I didn’t know about analytics.twitter.com. It cannot be archived in the WayBack machine or Archive Today (because of http 307 redirects without a logged on Twitter account), but it gives analytics of your past twitter behaviour.
The about link does archive though: [Wayback/Archive] Twitter Analytics: about.
Via [Archive] An on Twitter: “@Walrathis al even gekeken op analytics.twitter.com
?” / Twitter
–jeroen