v148 · Security · Internationalized Domain Names
Domain Security Auditor
Enter an IDN domain (or pick a preset) and get a full security audit: IDNA decoding step-by-step, ContextJ rule application, visual similarity analysis, and Chrome 148 verdict.
Domain under analysis
Presets
IDNA decoding steps
Run an audit to see decoding steps.
ContextJ rule application
Run an audit to see rule application.
Character breakdown
Run an audit to see character analysis.
Homograph attack gallery
Five famous IDN homograph attacks and whether Chrome 148 blocks them via ContextJ rule enforcement.
| Attack domain | Looks like | Attack technique | Chrome 148 blocks? |
|---|---|---|---|
| аpple.com | apple.com | Cyrillic 'а' (U+0430) vs Latin 'a' | — mixed-script, not ContextJ |
| example.com | example.com | ZWJ (U+200D) between Latin chars | ✓ blocked by ContextJ rules |
| example.com | example.com | ZWNJ (U+200C) between Latin chars | ✓ blocked by ContextJ rules |
| paypal.com | paypal.com | ZWNJ inserted inside a known brand | ✓ blocked by ContextJ rules |
| gооgle.com | google.com | Cyrillic 'о' (U+043E) × 2 | — mixed-script detection, not ContextJ |
see also
implementation reference
Need the exact API surface, compatibility boundaries, errors, lifecycle, and source links? Read the matching gendn reference ↗