Privacy Policy
Launch Readiness Checker - Chrome Extension
Last updated: February 3, 2026
Overview
Launch Readiness Checker is a browser extension that analyzes web pages for launch readiness. This privacy policy explains how we handle information.
Data Collection
We do not collect, store, or transmit any personal data.
The extension operates entirely locally in your browser. All page analysis is performed on your device, and no information is sent to our servers or any third parties.
What the Extension Does
When you use Launch Readiness Checker, it:
- Analyzes the current page - Reads HTML content, meta tags, and page structure of the active tab when you click the extension icon
- Checks public DNS records - Queries public DNS services (Cloudflare DNS) to verify email authentication records (SPF, DKIM, DMARC)
- Checks SSL certificates - Queries public certificate transparency logs (crt.sh) to verify SSL certificate status
- Fetches public files - Requests robots.txt and sitemap.xml directly from the website being analyzed
- Checks domain history - Queries the Internet Archive's Wayback Machine API for domain age information
All of these operations:
- Are performed directly from your browser
- Do not pass through our servers
- Do not store any data persistently
- Are only triggered when you actively use the extension
Permissions Explained
| Permission | Why it's needed |
|---|---|
activeTab | To analyze the currently active tab when you click the extension |
scripting | To extract page elements for analysis |
webRequest | To capture HTTP response headers for security analysis |
storage | To temporarily cache results during your session (cleared when browser closes) |
host_permissions | To fetch robots.txt, sitemap.xml, and DNS/SSL information |
Third-Party Services
The extension makes requests to the following public services:
- Cloudflare DNS (1.1.1.1) - for DNS record lookups
- crt.sh - for SSL certificate information
- Internet Archive - for domain age checks
These services have their own privacy policies. We do not control how they handle requests.
Data Security
Since we don't collect any data, there is no data to secure. All analysis happens locally on your device.
Changes to This Policy
We may update this privacy policy from time to time. We will notify users of any changes by updating the "Last updated" date.
Contact
If you have questions about this privacy policy, please contact us at:
- Email: support@ybuild.ai
- Website: https://ybuild.ai