Unicode Domain Warning icon

Unicode Domain Warning

Chrome Web Store

by ThioJoe

v1.2.1 Updated Dec 21, 2025 56.4KiB
5K
Users
★ 4.95
155 reviews
#693
of 15.5K
privacy
#14 of 159
Highly rated

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Description

Displays a warning page for domains with Unicode characters, to avoid potential "homograph" attacks or look-alike domains. Features: ✓ Displays and highlights the unicode characters ✓ Displays the ASCII "Punycode" version of the domain name ✓ Whitelist a website so it never shows the warning again ✓ Option to ignore certain unicode characters you specify ✓ Works on TLDs and subdomains How To Use: • If a warning is displayed, you can click a button to whitelist the domain, dismiss it for the current session, or go back. • To remove an existing whitelisted domain, right click the extension icon in the toolbar, then click "Options" / "Extension Options". • You can also set specific unicode characters that should be ignored in the same options menu. Privacy Notes: • No tracking, analytics, or usage data collection of any kind. • No External Requests: The extension runs entirely offline on your device; no data is ever sent to external servers. • Only your whitelisted domains and characters are stored in your browser's synced settings.
Unicode Domain Warning screenshot 1Unicode Domain Warning screenshot 2Unicode Domain Warning screenshot 3

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Permissions

storage Can store data locally in your browser

Details

Version 1.2.1
Updated Dec 21, 2025
Size 56.4KiB
First Seen Mar 21, 2026
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