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Four-Leaf

AI career prep platform with voice mock interviews, resume tailoring, cover letter generation, and comp negotiation coaching.

Hiring & HR
United States Estimated origin: United States

Added April 9, 2026 · Last analysed April 9, 2026 · via · 57% 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 9 April 2026; the live site may have changed since.

Four-Leaf ships with the launch fundamentals in place, with complete legal pages, a thorough launch checklist, and clean crawl signals. Worth fixing first: no Content-Security-Policy and incomplete email security.

Launched on Product Hunt on April 9, 2026. The site is hosted on Vercel, with a domain registered 8 weeks before launch. The crawl picked up 7 technologies on this site, covering analytics, DNS providers, business email, and hosting. The stack includes Next.js, Cloudflare DNS, and Google Analytics.

For context, it's one of 48 launches on this exact stack and tighter on security headers than most Product Hunt launches.

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

9.5
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 35 · Some 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 (7) · Indie stack

Infrastructure
DNS Cloudflare DNS
Hosting Vercel (3)
Security HSTS (2)
Email
Business email Google Workspace (3)
Build & Framework
Meta-framework Next.js (6)
Analytics & Marketing
Analytics Google Analytics
SEO Google Search Console

Infrastructure

Network
AS16509 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 7 Mar 2026 to 5 Jun 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
5 months
Registered Feb 2026 · Cloudflare, Inc

Email Security

SPF ~all Soft-fail (~all). Common and accepted.
DKIM Detected via known email provider
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.

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)

Vibe Score Breakdown How?

SignalPoints
AI CSS signals +10
AI copy signals +5
AI palette signals +5
AI stack signals +10
AI layout 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.

AI Stance

Welcomes AI crawlers
llms.txt published
No AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (102 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
Terms of Service
/terms
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
44% unique

Security Headers (5/6)

Permissions-Policy experimental (check browser support)
X-XSS-Protection deprecated (use Content-Security-Policy)

Performance

531ms response time
Faster than 32% of sites
4 third-party domains loaded

Build

Code splitting
25 JS files
2 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.