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Exfault

AI agents test Android apps in real cloud emulators, combine static and dynamic analysis, handle authenticated flows, and return reproducible security findings.

Developer Tools

Added June 29, 2026 · Last analysed June 29, 2026 · via Hacker News · 50% unique tagline

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Screenshot of Exfault

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 29 June 2026; the live site may have changed since.

Exfault covers some of the launch checklist, with a thorough launch checklist and clean crawl signals. Worth fixing first: missing several security headers, incomplete legal pages, and incomplete email security.

Launched on Hacker News on June 29, 2026. The site is hosted on Vercel, with a domain registered 8 weeks before launch. Our crawler found 11 technologies on this site, covering analytics, CSS frameworks, developer tools, and DNS providers. The stack includes Tailwind CSS, Cloudflare DNS, and Cloudflare Email Routing.

It's also running the same core stack as 2,122 other launches.

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

5.9
StackScope Score
Fair
100/100 Launch Readiness
Launch ready
2/6 Security Headers
Weak
0/3 Legal
Missing
2/2 Crawl files
Complete
100/100 Performance
Fast
Vibe Score 18 · 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
DNS Cloudflare DNS
Hosting Vercel
Security HSTS
Email
Email forwarding Cloudflare Email Routing (2)
Transactional email Mailgun
Build & Framework
CSS framework Tailwind CSS
Developer tools Vite
Font Google Fonts
UI library Lucide Icons
Analytics & Marketing
Analytics Vercel Analytics medium
SEO Google Search Console

Infrastructure

Network
AMAZON-02 - Amazon.com, Inc., US
AS16509 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Not green hosted
No green-energy record. Data from The Green Web Foundation.
SSL Certificate
Let's Encrypt
Valid 29 Jun 2026 to 27 Sep 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
2 months
Registered Apr 2026 · NameCheap, Inc.

Email Security

✓
SPF ~all Soft-fail (~all). Common and accepted.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
✗
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 (0)

This site uses no client-side storage we could detect on page load.

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)
⚠
Meta description is 222 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.

Performance How?

159 ms Server response
79% Faster than peers
732 ms Largest contentful paint
0.00 Cumulative layout shift
907 KB Page weight
3 Third-party domains
0 Console errors
0 Failed requests

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?

SignalPoints
Placeholder branding +10
AI palette signals +5
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

Welcomes AI crawlers
✓ 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 (2 URLs)
✗ security.txt
✓ llms.txt
✗ ads.txt
✗ humans.txt

Legal

? Privacy Policy not detected
? Terms of Service not detected
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
Detection works best on English language sites.

Security Headers (2/6)

✗
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

2 JS files
2 CSS files
3 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.