The Time To Live (TTL) setting in your website's zone file states how long nameservers (which have the job of hunting down the location of the website you wish to navigate to) cache your zone file for. Zone files do not always change that frequently, and so to reduce traffic across the internet and speed things up nameservers will "cache" a zone file after retrieving it. When another requests comes in for that website they will simply use the saved version of the zone file.
However, in order to update its records in case of any changes to the zone file, it will seek out a new version of the zone file once the Time To Live value has been reached. TTL is measured in seconds, for example a value of 86400 means that the zone file will need to be updated 24 hours after the nameserver originally cached it. Lower TTL values are useful if values in your zone file are changing frequently.
Our web hosting services provides you with the flexibility to change the TTL value for individual records in your zone file.
After logging in select Manage Website from the websites box (if you have more than one website hosted with Gradwell you will have to choose the correct one using the dropdown box).
On the next page, click DNS.
You will see a summary of your DNS settings. Select DNS Records to see your zone file records, including the current TTL values.
To edit an entry, click on the record you wish to edit.
If you click a system record that was created when your hosting service was setup then you will see the following message:
In this instance, you will need to create a new one with the same host and record data values to set a custom TTL value and disable the original record. For more assistance with creating custom zone records please see this guide.
If you click into a record that can have a custom TTL value set, then you will see an Edit button. Click this to change the current values.
Enter your required Time To Live value in seconds in the TTL field and then click Submit to save your changes. In the example below, the TTL value is set to ten hours.