Hi. Moving Average charting is definitely available on the desktop site.

When on a stock quote page, click "Advanced Chart", and then the "Fx" button. This will lead to a drop down list of numerous technical indicators that you can apply to the chart.

There was a temporary tech issue with the website.

Please log out and log back in. If that doesn't work, please choose "Contact Support" in the top left hand corner drop down box to report the issue you are continuing to have.