ietf-mxcomp
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Re: by the numbers

2004-09-14 11:36:57

On Sep 14, 2004, at 1:54 PM, wayne wrote:
* can you tell me when this survey was conducted?

com/net was done July 5. I believe de was done August 18. I do have com/net numbers around mid-august, by the were not much different. I just don't have them handy at the moment.

* for those looking closely at the numbers, it appears that
the last digit of the numbers for the de TLD were sometimes droppped.

I'll attach a CSV (the other CSV) format.

* it appears that you survedy about 25% of com/net and 12.5% of de.

I believe both are well above the number needed for statistical significance.

I'll reserve my conclusions for now, save the fact that your numbers
depend on where you look.

I'm sure this is very true.

I was merely pointing out the differences between com/net and de.

-andy

,com/net,de MX Reocrds,"7,617,555","1,164,178" MX Records With Address In Target,"63,797",521 MX Records With Unresolvable Targets,"358,369","13,324" MX Records Pointing To Loopback Address,"125,956",949 MX Records At Zone Apex,"6,949,466","1,119,317" Wildcard MX Record,"668,089","44,861" Unique MX Record by IP Address,"2,264,858","196,545" TXT Records,"407,961","17,850" Wildcard TXT Record,"25,669",187 TXT Records at Zone Apex,"356,537","17,474" CNAME'd TXT Records at Zone Apex,248,4 TXT with SPF Content,"185,607","2,304" TXT with Caller-ID Content,137,2 TXT with _ep Prefix,"25,755",189 TXT with _ep Prefix and No Caller-ID Content,"25,624",187 TXT with _ep Prefix and Caller-ID Content,131,2 TXT with _ep Prefix and SPF Content,"24,368",156 Wildcard TXT with SPF Content,"24,378",156 Wildcard TXT with Caller-ID Content,0,0 TXT at Zone Apex with SPF Content,"136,861","1,992" TXT at Zone Apex with Caller-ID Content,6,0 Average Size of All TXT Records,39,21 Avearge Size of All Wildcard TXT Records,12,27 Average Size of All Apex TXT Recrods,43,21 Average Size of All SPF Records,56,27 Average Size of All Caller-ID Records,82,76 Largest TXT Record,423,232 Largest SPF Record,386,232 Largest Caller-ID Record,249,96 Total Number of Domains Scanned,"8,477,489","736,725" Domains with A Record at Zone Apex,"5,574,982","503,652" Domains with A Record at Apex Pointing to Loopback Addr,867,269 Domains with AAAA Record at Zone Apex,"2,284",58 Domains with Address in MX Record,"62,513",499 Domains with Unresolvable MX Target,"226,673","12,497" Domains with MX Pointing to Loopback Address,"86,344",915 Domains with MX Record at Zone Apex,"4,697,344","676,517" Domains with TXT Record at Zone Apex,"329,707","15,071" Domains with Wildcard MX Record,"437,982","26,616" Domains with Wildcard TXT Record,"25,619",186 Domains with Apex MX and Wildcard MX,"418,547","26,443" Domains with Apex TXT and Wildcard TXT,"24,531",181 Domains with SPF,"138,603","1,993" Domains with Caller-ID,136,2 Domains with both SPF and Caller-ID,107,1 Domains with SPF and Wildcard TXT,"24,378",156 Domains with SPF in Wildcard TXT,"24,378",156 Domains with SPF and Wildcard TXT but not Both,0,0 Domains with SPF and Other Content in Wildcard TXT,4,0 Domains with SPF at Zone Apex,"136,853","1,991" Domains with SPF '+all',7,0 Domains with SPF '-all',"76,386",571 Domains with SPF '?all',"51,005",105 Domains with SPF '~all',"10,351",96 Domains with Caller-ID and Wildcard TXT,26,0 Domains with Caller-ID in Wildcard TXT,0,0 Domains with Caller-ID and Wildcard TXT but not Both,26,0 Domains with Caller-ID and Other Content in Wildcard TXT,0,0 Domains with a valid A or MX at the Apex,"6,104,870","693,109" Domains with a valid A or MX at the Apex and SPF,"130,464","1,926" Domains with a valid A or MX at the Apex and Caller-ID,121,2 Average Size of Wildcard TXT for Domains with Wildcard TXT,12,27 Average Size of Apex TXT for Domains with Apex TXT,43,20 Total Number of Domains In Zone(s),"33,887,010","5,896,720" Total Number of Domains Processed,"8,477,489","736,725"

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