Detect punycode

JavaScript libraries

A robust Punycode converter that fully complies to RFC 3492 and RFC 5891, and works on nearly all JavaScript platforms.

01

Websites using punycode

32 hostnames in the PluginView corpus for this technology.

HostnameLast seen
pastemagazine.com8/3/2026
visualcapitalist.com8/3/2026
keywordseo.com.tw8/3/2026
wpforms.com8/3/2026
etracker.com8/3/2026
02

What a detection means

Establishes
One or more public signals on the scanned page matched a known punycode signature at the time of the scan.
Does not establish
A sitewide install of punycode, an active vendor contract, exclusive use, or that punycode is still in place today.
03

How to check a site for punycode

  1. 1. Enter the website URL in the scan form — homepage, pricing, checkout, or login pages usually expose the strongest punycode signals.
  2. 2. PluginView reads only public responses and scores them against proprietary punycode fingerprints. Rule bodies and identifiers are not published.
  3. 3. Review the confidence score and text explanation for punycode on the results page.
04

FAQ: detecting punycode

Can PluginView detect punycode without logging in?
Yes. PluginView only reads publicly accessible responses when checking for punycode. It does not bypass authentication or paywalls.
What category is punycode?
punycode is classified under JavaScript libraries in the PluginView directory.
Does PluginView publish punycode fingerprint rules?
No. Detection uses proprietary fingerprint rules that are not published. Scan results explain matches in plain language without disclosing rule bodies or identifiers.

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