Deletion of Cut-the-Knot

Comment: per the second criterion of ; the listed recognitions are old by now, but 
Stance: keep
Cited policy: Wikipedia:Notability (WP:WEBCRIT||WP:NOTTEMPORARY)

Comment: WP:WEBCRIT states "Keeping in mind that all articles must conform with the policy on verifiability to reliable sources, and that non-independent and self-published sources alone are not sufficient to establish notability; web-specific content '''may''' be notable based on meeting one of the following criteria..." (bold emphasis mine). Still not seeing enough coverage to meet , but withdrawing as this nomination appears unlikely to gain traction
Stance: comment
Cited policy: Wikipedia:Notability (WP:GNG)

Comment: I don't see really see how cut-the-knot fails . The website has won several awards and in my perception well known and well regarded in the community (of math education/didactics) in particular for classic geometry. My personal perception aside you can find it referenced/mentioned in various math textbooks (easily verifiable via google books), that is that is textbooks by distinguished mathematician published with well known educational and/or academic publishers
Stance: keep
Cited policy: Wikipedia:Notability (WP:WEBCRIT)

Comment: meets second criterion in  "The website or content has won a well-known and independent award from either a publication or organization
Stance: keep
Cited policy: Wikipedia:Notability (WP:WEBCRIT)

Comment: I find it incredible that this award winning website's page is being considered for deletion. It clearly satisfies both criteria of . To claim that the website's content, which is ''mathematics'', is not notable is very strange indeed. While taken by itself this would not be a qualifying reason to not delete, this website is used as an external link in dozens of WP articles, so there must be many editors who feel that the website's content is valuable. And, while I sometimes find myself at odds over some quality issues, I think that the site as a whole is an exemplar for mathematical education
Stance: keep
Cited policy: Wikipedia:Notability (WP:WEBCRIT)