What is googlesyndication?

Answer 1

I think it is Googles Advertisement server. It has come to the fore lately because they appear to be having problems with it, and it is having an adverse effect on page loading speeds.

You may see the following in the status bar of your browser something like this:

adserver2.googlesyndication

In addition you may also see a small box with "GoogleAnalytics" appear on the web page. This comes from the same server.

You can block both of these with a standard ad or script blocker.