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@blaine @julian @nightpool

So, for finding the AP equivalent of an URL that I think is a Web page, I'd take these steps:

- Link header: HEAD and look for the Link: header (easy, fast)
- Webfinger: Webfinger the URL (a little more complicated)
- Content negotiation: GET with Accept header set to AS2 type
- Parsing: GET and look for Link: header or <link> element

For finding the HTML page for an AP object:

- Link header: HEAD and look for Link:
- AS2: GET and look for `url` at top level