Matt reports that WordPress.com is 22nd on Quantcast’s ranking of sites by US monthly uniques. Congratulations to Automattic on the ranking, and on the score that achieved it: 21 million.
Quantcast’s page about WordPress.com provides further data:
- 75 million global monthly uniques.
- In terms of ethnicity of US visitors, Asian is first, with Hispanic and Other tied for second, ahead of Caucasian and of African-American.
- It’s a “no advertising” site. I think that’s inaccurate, given that: You may see some advertising on the domain.
These are the stats that include parked domains, such as your own:
http://www.quantcast.com/p-18-mFEk4J448M