Check your internet connection. Make sure that you are connected to the internet and that your connection is working properly. You can check your internet connection by opening a different website or by running a speed test. Disable your antivirus software, check to see if the website loads.

Though Google is the world's most used search engine, most if its revenues come from advertising products and services. Google Advertising is a catchall for the various marketing platforms from Google. googleadservices.com is associated with the Google Marketing application.

First, googleadservices.com is not spam. If you see referral traffic (and for me, conversions) coming from googleadservices.com, I'd recommend not filtering it out in Google Analytics, at least for the time being. Second, it does have something to do with Google's Display network.