Perhaps on his own nowadays, Epstein is trying his best to webmaster over a dozen URLs.
So I sent an email to the webmaster of her site requesting an interview.
(Sometimes "webmistress") The alias or role of the person(s) responsible for the development and maintenance of one or more web servers and/or some or all of the web pages at a website. The term does not imply any particular level of skill or mastery (see "webmonkey").
The webmaster's e-mail address often appears on the home page of the site. Failing that, you could try sending e-mail to postmaster (from which the term is probably derived) or root at that host, possibly after removing an initial "www.".