International pages - SEO - which metatags to use?

[MikeSEOTruven]

I'm trying to get my International pages set up correctly for SEO
Can you tell me which of the following meta-tags are the ones to use on the pages?
I've heard that some might be obsolete, so will it hurt if I throw on all 3 or just choose 1?

Example: Italian language page

[Mark_Ginsberg]

Hi,

From an SEO standpoint, ideally you should be implementing the hreflang tag - it indicates to the search engines not just the language of the page, but the relationship between the pages on the site in the different languages. It tells the search engines these pages are alternate translations of one another, and you should show the right page for the person in their correct language.

You can learn more about the hreflang tag from Google directly:

https://support.google.com/webmasters/answer/182192

https://support.google.com/webmasters/answer/189077?hl=en

I would ook to implement this first.

Good luck,

Mark