As someone who appends "Reddit" to his Google queries - SEO spammers have already caught up on this trend. I've seen it on several occasions that some blog site will have the word "Reddit" in the title.
Search engine: Reddit through Google
Keyword: r
URL with %s in place of query: {google:baseURL}search?q=site%3Areddit.com+%s
After that you just type "r best electric bicycle" in the top bar and it'll turn that into "site:reddit.com best electric bicycle".
I also have
n {google:baseURL}search?q=site%3Anews.ycombinator.com+%s
w https://en.wikipedia.org/wiki/Special:Search?search=%s
wk https://en.wiktionary.org/wiki/%s
u https://www.urbandictionary.com/define.php?term=%s
l https://libgen.is/search.php?req=%s
a {google:baseURL}search?q=site%3Aarxiv.org+%s
t https://thepiratebay.org/search/%s/0/99/0
and a bunch more I never use. The LibGen one isn't great because it sometimes breaks if they get kicked off their TLD. I worry that someone could snag the domain after they get kicked off and I wouldn't notice, but that's a bit too paranoid.Then I also have
p {google:baseURL}search?q=site:docs.python.org%2F3%2F+%s&btnI=I%27m+Feeling+Lucky
which goes straight to the first search result using Google's "I'm Feeling Lucky" feature (turns out that's what that button was for), but in order to avoid having to click through a redirect notice, you need to install (at your own risk) the "Redirect Google Redirects" extension: https://chrome.google.com/webstore/detail/redirect-google-re...