CalcNovaHub

224+ free calculators with formulas, worked examples, and expert explanations. Finance, health, math, business, legal, construction, science, and cooking.

calcnovahub.com · Added June 17, 2026 · Last analysed June 17, 2026 · via · 83% unique tagline

Own this Launch?

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 17 June 2026; the live site may have changed since.

CalcNovaHub scores well across the board, with complete legal pages, a thorough launch checklist, and fast page loads. Main gaps: missing several security headers, tracking cookies set before any opt-in, and incomplete email security.

Launched on Product Hunt on June 17, 2026. The site is hosted on Cloudflare in the United States, with a domain registered 5 weeks before launch. Our crawler found 12 technologies on this site, covering analytics, advertising, affiliate, and CDN. The stack includes CJ Affiliate, Cloudflare, and Cloudflare DNS.

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

8.6

StackScope Score

Excellent

100/100 Launch Readiness

Launch ready

3/6 Security Headers

Decent

3/3* Legal

Complete*

2/2 Web Standards

Complete

90/100 Performance

Fast

Vibe Score 38 · Some AI signals

Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (12)

Infrastructure

CDN	Cloudflare
DNS	Cloudflare DNS
Protocol	HTTP/3

Business email	Namecheap Email Forwarding (2)

Build & Framework

Font	Google Fonts

Analytics & Marketing

Advertising	Pinterest
Affiliate	CJ Affiliate
Analytics	Cloudflare Web Analytics
	Google Analytics (4)
	Microsoft Clarity (2)
SEO	Google Search Console
Tag management	Google Tag Manager

Infrastructure

Network

CLOUDFLARENET - Cloudflare, Inc., US

AS13335 · US

DNS

Cloudflare DNS

Authoritative nameserver

DNSSEC

Not enabled

DNS responses unsigned. Cache-poisoning vulnerable.

SSL Certificate

Google Trust Services

Valid 12 May 2026 to 10 Aug 2026

Certificate as captured in this snapshot, not a live check.

Domain Age

1 month

Registered May 2026 · NameCheap, 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.

Storage (2)

Cookies (2)

Name	Lifetime	Detected as
_ga	1y	Google Analytics
_ga_KHKDF84JQF	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)

⚠

Meta description is 205 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.

Performance How?

144 ms Server response

82% Faster than peers

484 ms Largest contentful paint

0.01 Cumulative layout shift

1007 KB Page weight

5 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?

Signal	Points
Placeholder branding	+10
AI palette signals	+5
AI writing signals	+5
AI iconography signals	+3
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

Blocks AI crawlers

✗ llms.txt published

✗ 9 AI bots blocked in robots.txt

Content-Signal

✗ ai-train = no

✓ search = yes

? ai-input (not declared)

Link headers

? None advertised

Well-Known Files

✓ robots.txt

✓ sitemap.xml (239 URLs)

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

✓ Privacy Policy

✓ Terms of Service

? Consent manager not detected

Analytics detected; tracking fires without visitor opt-in.

88% unique

Mentions:

GDPR CCPA Cookies Do Not Sell Updated: May 30, 2026

Security Headers (3/6)

✓

Referrer-Policy

✗

X-Frame-Options

✗

Permissions-Policy experimental (check browser support)

✓

X-Content-Type-Options

✓

Content-Security-Policy ⚠ CSP violation detected: your policy is blocking 1 of your own resource

✗

Strict-Transport-Security

–

X-XSS-Protection deprecated (use Content-Security-Policy)

Build

✓ Code splitting

5 JS files

2 CSS files

5 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.