I have a 5-year old site that has done well over the years and then started tank about a year ago. I made some pretty big changes to the entire site.
1) Site is now completely responsive (all devices) design. Was previous just for desktop.
2) Made sure every page (that I want to rank for) had at least 700 words of solid content. Previously most pages had less than 400 words.
3) Non-indexed all fluff or anything that wasn't worthy.
4) Speed up server to the max.
I made all of these changes to a site that previously had 7,000 indexed pages. Now I have 1,200 indexed pages (the ones I want users to find).
Question: How long should I wait until I re-evaluate how the site is doing from an SEO perspective?
Within a month I started to see a 30% jump in traffic and it is still growing. Any input is appreciated.