Extended Validation Secure Socket Layer

What Does Extended Validation Secure Socket Layer Mean?

Extended verification Secure Socket Layer (EVSSL) is an enhanced version of SSL which utilizes the same security levels as conventional SSL certificates. However, it has a more extensive verification requirement imposed by the certificate authority (CA) upon the requestor of the certificate.


These extra requirements on the part of the requestor are the “EV” in EVSSL. Because of this extra layer of verification, only truly trustworthy organizations can and will pass the verification process, hence EVSSL certificates are considered to be most trusted option available for SSL certificates.

Techopedia Explains Extended Validation Secure Socket Layer

Extended verification Secure Socket Layer is more trusted than all previous forms of SSL certificate, and it separates itself from other certificates through a visual indication in a web browser’s address bar, which indicates that the website, or at least the entity that owns it, has undergone and passed extensive and increased security verification measures.

The visual indicator of EVSSL is usually the name of the company that owns the website located on the address bar of the web browser. For example on Chrome, the visual indicator is a green bar directly to the left of the address before the “http” and appears separate from the address bar, which remains white. On Internet Explorer, however, EVSSL is indicated with the whole address bar turning green and the name of the company to the rightmost portion of the address bar.

Browsers that support EVSSL display more information, which includes:

  • The name of the organization or entity which owns the website and certificate
  • The name of the certification authority who issued the certificate
  • A distinctive green coloring to the address bar or parts of it

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Margaret Rouse
Technology Expert

Margaret is an award-winning technical writer and teacher known for her ability to explain complex technical subjects to a non-technical business audience. Over the past twenty years, her IT definitions have been published by Que in an encyclopedia of technology terms and cited in articles by the New York Times, Time Magazine, USA Today, ZDNet, PC Magazine, and Discovery Magazine. She joined Techopedia in 2011. Margaret's idea of a fun day is helping IT and business professionals learn to speak each other’s highly specialized languages.