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UseCOS

Use free, privacy-first Canadian mortgage, tax, GST/HST, VIN, landlord, and legal-procedure tools with source-backed methodology and no signup.

Finance

Added August 26, 2026 · Last analysed August 26, 2026 · via Hacker News

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 26 August 2026; the live site may have changed since.

UseCOS scores highly overall, with a complete set of security headers, a thorough launch checklist, and fast page loads. Main gaps: incomplete legal pages and incomplete email security.

Launched on Hacker News on August 26, 2026. The site is hosted on Vercel, with a domain registered 9 months before launch. The crawl picked up 15 technologies on this site, covering ui library, ai service, analytics, and CSS frameworks. The stack includes Next.js, React, and Tailwind CSS.

For context, it's on one of the most common stacks we track, shared by 14,159 launches and more locked down than the typical Hacker News launch.

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

9.0
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
2/3 Legal
Partial
2/2 Crawl files
Complete
Vibe Score 20 · 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 (15)

Infrastructure
DNS Namecheap DNS
Hosting Vercel
Security HSTS
Email
Business email PrivateEmail
Email forwarding Namecheap Email Forwarding (2)
Email marketing Brevo
Build & Framework
CSS framework Tailwind CSS
Framework React
JavaScript library Motion
Meta-framework Next.js (5)
UI library Lucide Icons
shadcn/ui
Analytics & Marketing
Analytics Umami (4)
SEO Google Search Console
AI & Emerging
AI service OpenAI

Infrastructure

Network
AS16509 · 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 2 Aug 2026 to 31 Oct 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
9 months
Registered Nov 2025 · Namecheap Inc.

Email Security

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

Performance How?

123 ms Server response
81% Faster than peers
708 ms Largest contentful paint
0.00 Cumulative layout shift
609 KB Page weight
2 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
AI CSS signals +10
AI palette signals +5
AI writing 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 (138 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
? Terms of Service not detected
? Analytics present, but it set no tracking cookies on our visit (it may be opt-in-gated).
88% unique

Security Headers (6/6)

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

Build

Code splitting
18 JS files
2 CSS files
2 Third-party domains

Brand Colours

App Manifest

usecos.app | Financial Calculators and VIN Tools
display: standalone 3 icons
theme #22c98a
utilities finance
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.