LiveInternet - крупный сервис дневников и сообществ, авторитетный сервис статистики для сайтов.
Free service that generates a social sharing buttons script. You choose the desired buttons by your own.
A WordPress performance framework. Improve site performance via caching.
A pingback is one of four types of linkback methods for Web authors to request notification when somebody links to one of their documents. This enables authors to keep track of who is linking to, or referring to their articles.
This site uses the viewport meta tag which means the content may be optimized for mobile content.
Sites who has this tag are verfied by google to use WebMaster tools
A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical", or "preferred".