Sunday, July 18, 2010

What is SHVA Parameter of Gmail URL

Have you ever noticed the Gmail’s address with a parameter called “SHVA”? This is a million dollar question ever since Google launched a new version of Gmail in 2007. Although it is not an important topic, yet some of us are curious that what does the SHVA parameter in the new Gmail URL and what does it stand for. Every one knows Gmail is not an Open-Source program to track the code. However, every website is trying to make the URL shorter so they ideally shouldn’t add redundant data to the URL.

According to Mike Sego, a former Gmail engineer, "shva" is an acronym for "should have valid authentication". Apparently, the parameter is only included after a successful authentication. If you think beyond the limitation, let us know the meaning of the SHVA code.