For Sale how often to analyze zone file?

[HeavyLifting]

for those of you in the know - just wondering how ofter you analyze zone files. considering the size of the file, i don't do it every day. am i missing out if i'm not having a look every day? seems to me that, due to the nature of things, you would end up with the same info, even if you zones are spread out a few days.

also wondering who might be able to recommend an efficient bulk whois checker - only need SRS data.

 

[clemzonguy]

Zone file is at least 1.6 gig uncompressed. Not all that helpful by itself. Usually it's best to just subscribe to services that do the work for you especially deleteddomains.com which is free and very useful.

 

[Bob]

I do analysis daily.

Lots of automation in place on my end

Yes, theoretically you can do it ever couple of days, but the analysis results become huge. It is bad enough doing them daily.

-Bob

 

[DotDuDe]

Daily script it! Make it automaticall and then drinking beer just filter out the good names

 

[chatcher]

Depends on what your goal is. If you want to be the first to have a list of deactivated domain names, you'll need to download and parse the zone files twice per day.

If you are using other methods to find expiring domain names, and just want to keep track of when they are deactivated or reactivated, just skip the zone files and do DNS NS queries against the gtld servers. For any reasonable number of domain names, it's faster (and updated before the zone files are available for download.)