Just after some advice. I have been lending a helping hand to a family member who has been working on a small website, which is showing some promising growth in his field. We are looking at moving the website to another server.
Now I have noticed a number of websites using a seperate DNS service then their host. Such as OpenDNS or SecretDNS or similar, they enter these services in as their domain's nameserver. I would assume the next process is to login to the control panel of such a service, and have it point the domain to your actual webhost's nameservers.
Am I correct in thinking this?
Secondly moving forward, if you were to change webhosts you would simply update where the nameservers are pointing to in OpenDNS, and be able to instantly point the domain to the new server with no downtime?
I'm feeling around, I have never used such a service. And I may be a number of strokes off the playing field
Whatever service you use...DNS propagation delay will be there.
Just 48 hours before the transfer ...change all TTL values to very low values in your zone file.The TTL tells other DNS servers how much time to cache the particular Resource Record and the larger it is the larger is the propagation delay
For commercial and Free 3rd party DNS service providers; do a googling and you will get many results
I dont know much info about them as i havent used them except a free DNS provider called xname.org(for which i dont have a problem till now)
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However referring to a 3rd party is not necessary , there are 2 options for fast website transfer , reducing TTL time for each record if you have access to them or temporarily forwarding A and MX records to new values , also you can use a combination of both methods.