VO2 Max Calculator
Calculate your VO2 max with 17 validated field tests: Cooper 12-minute run, 1.5-mile run, Rockport walk, Åstrand cycle, Bruce treadmill, and more. Free, no signup. Get percentile, category, and training guidance.
Estimated origin: United States
Added May 1, 2026
· Last analysed May 1, 2026 · via 
StackScope records what new websites are built with, the week they launch. Most we find ourselves, by watching public internet infrastructure for brand-new sites; the rest come from Product Hunt, Hacker News and PeerPush. We crawled this one for its tech stack and scored it for launch readiness: DNS, security headers, SEO basics. This page is what we saw on 1 May 2026; the live site may have changed since.
Every technology below links to its own page: which other new sites launched with it. Vendors and agencies watch those pages with Stackdar and hear about new adopters the week they ship, from £15 a month.
VO2 Max Calculator looks production-ready overall, with complete legal pages, a thorough launch checklist, and clean crawl signals. What needs work: missing several security headers and incomplete email security.
Launched on Product Hunt on May 1, 2026. The site is hosted on Railway and served through Cloudflare, with a domain registered 2 weeks before launch. We've detected 12 technologies on this site, covering advertising, analytics, CDN, and consent tooling. The stack includes Google Funding Choices, Next.js, and React.
It's running the same core stack as 593 other launches.
If you own this site, refresh the snapshot and see the full fix list any time →
Tech Stack (12)
| CDN |
Cloudflare
(3)
|
| DNS |
Cloudflare DNS
|
| Hosting |
Railway
(2)
|
| Protocol | HTTP/3 (2) |
| Email marketing |
Brevo
|
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
(4)
|
| Advertising |
Google AdSense
(2)
|
| Analytics |
Google Analytics
(3)
|
| Consent |
Google Funding Choices
|
| SEO |
Google Search Console
|
Infrastructure
Email Security
Storage (4)
| Name | Lifetime | Detected as |
|---|---|---|
| _ga | 1y | Google Analytics |
| _ga_3NHLKD2Q3W | 1y | Google Analytics |
| Key | Size | Detected as |
|---|---|---|
| google_auto_fc_cmp_setting | 3 B | Google Funding Choices |
| vo2-units | 8 B | - |
Readiness Breakdown How?
Vibe Score Breakdown How?
| Signal | Points |
|---|---|
| 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.