Off-Grid Solar Calculator

Calculate your exact off-grid solar and battery requirements based on your specific appliances and location.

Added August 21, 2026 · Last analysed August 21, 2026 · via

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

Off-Grid Solar Calculator covers some of the launch checklist, with clean crawl signals. Visible gaps: missing several security headers, incomplete legal pages, and no email security records.

Launched on Product Hunt on August 21, 2026. The site is hosted on Amazon.com in the Netherlands. Our crawler found 7 technologies on this site, covering affiliate, AI builders, web fonts, and forms. The stack includes Framer, Google Fonts, and Google Search Console.

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

5.3

StackScope Score

Fair

78/100 Launch Readiness

Well prepared

2/6 Security Headers

Weak

0/3 Legal

Missing

2/2 Crawl files

Complete

92/100 Performance

Fast

Vibe Score 100 · Strong 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 (7)

Infrastructure

Security	HSTS

Build & Framework

Font	Google Fonts
JavaScript library	Motion

Analytics & Marketing

Affiliate	Impact
SEO	Google Search Console

Business Tools

Forms	Tally

AI & Emerging

AI builder	Framer (6)

Infrastructure

Network

AMAZON-02 - Amazon.com, Inc., US

AS16509 · NL

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 26 Jun 2026 to 24 Sep 2026

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

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 (0)

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

Readiness Breakdown How?

✓ Custom title and meta description

⚠

Open Graph tags (title, image, description) (partial) missing og:image

✓ Twitter card meta tags

✓ Canonical URL declared

✓ Responsive viewport meta tag

✓ Favicon present

- Semantic HTML (nav, main, article)

Performance How?

298 ms Server response

54% Faster than peers

224 ms Largest contentful paint

0.01 Cumulative layout shift

1.0 MB Page weight

12 KB Image weight

5 Third-party domains

0 Console errors

0 Failed requests

⚠ 1 images: 1 oversized, 1 missing alt text

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
Recognised AI builder signature	+100

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

Content-Signal

? No directive declared

Link headers

? None advertised

Well-Known Files

✓ robots.txt

✓ sitemap.xml (18 URLs)

✗ security.txt

✗ llms.txt

✗ ads.txt

✗ humans.txt

Legal

? Privacy Policy not detected

? Terms of Service not detected

Detection works best on English language sites.

Security Headers (2/6)

✗

Referrer-Policy

✗

X-Frame-Options

✗

Permissions-Policy experimental (check browser support)

✓

X-Content-Type-Options

✗

Content-Security-Policy

✓

Strict-Transport-Security

–

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

Build

3 JS files

0 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.