Websites using some type of Yahoo services
Websites using some form of Captcha technology on them.
nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.
PHP is a widely-used general-purpose scripting language that is especially suited for Web development and can be embedded into HTML.
Yahoo Business Mail offers you a customized business email
The DOCTYPE is a required preamble for HTML5 websites.
The http-equiv attribute provides an HTTP header for the information/value of the content attribute.
The http-equiv attribute can be used to simulate an HTTP response header.
These websites are related to profcom.ru in terms of content, traffic and structure