ogexpiresin
ogexpiresin is a non-standard Open Graph meta tag that signals how long a page’s Open Graph preview should be considered valid. It is not defined in the official Open Graph Core Specification and is not widely adopted, but some platforms and content delivery networks have experimented with it to improve cache freshness of shared previews.
The tag is expressed as a meta element, for example: <meta property="ogexpiresin" content="3600" />, with the content
Compatibility and status: Because it is non-standard, support is inconsistent. There is no official documentation from
Practical use and alternatives: If you choose to experiment with ogexpiresin, validate behavior across target platforms
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