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Confidence

A simple confidence calculator for A/B tests. Calculate confidence levels, p-values, power, uplift, visitor needs and Bonferroni-adjusted thresholds without pretending you need to be a data scientist.

confidence.nickyreinert.de · Added June 25, 2026 · Last analysed June 25, 2026 · via Hacker News · 50% 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 25 June 2026; the live site may have changed since.

Confidence still has work before launch. Main gaps: missing several security headers, incomplete legal pages, and no robots.txt or sitemap.

Launched on Hacker News on June 25, 2026. The site is hosted on Fastly in the United States. The crawl picked up 4 technologies on this site, covering CDN, hosting, javascript library, and package cdn. The stack includes Chart.js, Fastly, and GitHub Pages.

For context, it's on one of the most common stacks we track, shared by 1,345 launches.

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

Vibe Score 35 · Some AI signals
Informational pattern-match signal. Does not feed the StackScope Score. See which fingerprints fired →

Tech Stack (4)

Infrastructure
CDN Fastly
Hosting GitHub Pages
Build & Framework
JavaScript library Chart.js medium
Package CDN jsDelivr

Infrastructure

Network
AS54113 · US
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 24 Jun 2026 to 22 Sep 2026
Certificate as captured in this snapshot, not a live check.

Email Security

SPF -all (via apex nickyreinert.de) Strict (-all). Strong.
?
DKIM Not detected at common selectors. Your provider may use a custom one.
DMARC p=none (via apex nickyreinert.de) None (p=none). Monitoring only.
?
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 (0)

This site uses no client-side storage we could detect on page load.

Readiness Breakdown How?

Custom title and meta description
Responsive viewport meta tag
Semantic HTML (nav, main, article)
Meta description is 200 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.
- Open Graph tags (title, image, description)
- Canonical URL declared
- Twitter card meta tags
- Favicon present

Performance How?

326 ms Server response
53% Faster than peers
460 ms Largest contentful paint
0.00 Cumulative layout shift
423 KB Page weight
1 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
AI code-structure 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
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)

Build

Code splitting
4 JS files
1 CSS files
1 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.