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To address some of the comments below, the slowness I'm talking about is probably P80-ish. Most queries run fine, but I was noticing throughout the day that some queries would randomly take multiple seconds to resolve. I never timed them, because just re-running the queries would work around the issue, so I suspect it's some backend thing on DDG's side. Google does have similar issues for me, but it feels more like P99-level.