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CalcMonte

Mortgage calculator with amortization schedule, rent vs buy analysis, refinance break-even, compound interest calculator, and Monte Carlo investment simulator. Free, no signup.

Finance

Added April 6, 2026 · Last analysed April 10, 2026 · via Hacker News · 73% 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 10 April 2026; the live site may have changed since.

CalcMonte ships with the basics, with a thorough launch checklist, fast page loads, and clean crawl signals. Main gaps: missing several security headers, incomplete legal pages, and incomplete email security.

Launched on Hacker News on April 6, 2026. The site is served through Cloudflare, with a domain registered 5 weeks before launch. We've detected 7 technologies on this site, covering CDN, DNS providers, email forwarding, and web fonts. The stack includes cdnjs, Cloudflare, and Cloudflare DNS.

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

5.0
StackScope Score
Fair
100/100 Launch Readiness
Launch ready
0/3 Legal
Missing
2/2 Crawl files
Complete
Vibe Score 55 · Many 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 (3)
DNS Cloudflare DNS
Protocol HTTP/3 (2)
Email
Email forwarding Cloudflare Email Routing (2)
Build & Framework
Font Google Fonts
Package CDN cdnjs (2)
Analytics & Marketing
SEO Google Search Console

Infrastructure

Network
AS13335 · US
DNS
Cloudflare DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Domain Age
4 months
Registered Mar 2026 · Cloudflare, 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 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.

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 275 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.

Vibe Score Breakdown How?

SignalPoints
AI writing signals +5
AI iconography signals +5
AI code-structure signals +5
AI typography signals +5
AI CSS signals +15

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

robots.txt
sitemap.xml (1 URLs)
security.txt
llms.txt
ads.txt
humans.txt
? Privacy Policy not detected
? Terms of Service not detected
Detection works best on English language sites.

Security Headers (0/6)

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

Performance

104ms response time
Faster than 93% of sites
4 third-party domains loaded

Build

1 JS files
1 CSS files
4 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.