You tried going to https://www.clarityzonemagazine.com/2013/04/21/sonnet-18-shall-i-compare-thee-to-a-summers-day/, and it doesn't exist. All is not lost! You can search for what you're looking for.
https://www.clarityzonemagazine.com/2013/04/21/sonnet-18-shall-i-compare-thee-to-a-summers-day/