Adicionar canonical

[klzns]

All pages should specify a valid canonical URL to get more control over how duplicate URLs are treated by search engines. When a set of URLs on your site return duplicate or near duplicate content, search engines will select a single definitive URL for that content called the canonical URL. This URL will be crawled more often, will take priority in search results over URLs with duplicate content and search rank boosting backlinks to the URLs with duplicate content will be viewed as linking to the canonical URL. Note that "self-canonicalizing" a page by setting its canonical URL to itself is both valid and useful as it can help eliminate potential duplicates such as when pages may be linked to with tracking URL parameters. To suggest the canonical URL for a page you can 1) add a tag inside the page's tag (most common) or 2) add a Link: <...>; rel="canonical" header to the page's response headers. Google suggest giving absolute canonical URLs over relative ones. Search engines are likely to ignore your canonical URL suggestion if you 1) include multiple canonical URL suggestions per page or 2) suggest a URL that is broken, redirects, isn't indexable or isn't itself canonical. Keep in mind that for exact duplicates you should consider if it is more appropriate to use 301 redirects over canonical URLs to consolidate duplicates instead.