Social network Reddit recently began blocking mobile visitors to its website while pushing them to download the official Reddit app, and it's fair to say that the move is not going down well with users. If you visit reddit.com on your iPhone today, you may see a new popup that can't be dismissed, asking you to "get the app to keep using Reddit".
Better use the actual
-site:domainfunction to filter out by domain directly. You can in example search everything about Reddit, without results from Reddit itself: