As Hans said changing DNS server would be one quick way to check (but I don't know why anyone would want to use Google DNS in the long run, unless they already run Android or Chrome on all devices


(Wonder if proxy settings would have an impact on this?)
What if you use nslookup? How about trying as a test, not changing anything, looking up the address using another DNS server.
Type and press Enter in a command prompt: nslookup lanark.co.uk 8.8.8.8
This will look up the address using Google's DNS server.
The command below will use the DNS server you currently use. I'm not good at nslookup, but if you have a router that is set to use, for example, your ISP's DNS server, and your computer use the router as DNS then you might not get a response (request time out). (See if Stuart might want to comment.)
nslookup lanark.co.uk