I'm ranking a website similar to driving theory practice tests. Now I'm currently ranking #5 and the websites outranking me are 1) The official Driving Test website 2) The official Driving Booking Test website. 3) The website similar to mine 4) The website similar to mine My website has better PA/DA than the website #4 but is not outranking it. Should I consider linking to the first 2 websites to increase my SERP rankings? The website #4 does link to one of the official websites. I also link to the official website I but I have my link on the About us page, not my homepage. I also have less backlinks showing in MOZ than my competitors, and they are not using wordpress like me. Any advice?