Using high quality DNS hosting – with DNS servers around the world – it may be possible to speed up your website site load time.
The following is a list of DNS hosting/managed DNS providers. Some of the services can also cache key files around the world, again improving load time.
CloudFlare really is a unique service. CloudFlare provident DNS servers around the world, caching of key files, site-offline protection, as well as market leading security tools that keep away the spammers.
Installing CloudFlare can drastically reduce the load on a server as it blocks spammers from even reaching your servers.
Google Page Speed Service
Google have launched Page Speed Service – which hosts DNS for a website.
At present availability is limited, but wow – this could be big.
Neustar offer DNS hosting as well as DDoS/security protection.
Neustar have some quality DNS tools on their www.UltraTools.com website.
Dyn.com can provide hosting from up to 17 global DNS servers.