What is a canonical brand?

Canonical brand is a small piece of code built into a website that can help search machines to deal with multiple versions of the same page. It is supported by three of the most popular search engines and allows webmaster to determine the preferred content for content that could be duplicated. Search engines usually honor this request and use the preferred address when indexing pages, but can ignore it under certain circumstances. Canonical brands, which are actually an element of the brand , can be used with relative and absolute paths, but in general they cannot go through the domains.

In early 2009, the three main search engines agreed to use a canonical brand to help deal with duplicate content on the web. Similar or identical websites can often be accessed from multiple websites or uniform resource locators (URL) such as http://example.com, http://www.example.com and http://www.example.com/index.php. Content management systems, electronic store platformsWikiay also generates and generates pages dynamically, with slightly different URL addresses to change the order of category sorting, AFFILIATE links or access to previous versions of the article or page.

Duplicate pages with slightly different addresses can work against search engine algorithms that use the popularity of the link to determine where the page is ranked in search results. Web page with 300 links pointing to two different URL addresses could appear to the search engine indexing software as one page with only 150 links. Historically, search engines have dealt with the problem by offering preferred URL settings in their webmaster instruments, developing their own internal algorithms to guide the most suitable address and maintain 301, a status code generated by a server that transmits the new URL requirements.

Canonical brand is for web developersSite a way to mark a specific URL as a preferred version page. It is a small code of code that must be inserted on all websites with similar or duplicate content, but does not require any changes in the web server settings. Most search engines are treated as a "strong hint" rather than a command, which means that a canonical brand can be ignored that has been implemented poorly or points to a completely different page. The code is meaningful only for search engines; Web browsers ignore canonical brands.

Despite its name, the canonical brand is not a real "brand", but an element that can be used on the widely used brand. The page marked with the code would tell the search engine that the preferred or canonical url for content is http://www.example.com/about.html. Part of the "rel = canonical" code tells the search engine that the URL in "Href =" is a canonical link. Unlike redirecting 301, kaNonic branded -use with absolute and relative ways, although some search engines recommend using absolute ways. However, the redirection may point to another domain, while most search engines support only canonical links in the same domain.