There is no major list for when DNS
servers update. Basically, it works like this....
Part of your DNS records has
information on how long to store information on a DNS server once it is
gathered. The remote DNS server (ie, Earthlink's) takes the information as
a "recommendation". Most DNS servers will go by this recommendation.
However, there are quite a few DNS servers out there that will ignore the
recommendation. Generally, the servers that disregard the recommended time
will update with new information only after a time configured by their
administrator. In most cases, this will be about 24-48 hours.
However, some ISPs may lengthen these times for whatever reason or possibly due
If you are not seeing updates as
quickly as you'd like, have your ISP set the information in the SOA portion of
your DNS record to be short lived. If the current information is set to 30
days, some DNS servers may not see your new information until after 30 days and
there may be little you can do about the current state. Ask
your current DNS provider to set your TTLs for your domain to 24-48 hours
to alleviate this type of problem in the future. If they don't know how to
do this, you may want to arrange for a new DNS provider.
Director of Network Operations
A SiteStream Company
22 Mauchly, Suite 200
Phone: (949) 743-2000
I was wondering if anybody knew when most DNS
servers update their records with regard to changes in DNS hosts for a
domain. I've made changes to my domain, and it looks like only a handful
of DNS servers (earthlink being one of them that I could find) have actually
made the changes. I've heard that the turnaround time is normally 24-48
hours for the changes to take effect, yet it seems that it takes FOREVER for
anything to ever happen when I have NSI update the records for the site.
Is there a reference on the net somewhere containing when some of the major
DNS servers update their records, or does anybody have any idea why it always
takes so long?