Ruler Online Free
Free online ruler to measure objects on your screen in centimeters, millimeters, and inches. Calibrate to your display, print rulers, and calculate screen PPI.
ruleronline.pro
· Added June 11, 2026
· Last analysed June 11, 2026 · via 
· 75% 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 11 June 2026; the live site may have changed since.
Ruler Online Free covers some of the launch checklist, with a thorough launch checklist and clean crawl signals. Visible gaps: missing several security headers, incomplete legal pages, and analytics without a consent banner.
Launched on Product Hunt on June 11, 2026. The site is hosted on Amazon.com in the United States. Our crawler found 8 technologies on this site, covering hosting, analytics, CSS frameworks, and frameworks. The stack includes Next.js, React, and Tailwind CSS.
Notably, it's one of just 11 launches we've crawled on this exact stack.
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Tech Stack (8)
| CSS framework |
Tailwind CSS
|
| Framework |
React
|
| Meta-framework |
Next.js
|
| Analytics |
Google Analytics
(4)
|
| Tag management |
Google Tag Manager
|
Infrastructure
Email Security
Storage (2)
| Name | Lifetime | Detected as |
|---|---|---|
| _ga | 1y | Google Analytics |
| _ga_2RXFXJLY9D | 1y | Google Analytics |
Readiness Breakdown How?
Performance How?
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 |
| Default scaffold favicon | +10 |
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.