Does translated content cause a duplicate content issue?
Why Stack Overflow recommends it
Stack Overflow users link it as an official Google source when answering whether translated or multilingual pages count as duplicate content for SEO.
Recommended by 0 people across 0 different months, 2013 to 2018.
What it is
A short Google Webmaster Help video in which a Google Search team member answers a viewer question about whether translating the same content into other languages across different sites triggers a duplicate content penalty. It is a brief Q&A explainer from the Google Search Central channel (then Google Webmasters), published in 2011.
What people said
Cites AbsoluteƵERØ · 2013-05 · Stack Overflow · on “Writing a mutiple language website: the webdesigner's (best) options”
You can tell Google what the parameters in the URL mean through Google's Webmaster Tools [LINK] . So if you use a standard convention like index.php for the main page and a parameter like ?lang=fr for let's say French content in regard to SEO as long as it's a real translation [this video] . Likewise when Google.fr crawls the site you would present their users with the French version of the page based on their default setting in their browser. This will increase stickiness on the site and then increase the rank for the selected search terms in French. You can check their default language with this in PHP to make it less heavy on the user's end: <?php $lang = substr($_SERVER['HTTP_ACCEPT_LANGUAGE'
Cites user29671 · 2015-07 · Stack Overflow · on “Use rel="canonical" on structurally same pages?”
Content in different languages is not considered duplicate. See here Does translated content cause a duplicate content issue? [this video] and this link should be helpful too : [LINK]
Cites A. Parker · 2018-09 · Stack Overflow · on “Does Google engine penalize pages containing (machine or human) translated content?”
From this video with a Google employee [this video] , auto-generated / machine translated versions of webpages can count against your site as duplicate content. If you append the machine translated version with some text of your own you might be able to get around this 'Yes, it's duplicated content' flag, but we can't know how much original text needs to be added to a translation in order for the Google robots to flag the page as original content instead of duplicated content. Your best bet would be to have an actual human translate the whole web page or you could have a human translator augment or modify a machine-translated version of your webpage so that human-edited translation of your websit