Looking for a Tool to Search for Comments

Question

A couple of weeks ago, I can across a website that searched sites like Hacker News and Lobste.rs for comments on an article. I thought I bookmarked it, but I can't find it. Does anyone know what I'm talking about?

johnblood · Accepted Answer

I just found it: https://discu.eu/

mtmail · Answer

https://syften.com/ searches for comments, but you have to supply a search term (not URL).