It's amazing how poor on-site search has gotten, while at the same time the capability to have better results and more relevancy has gone way up.

I normally use Google and/or DuckDuckGo to search YouTube and Amazon, because if I'm looking for a specific video/product, that one will be 3-4 pages in (maybe not even shown).

Brand name products are buried 3+ pages deep on Amazon, while the first 2-3 pages are always drop-shipped Chinese knockoffs now. The onsite search is almost entirely useless.