I was doing some research, collating some transactional data from the past to attempt to piece together exactly how much I had spent on domain names over the past eight years.

I decided that it would be nigh on impossible to extract all my renewal data from the 50,000 emails I have received over the time period, and as such I decided that to get a 'best guesstimate' as to how much I had spent on renewals I would use the wholesale prices.

The wholesale prices of domains are the prices at which the registries (Verisign for .com and .net, PIR for .org, Afillias for .info, and Neustar for .biz and .us) sell registrations to registrars, the companies with whom the public tend to interact.

Registrars (such as Godaddy) then tend to mark up these prices to sell registrations to the consumer. As such my calculations utilizing wholesale costs would be an underestimate of what I had actually spent.

As such I went about trying to search for data on the wholesale prices of the various main extensions in which we have previously invested. To my dismay this data was extremely difficult to find. I did eventually find the data I was looking for, and such that no-one else has to go through the tedium of finding it, I thought I'd post it here.

As far as my understanding goes, the respective registries set a price that registrars have to pay. The registrars also have to pay an ICANN fee which varies from extension to extension.

I have listed the base registry rates and the dates they went into effect. The ICANN fees (where applicable) are noted next to the extension. As such, the real cost of a .com to the registrars from January 15th 2012 is $8.03.

I have also included links to the 'letters sent to ICANN' which notified them of the respective price changes.

Hopefully someone finds this useful.

.COM ($0.18 ICANN Fee)

Jan 15th 2012 $7.85 Link

Jul 1st 2010 $7.34 Link

Oct 1st 2008 $6.86 Link

Oct 15th 2007 $6.42 Link

1999 $6.00

.NET ($0.75 ICANN Fee)

Jan 15th 2012 $5.11 Link

Jul 1st 2010 Link

Oct 1st 2008 $4.23 Link

Oct 15th 2007 $3.85 Link

1999 $3.50

.BIZ

Feb 1st 2012 $7.85 Link

Apr 1st 2011 $7.30 Link

Jun 1st 2009 $6.85 Link

Oct 19th 2007 $6.42 Link

December 2006 $6.00

.ORG

Jul 1st 2013 $8.25 Link

Apr 1st 2011 $7.21 Link

Nov 9th 2008 $6.75 Link

Oct 18th 2007 $6.15 Link

.INFO

Jul 1st 2011 $7.42 Link

Nov 1st 2008 $6.75 Link

Oct 15th 2007 $6.15 Link