vibe Score 0 · No 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
Hosting Vercel
Security HSTS
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js (5)
Video YouTube (4)
Analytics & Marketing
Advertising Facebook Pixel (3)
Analytics Google Analytics (5)
Tag management Google Tag Manager (4)
Business Tools
Forms Tally (3)

Infrastructure

Network
CLOUDFLARENET - Cloudflare, Inc., US
AS13335 · US
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Green hosted
Host runs on renewable energy. Data from The Green Web Foundation.
SSL Certificate
Google Trust Services
Valid 12 Jul 2026 to 10 Oct 2026
Certificate as captured in this snapshot, not a live check.

Email Security

✓
SPF ~all (via apex matsco.de) Soft-fail (~all). Common and accepted.
✓
DKIM (via apex matsco.de) Detected on apex matsco.de
✗
DMARC Not published. Receivers fall back to permissive defaults.
?
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 (10)

Cookies (8)
NameLifetimeDetected as
VISITOR_INFO1_LIVE 5mo YouTube
VISITOR_PRIVACY_METADATA 5mo YouTube
YSC session -
_fbp 2mo Facebook Pixel
_ga 1y Google Analytics
_ga_XWGT449JMM 1y Google Analytics
__Secure-ROLLOUT_TOKEN 5mo -
__Secure-YNID 5mo YouTube
Local storage (2)
KeySizeDetected as
lastExternalReferrer 5 B -
lastExternalReferrerTime 13 B -

Readiness Breakdown How?

✓ Custom title and meta description
✓ Open Graph tags (title, image, description)
✓ Twitter card meta tags
✓ Responsive viewport meta tag
✓ Favicon present
✓ Semantic HTML (nav, main, article)
⚠
Meta description is 207 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.
- Canonical URL declared

Performance How?

189 ms Server response
70% Faster than peers
344 ms Largest contentful paint
0.00 Cumulative layout shift
3.3 MB Page weight
138 KB Image weight
4 Third-party domains
0 Console errors
0 Failed requests

⚠ 4 images: 4 oversized

Indicative grade from a single automated render, not a substitute for Lighthouse or field data, and not part of the StackScope score.

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 (no directives)
✗ sitemap.xml
✗ security.txt
✗ llms.txt
✗ ads.txt
✗ humans.txt

Legal

✓ Privacy Policy
/legal/privacy-policy
✓ Terms of Service
/legal/terms-and-conditions
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
92% unique
Mentions:
GDPR CCPA Cookies

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)

Build

✓ Code splitting
16 JS files
1 CSS files
4 Third-party domains
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.