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A webmaster is a person responsible for maintaining one or more websites. The title may refer to web architects, web developers, site authors, website administrators, website owners, 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.
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.
Core responsibilities of the webmaster may include managing a website's appearance, user access rights, and navigation. Content placement can also be part of a webmaster's numerous duties, though content creation may not be.