Website vs. web page. A website (usually one word, though a few publishers use Web site or web site) is a collection of linked documents and content associated with a single organization, person, group, or topic and usually sharing a server and a domain name. A web page (usually two words) is a single page of content on a website.
The Marvel Netflix shows seem to take place around the same time as they were filmed. Iron Fist filming happened April-October 2016. Clues in the show point to the season happening over the course of a month, maybe a month and a half, so I'd say it takes place right before Civil War.
Netflix's Marvel series began in 2015 with Marvel's Daredevil and Marvel's Jessica Jones, followed by Marvel's Luke Cage in 2016. Marvel's Iron Fist released in 2017, with the crossover miniseries Marvel's The Defenders, and Marvel's The Punisher also scheduled to be released in 2017. Additionally, the MCU will expand to Freeform with Marvel's Cloak & Dagger in 2018.