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Due to the RFC 822 requirement for establishing a "postmaster" email address for the single point of contact for the email administrator of a domain, the "webmaster" address and title were unofficially adopted by analogy for the website administrator. RFC 2142 turned this common practice into a standard.
The title may refer to web architects, web developers, site authors, website administrators, website coordinators, or website publishers. The duties of a webmaster may include: ensuring that the web servers, hardware and software are operating correctly, designing the website, generating and revising web pages, A/B testing, replying to user comments, and examining traffic through the site. Webmasters of commercial websites may also need to be familiar with e-commerce software.
Core responsibilities of the webmaster may include the regulation and management of access rights of different users of a website or content management system, the appearance and setting up website navigation. Content placement can be part of a webmaster's numerous duties, though content creation may not be.