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due.box

A money accountability app and habit tracker with real money on the line. Set goals, miss a deadline, and the penalty runs automatically.

Added April 28, 2026 · Last analysed April 28, 2026 · via · 62% unique tagline

Own this Launch?
Screenshot of due.box

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 28 April 2026; the live site may have changed since.

due.box is largely in shape, with a complete set of security headers, a thorough launch checklist, and well-configured email security. Visible gaps: incomplete legal pages and tracking cookies set before any opt-in.

Launched on Product Hunt on April 28, 2026. The site is hosted on HETZNER-CLOUD3-AS in Germany, with a domain registered 11 weeks before launch. The crawl picked up 9 technologies on this site, covering analytics, backend framework, CSS frameworks, and DNS providers. The stack includes Tailwind CSS, 3DNS, and Google Fonts.

For context, it's on one of the most common stacks we track, shared by 5,949 launches and more locked down than the typical Product Hunt launch.

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

7.5
StackScope Score
Good
88/100 Launch Readiness
Launch ready
6/6 Security Headers
Strong
0/3 Legal
Missing
2/2 Crawl files
Complete
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 (9)

Infrastructure
DNS 3DNS
Security HSTS (2)
Email
Business email Proton Mail (3)
Transactional email Resend
Build & Framework
CSS framework Tailwind CSS
Font Google Fonts
Analytics & Marketing
Analytics PostHog (3)
SEO Google Search Console
Other
Backend framework Phoenix

Infrastructure

Network
HETZNER-CLOUD3-AS, DE
AS212317 · DE
DNS
3DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Let's Encrypt
Valid 5 Apr 2026 to 4 Jul 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
5 months
Registered Feb 2026 · NameSilo, LLC

Email Security

✓
SPF ~all Soft-fail (~all). Common and accepted.
✓
DKIM Detected via known email provider
✓
DMARC p=quarantine Quarantine (moderate)
?
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 (7)

Cookies (2)
NameLifetimeDetected as
ph_phc_QpxgzwSjOVSvUsMZKDP1Y5iHyvoDpNDzWit120lI47y_posthog 12mo PostHog
_do_or_due_key 10y -
Local storage (1)
KeySizeDetected as
ph_phc_QpxgzwSjOVSvUsMZKDP1Y5iHyvoDpNDzWit120lI47y_posthog 1.4 KB PostHog
Session storage (4)
KeySizeDetected as
phx:deploy-version 12 B Phoenix
ph_phc_QpxgzwSjOVSvUsMZKDP1Y5iHyvoDpNDzWit120lI47y_posthog 388 B PostHog
ph_phc_QpxgzwSjOVSvUsMZKDP1Y5iHyvoDpNDzWit120lI47y_primary_window_exists 4 B PostHog
ph_phc_QpxgzwSjOVSvUsMZKDP1Y5iHyvoDpNDzWit120lI47y_window_id 38 B PostHog

Readiness Breakdown How?

⚠
Custom title and meta description (partial) missing custom <title>
✓ Open Graph tags (title, image, description)
✓ Twitter card meta tags
✓ Canonical URL declared
✓ Responsive viewport meta tag
✓ Favicon present
✓ Semantic HTML (nav, main, article)

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 (9 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 (6/6)

✓
Referrer-Policy
✓
X-Frame-Options via CSP frame-ancestors
✓
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

794ms response time
Faster than 17% of sites
4 third-party domains loaded

Build

✓ Code splitting
6 JS files
2 CSS files
4 Third-party domains

App Manifest

due.box
display: standalone 2 icons
theme #1d1d2b
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.