TTL (Time To Live) For Mapped Domains

  • Unknown's avatar
    macusercom · Member ·

    I know that you cannot change the TTL of a mapped domain with WordPress.com but there has to be a standard time to live defined. Is it 24 hours “86400”?

    The blog I need help with is: (visible only to logged in users)

  • Unknown's avatar
    timethief · Member ·

    I am not convinced that I comprehend what you are asking.

    It can take as long as 72 hours for DNS changes to become widely available. It is not unusual for the last place to flush their DNS caches to be your own ISP. You can view the DNS changes here > http://www.whatsmydns.net/ What’s important during this stage is to be patient. If you’re still not seeing your site loading at your domain URL then wait a few more hours, clear your browser cache, http://en.support.wordpress.com/browser-issues/#clear-your-cache-and-cookies and try again.

  • Unknown's avatar
    macusercom · Member ·

    There is a certain TTL value which can be between 60 seconds and 86400 seconds (1 day). This states how long the DNS record will be kept until it asks the DNS server again if there is any new value.

    E.g. if it is 86400 and I change my DNS settings, it can take up to 24 hours for any DNS server to apply my settings. If it is 60 seconds theoretically, every minute the DNS cache will be flushed and the new settings will be used.

    As you cannot change this TTL value in WordPress.com (for mapped domains) I just want to know what the configured TTL is.

  • Unknown's avatar
    timethief · Member ·

    Thanks for expanding. That has never been an issued for me nor has it even crossed my mind, but not to worry as Staff will respond as soon as they answer threads tagged prior to this one being tagged.

  • supernovia · Staff ·

    Hi @macusercom, we usually set the TTL to 300. You might be still seeing the effects of having a longer TTL before pointing the domain here.

    Re: the 72 hour propagation tag, if you’re having trouble with propagation, try clearing your DNS cache and checking in with your ISP to see if they can clear theirs too. I checked here and it seems to pointing to the right addresses in most locations. Good luck!

  • Unknown's avatar
    macusercom · Member ·

    @supernovia Thanks for the answer! This is actually quite low but absolutely fine. That’s what I wanted to know! :)

  • supernovia · Staff ·

    Yeah, we know people like to make relatively fast updates to their DNS here.

    Cheers, @macusercom !

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