We have just set up a website (2 hours ago) and propagation of DNS seems to have gone fine....apart from Virgin nameservers.
Anyone know how often a refresh should occur?
I've has to use a VPN to bypass the Virgin nameservers, to access the website. (Tho thinking about it, I could probably have explicitly set the DNS explicitly in the network adapter to pick up Google’s...?)
Every ISP caches their own copy of the the registrars' master DNS recordsand reads from the cache instead of making a direct request to the domain registrar every time a request for your site is made. However, it can take up to three days before another cache is done.