I played with the search engine some, and I'm surprised how behind their crawl is for my blog and some blogs I follow. For example, it looks like it last indexed www.jefftk.com in August 2017, compared to Bing and Google which crawled it this month. www.benkuhn.net looks like Summer 2017. pedestrianobservations.com looks like April 2019. apenwarr.ca looks like January 2019. No preview for danluu.com or sideways-view.com.

(Disclosure: I work for Google, not on search)