This webpage has alternate versions available in Hong Kong Chinese 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 47,008 websites Hong Kong Chinese HREF LANG Customers. We know of 24,690 live websites using Hong Kong Chinese HREF LANG and an additional 22,318 sites that used Hong Kong Chinese HREF LANG historically and 7,739 websites in the United States.
Get a list of 47,008 websites using Hong Kong Chinese HREF LANG which includes location information, hosting data, contact details, 24,690 currently live websites and an additional 140,079 domains that redirect to sites in this list. 22,318 sites that used this technology previouslyand 7,739 websites in the United States currently using Hong Kong Chinese HREF LANG.
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