Website petrvydra.cz

Google Analytics Dynamic Display Advertising Retargeting Pixel.

Google Analytics Display Advertising Retargeting Pixel.

DoubleClick Advertisers.

Google Adwords Advertisers.

DoubleClick is a provider of digital marketing technology and services. Companies come to DoubleClick for expertise in ad serving, media, video, search and affiliate marketing to help them make the most of the digital medium.

Websites embedding Google maps.

Websites using some form of Captcha technology on them.

PayPal is a American international e-commerce service that enables companies and individuals to send money and to accept payments without revealing any financial details.

A family of standard web feed formats used to publish frequently updated information like blog entries, news headlines, audio and video.

nginx [engine x] is a HTTP server and mail proxy server written by Igor Sysoev.

The Apache HTTP Server is an open-source HTTP server for modern operating systems including UNIX, Microsoft Windows, Mac OS/X and Netware. The goal of this project is to provide a secure, efficient and extensible server that provides HTTP services observing the current HTTP standards. Apache has been the most popular web server ...

Open graph locale entity tag

Open graph type entity tag

Open graph url entity tag

Open graph description entity tag

The Open Graph protocol enables any web page to become a rich object in a social graph, a open protocol supported by Facebook

Open graph site name entity tag

Open graph image entity tag

A web page. Every web page is implicitly assumed to be declared to be of type WebPage, so the various properties about that webpage, such as breadcrumb may be used. We recommend explicit declaration if these properties are specified, but if they are found outside of an itemscope, they will be assumed to be about the page

A scheme.org entity that represents an organization such as a school, NGO, corporation, club, etc.

A scheme.org entity that represents an article, such as a news article or piece of investigative report. Newspapers and magazines have articles of many different types and this is intended to cover them all.

Meta descriptions are HTML attributes that provide concise explanations of the contents of web pages. Meta descriptions are commonly used on search engine result pages (SERPs) to display preview snippets for a given page.

A canonical link element is an HTML element that helps webmasters prevent duplicate content issues by specifying the "canonical", or "preferred".

Wesites using favicon rel tag

This page contains a meta robots tag which tells search engines and robots to index or not index the page.

UTF-8 (8-bit UCS/Unicode Transformation Format) is a variable-length character encoding for Unicode. It is the preferred encoding for web pages.