New: The State of Indie Launches: July 2026. The framework layer is the same everywhere. The payment layer is not. Read

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LizoCalc

Professional online calculators for all your calculation needs

Added August 12, 2026 · Last analysed August 12, 2026 · via

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

LizoCalc ships with the launch fundamentals in place, with complete legal pages, a complete set of security headers, and a thorough launch checklist. What needs work: tracking cookies set before any opt-in and no email security records.

Launched on Product Hunt on August 12, 2026. The site is hosted on Vercel, with a domain registered 4 months before launch. Our crawler found 12 technologies on this site, covering analytics, ui library, CSS frameworks, and DNS providers. The stack includes Next.js, React, and Tailwind CSS.

It's also running the same core stack as 12,967 other launches and tighter on security headers than most Product Hunt launches.

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

10.0
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3* Legal
Complete*
2/2 Crawl files
Complete
Vibe Score 28 · Some 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 (12)

Infrastructure
DNS Hostinger DNS
Hosting Vercel
Security HSTS
Build & Framework
CSS framework Tailwind CSS
Framework React
Meta-framework Next.js (5)
UI library Lucide Icons
shadcn/ui
Analytics & Marketing
Analytics Google Analytics (6)
Vercel Analytics medium
SEO Google Search Console
Tag management Google Tag Manager (4)

Infrastructure

Network
AS16509 · US
DNS
Hostinger 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 29 Jul 2026 to 27 Oct 2026
Certificate as captured in this snapshot, not a live check.
Domain Age
4 months
Registered Mar 2026 · Hosting Concepts B.V. d/b/a Registrar.eu

Email Security

SPF Not published. Your domain can be spoofed in phishing emails.
?
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.

Storage (2)

Cookies (2)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_W122RNR3R4 1y Google Analytics

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?

83 ms Server response
94% Faster than peers
504 ms Largest contentful paint
0.00 Cumulative layout shift
361 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 +3
AI stack signals +10

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

Blocks AI crawlers but publishes an llms.txt
llms.txt published
12 AI bots blocked in robots.txt
? No directive declared
? None advertised

Well-Known Files

robots.txt
sitemap.xml (71 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy
Terms of Service
/terms
? Consent manager not detected
Analytics set tracking cookies on our visit, with no opt-in step.
88% unique

Security Headers (6/6)

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

Build

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

Brand Colours

App Manifest

LizoCalc - Free Online Calculators
display: standalone 1 icon
theme #0d111f
productivity education
Something not look right? If a technology shown here is wrong or out of date, email [email protected] and we'll review it.