One of Google Search’s oldest and best-known features, cache links, are being retired. Best known by the “Cached” button, those are a snapshot of a web page the last time Google indexed it. However, according to Google, they’re no longer required.
“It was meant for helping people access pages when way back, you often couldn’t depend on a page loading,” Google’s Danny Sullivan wrote. “These days, things have greatly improved. So, it was decided to retire it.”
I dunno, but I suspect that they aren’t using Google’s cache if that’s the case.
My guess is that the site uses its own scrapper that acts like a search engine and because websites want to be seen to search engines they allow them to see everything. This is just my guess, so it might very well be completely wrong.