Phase 1 findings show the rates of syntax accuracy (Phase 2 looks at both syntax and operability accuracy) of WHOIS contact information over several dimensions, focusing on rates of conformance by contact mode (Email, Telephone or Post) to the requirements of RAAs (2009 RAA or 2013 RAA). Our analysis finds that approximately 99 percent of email addresses, 85 percent of telephone numbers, and 79 percent of postal addresses met all of the baseline syntax requirements of the 2009 RAA, as shown in the table below.
ALL 3 Accurate
All 3 Contacts Accurate
99.2% ± 0.2%
85.8% ± 0.7%
79.1% ± 0.8%
70.3% ± 0.9%
Regarding the individual contact modes, we can make the following general observations:
A two-stage sampling method (initial –> analyzed subsample) was designed to provide a large enough sample to reliably estimate subgroups of interest, such as ICANN region, New gTLD or Prior gTLD, and RAA type. The initial sample contained nearly 100,000 records and the analyzed subsample contained 10,000 records representing all 610 active gTLDs at the time of the report. The results from the subsample testing are used to estimate the results for the entire gTLD population or the particular subgroup of interest. Based on sampling error, there is a 95 percent chance that the true parameter (e.g., the percentage of all administrative telephone numbers with a North American registrant that pass all syntax accuracy tests) is within the 95 percent confidence interval.