: Is there a Microdata version of JSON-LD’s "@id"? I'm trying to generate Microdata markup (making use of Schema.org). I know that JSON-LD has a "@id" which helps reference that whatever data

@Ann8826881

Yes, the itemid attribute (W3C, WHATWG).

Example:

<div itemscope itemtype="http://schema.org/Person" itemid="/team/alice#i">
<!-- this person (not the page about this person) has the URI "/team/alice#i" -->
</div>

<div itemscope itemtype="http://schema.org/Book">
<link itemprop="author" href="/team/alice#i" />
</div>

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