The main content’s language does not change and only the page template is translated, such as the navigation elements and the footer. This is often the case on pages with user-generated content, such as a forum.

Your content remains globally fixed in a given language, except for some regional variations. For example, content in French may target users in Belgium, France and Switzerland.

The entire content of the site is translated into several languages. Each page is available in German and French, for example.

Case in point:

I am Apple, I have an international site:

<link rel="canonical" href="https://www.apple.com/fr/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="fr-fr" href="https://www.apple.com/fr/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="de-de" href="https://www.apple.com/de/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="fr-ca" href="https://www.apple.com/xf/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-au" href="https://www.apple.com/au/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="tr-tr" href="https://www.apple.com/tr/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="pl-pl" href="https://www.apple.com/pl/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="ru-ru" href="https://www.apple.com/ru/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-gb" href="https://www.apple.com/uk/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="it-it" href="https://www.apple.com/it/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="ja-jp" href="https://www.apple.com/jp/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-ca" href="https://www.apple.com/ca/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="es-es" href="https://www.apple.com/es/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="sv-se" href="https://www.apple.com/se/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-ae" href="https://www.apple.com/ae/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-us" href="https://www.apple.com/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="fr-ch" href="https://www.apple.com/ch-fr/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="zh-hans-cn" href="https://www.apple.com/cn/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="fi-fi" href="https://www.apple.com/fi/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-ie" href="https://www.apple.com/ie/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="da-dk" href="https://www.apple.com/dk/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-my" href="https://www.apple.com/my/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="ko-kr" href="https://www.apple.com/kr/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="zh-hant-tw" href="https://www.apple.com/tw/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="de-at" href="https://www.apple.com/at/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-th" href="https://www.apple.com/th-en/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="es-mx" href="https://www.apple.com/mx/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="hu-hu" href="https://www.apple.com/hu/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-nz" href="https://www.apple.com/nz/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="pt-br" href="https://www.apple.com/br/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="nl-be" href="https://www.apple.com/be-nl/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="no-no" href="https://www.apple.com/no/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-ph" href="https://www.apple.com/ph/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="th-th" href="https://www.apple.com/th/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="cs-cz" href="https://www.apple.com/cz/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="fr-be" href="https://www.apple.com/be-fr/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="fr-lu" href="https://www.apple.com/lu/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="pt-pt" href="https://www.apple.com/pt/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="nl-nl" href="https://www.apple.com/nl/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="zh-hant-hk" href="https://www.apple.com/hk-zh/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-sg" href="https://www.apple.com/sg/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="de-ch" href="https://www.apple.com/ch-de/shop/buy-iphone/iphone-11" />

<link rel="alternate" hreflang="en-hk" href="https://www.apple.com/hk/shop/buy-iphone/iphone-11" />