DNSSEC Validator
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Shows DNSSEC status

DNSSEC Validator is an add-on for the web browser, which allows you to check the existence and validity of DNSSEC DNS records for domain names in the address of the page currently displayed in your browser window. The result of this check is displayed using colour keys and information texts in the page’s address bar. IMPORTANT! This add-on communicates with an external binary application through the native messaging interface. The binary application is required for correct working of the add-on. The binary can be downloaded from www.dnssec-validator.cz/pages/download.html#package. Keep in mind that the version of the binary and of the extension must match.

3.8 out of 528 ratings

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Doc FlayJun 3, 2018

Since October 2018 development has ended https://www.dnssec-validator.cz/2018-10-16-end-of-support.html An experimental build is available that should work again.

2 out of 2 found this helpful
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Arnout RuigrokApr 19, 2018

Worked like a charm after installing validator package in the background: https://www.dnssec-validator.cz/pages/download.html#package

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Thomas BennekDec 4, 2017

One of the best security tools! Please keep the support up!


  • Version
  • Updated
    September 4, 2014
  • Offered by
    CZ.NIC Labs
  • Size
  • Languages
    4 languages
  • Non-trader
    This developer has not identified itself as a trader. For consumers in the European Union, please note that consumer rights do not apply to contracts between you and this developer.


The developer has not provided any information about the collection or usage of your data.


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