This webpage has alternate versions available in Indonesian via the use of the hreflang tag.
https://support.google.com/webmasters/answer/189077?hl=en
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Get access to data on 299,362 websites Indonesian HREF LANG Customers. We know of 145,323 live websites using Indonesian HREF LANG and an additional 154,039 sites that used Indonesian HREF LANG historically and 65,326 websites in the United States.
Get a list of 299,362 websites using Indonesian HREF LANG which includes location information, hosting data, contact details, 145,323 currently live websites and an additional 347,406 domains that redirect to sites in this list. 154,039 sites that used this technology previouslyand 65,326 websites in the United States currently using Indonesian HREF LANG.
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