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VO2 Max Calculator by MegaCalcOnline

Free VO2 max calculator: estimate your VO2max using the Cooper 12-minute run, Rockport 1-mile walk, or heart rate ratio method. Metric and imperial supported.

Health
Australia Estimated origin: Australia

Added August 25, 2026 · Last analysed August 25, 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 25 August 2026; the live site may have changed since.

VO2 Max Calculator by MegaCalcOnline scores highly overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. Main gaps: no Permissions-Policy and incomplete email security.

Launched on Product Hunt on August 25, 2026. The site is hosted on Hostinger, with a domain registered 11 weeks before launch. We've detected 11 technologies on this site, covering advertising, analytics, consent tooling, and DNS providers. The stack includes Google Funding Choices, Google Ads, and Google AdSense.

It's on one of the most common stacks we track, shared by 1,216 launches and more locked down than the typical Product Hunt launch.

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

9.5
StackScope Score
Excellent
100/100 Launch Readiness
Launch ready
3/3 Legal
Complete
2/2 Crawl files
Complete
Vibe Score 5 · 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 (11)

Infrastructure
DNS Hostinger DNS
Hosting Hostinger (2)
Protocol HTTP/3
Security HSTS
Email
Business email Hostinger Email
Analytics & Marketing
Advertising Google Ads
Google AdSense (3)
Analytics Google Analytics (4)
Consent Google Funding Choices
SEO Google Search Console
Tag management Google Tag Manager (2)

Infrastructure

Network
AS31400 · DE
DNS
Hostinger DNS
Authoritative nameserver
DNSSEC
Not enabled
DNS responses unsigned. Cache-poisoning vulnerable.
Green hosting
Green hosted
Host runs on renewable energy. 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
2 months
Registered Jun 2026 · GoDaddy.com, LLC

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 (3)

Cookies (2)
NameLifetimeDetected as
_ga 1y Google Analytics
_ga_Y46F7WP5D8 1y Google Analytics
Local storage (1)
KeySizeDetected as
google_auto_fc_cmp_setting 3 B Google Funding Choices

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)
Page title is 67 characters (advisory) Google only shows about 60 characters of the title in search results; aim for 50–60 to keep the whole thing visible.

Performance How?

267 ms Server response
54% Faster than peers
740 ms Largest contentful paint
0.00 Cumulative layout shift
497 KB Page weight
0 KB Image weight
3 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 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 (547 URLs)
security.txt
llms.txt
ads.txt
humans.txt
Privacy Policy
/privacy/
Terms of Service
/terms/
Consent manager: Google Funding Choices
82% unique

Security Headers (5/6)

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

Build

3 JS files
1 CSS files
3 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.