Extension help
Short, step-by-step guides for the CubDomain extension in Chrome, Edge, Firefox, Opera and Brave — each with screenshots.
Popular guides
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Getting started
- How to install CubDomain in Chrome, Edge or Firefox (coming soon)
- How to pin the extension to your toolbar (coming soon)
- How to sign in to the extension (coming soon)
- How to open the side panel (coming soon)
Safety & scams
- How to check if a website is safe
- How to spot a fake or look-alike website (coming soon)
- What to do when CubDomain warns you (coming soon)
- What the safety score means (coming soon)
SSL & security
- How to check a website’s SSL certificate (coming soon)
- Why a site says “Certificate expiring” (coming soon)
- How to see a site’s security headers (coming soon)
SEO & page checks
- How to check a page’s meta title and description (coming soon)
- How to find the canonical URL of a page (coming soon)
- How to check if a page can be indexed by Google (coming soon)
Domain & hosting
- How to find out who owns a website (coming soon)
- How to check when a domain was registered (coming soon)
- How to see where a website is hosted (coming soon)
- How to check if a website is down for everyone
- How to look up any domain or IP address
Bookmarks
- How to find broken bookmarks (coming soon)
- How to remove duplicate bookmarks (coming soon)
- How to find bookmarks for sites that are now for sale (coming soon)
- How to save all open tabs as a bookmark folder
Time tracking
- How to track time spent on websites (coming soon)
- How to set a daily limit for a site (coming soon)
- How to delete your time tracking data (coming soon)
Account & privacy
- What data the extension sends to CubDomain (coming soon)
- How to sync your data to your account (coming soon)
- How to remove the extension and your data (coming soon)
Guides without a link are still being written.
Still stuck?
Email [email protected] with your browser and what you were trying to do. Screenshots help.