When GPT cites a source, how can I tell whether it supports the claim?

Sometimes GPT gives a confident answer with a link or a named report, but the cited page only discusses the general topic—it doesn’t seem to back the specific sentence. That makes it hard to know whether I’m looking at a weak source, a bad summary or a citation that was never checked closely.

What’s a sensible way to verify this without spending longer checking every answer than it would take to research the question myself? I’m interested in approaches for checking AI citations against source text, especially when a response includes several claims and links.