Unusual HEAD requests to nonsense URLs from Chrome

Solution 1:

This is actually legitimate behaviour. Some ISPs improperly respond to DNS queries to non-existent domains with an A record to a page that they control, usually with advertising, as a "did you mean?" kind of thing, instead of passing NXDOMAIN as the RFC requires. To combat this, Chrome makes several HEAD requests to domains which cannot exist to check how the DNS servers resolve them. If they return A records, Chrome knows to perform a search query for the host instead of obeying the DNS record so that you are not affected by the ISPs improper behaviour. [1]

Solution 2:

In working with Microsoft regarding this issue and how IE9 behaves, we have found information from Verizon in how to opt out of this service. They call it "DNS Assistance". In working with another user on this issue who has BrightHouse ISP in FL,they have the same thing going on. But, they too, provide information on how to opt out of this service. I like how they call it a service. :)