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Dubbl

Free, open-source double-entry accounting with invoicing, bills, payroll, inventory, projects, and CRM. Self-host or use our cloud.

dubbl.dev · Added June 7, 2026 · Last analysed June 7, 2026 · via Hacker News · 60% 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 7 June 2026; the live site may have changed since.

Dubbl has the basics covered well, with complete legal pages, a thorough launch checklist, and clean crawl signals. Visible gaps: missing several security headers and incomplete email security.

Launched on Hacker News on June 7, 2026. The site is hosted on Cloudflare in the United States, with a domain registered 3 months before launch. Our crawler found 12 technologies on this site, covering auth, CDN, CSS frameworks, and DNS providers. The stack includes Auth.js, Next.js, and React.

Notably, it's on one of the most common stacks we track, shared by 302 launches.

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

6.8
StackScope Score
Good
88/100 Launch Readiness
Launch ready
3/3 Legal
Complete
2/2 Web Standards
Complete
Vibe Score 40 · Some AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (12) · Indie stack

Infrastructure
CDN Cloudflare
DNS Cloudflare DNS
Hosting Railway
Protocol HTTP/3
Email
Business email Cloudflare Email Routing
Transactional email Resend
Build & Framework
Auth Auth.js
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js
UI library shadcn/ui
Analytics & Marketing
SEO Google Search Console

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
SSL Certificate
Google Trust Services
Valid 13 May 2026 to 11 Aug 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
3 months
Registered Mar 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.

Storage (2)

Cookies (2)
NameLifetimeDetected as
__Host-authjs.csrf-token session Auth.js
__Secure-authjs.callback-url session Auth.js

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)
Page title is 61 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.
Meta description is 165 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

Vibe Score Breakdown How?

SignalPoints
AI CSS signals +10
AI copy signals +5
AI palette signals +5
AI writing 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

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

Well-Known Files

sitemap.xml (5 URLs)
security.txt
llms.txt
ads.txt
humans.txt
92% unique

Security Headers (0/6)

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

Performance

393ms response time
Faster than 47% of sites
1 third-party domains loaded

Build

HTML minified
CSS minified
JS minified
Code splitting
18 JS files
2 CSS files
1 Third-party domains

Brand Colours

App Manifest

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