Meta tags - are they case sensitive?

[Bio-RadAbs]

I just ran the wordtracker tool and noticed something interesting. The tool didn't pick up our meta description.

It's strange as our meta descriptions appear in organic search results and Moz never reported missing meta descriptions.After reviewing other pages,  I noticed our meta description tag is written as the following:

name="Description" content="

I never thought about this, but are meta tags case sensitive? Should it be written as:

name="description" content="

Thoughts?

[AndersS]

Hi!

According to http://www.w3.org/TR/html-markup/documents.html#case-insensitivity HTML tags are not case sensitive, but it could be that your tracker software is looking for all lowercase, as this is  considered good coding practice. Is it possible to configure in the tracking tool, perhaps?

[Bio-RadAbs]

It's the wordtracker chrome add-on called scout. I was using it to find high performing keywords and decided to run it on my own site.That's when I noticed no meta description being highlighted. There are no settings in the add-on though

I did some more reading and w3.org states it is good practise to use lower case for all HTML elements and attribute names, so I'm going to change it. http://www.w3.org/TR/xhtml1/#h-4.2

Better to follow good practice than bad.