> Applebot is used for generating attachment previews in iMessage (eg. Send someone a URL — the preview is from Applebot crawling it)
Is this true? I would have assumed that would be done locally on device. The preview image, for example, is what's designated by the Open Graph[0] og:image tag.
Crawling and caching is pretty common for any service that offers unfurled previews to avoid sending extra traffic to sites that may not be able to handle it, and in many cases I'd imagine retrieving the pre-extracted cached version to be faster.
Is this true? I would have assumed that would be done locally on device. The preview image, for example, is what's designated by the Open Graph[0] og:image tag.
[0]: https://ogp.me