Duplex

Run a second copy of any Electron app on your Mac, each with its own login. First instance free.

Added August 9, 2026 · Last analysed August 9, 2026 · via

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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 August 2026; the live site may have changed since.

Duplex still has work before launch. What needs work: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Product Hunt on August 9, 2026. The site is hosted on GitHub Pages and served through Cloudflare, with a domain registered 3 months before launch. The crawl picked up 7 technologies on this site, covering CDN, directory, DNS providers, and business email. The stack includes Cloudflare, Cloudflare Bot Management, and Fastly.

For context, it's running the same core stack as 2,186 other launches.

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

2.3

StackScope Score

Poor

82/100 Launch Readiness

Well prepared

0/6 Security Headers

Poor

0/3 Legal

Missing

0/2 Crawl files

Missing

94/100 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 (7)

Infrastructure

CDN	Cloudflare
CDN	Fastly
DNS	Namecheap DNS
Hosting	GitHub Pages
Security	Cloudflare Bot Management

Business email	PrivateEmail (2)

Other

Directory	Product Hunt

Infrastructure

Network

FASTLY - Fastly, Inc., US

AS54113 · US

DNS

Namecheap 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 7 Aug 2026 to 5 Nov 2026

Certificate as captured in this snapshot, not a live check.

Domain Age

3 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 (1)

Cookies (1)

Name	Lifetime	Detected as
__cf_bm	< 1h	Cloudflare

Readiness Breakdown How?

✓ Custom title and meta description

✓ Open Graph tags (title, image, description)

✓ Responsive viewport meta tag

✓ Favicon present

✓ Semantic HTML (nav, main, article)

⚠

Meta description is 180 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

- Twitter card meta tags

Performance How?

549 ms Server response

30% Faster than peers

504 ms Largest contentful paint

0.00 Cumulative layout shift

41 KB Page weight

37 KB Image weight

1 Third-party domains

0 Console errors

0 Failed requests

⚠ 2 images: 2 without width/height, 1 missing alt text

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

✗ sitemap.xml

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

? Privacy Policy not detected

? Terms of Service not detected

Detection works best on English language sites.

Security Headers (0/6)

✗

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

0 JS files

0 CSS files

1 Third-party domains

Brand Colours

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