Hacker News Reader

January 2014

(Found by plugging "hn.algolia.com" into hn.algolia.com and bisecting by date).

HN also have domain search built-in, sorted by date. Here is the first submissions about hn.algolia.com https://news.ycombinator.com/from?site=hn.algolia.com&next=7... (click the domain name next to the submission title)

I don't know exactly, but it's been a pretty long time. Probably at least 10 years?