Is onpage and offpage optimization important recently ( may be in 6 months) ?. Coz one of my webpages is step by step decreased from page 1 to now page 2 SERP position 15 in last 3 months . I am sure it will continue decreasing more.
Google found the content good till 3 months back ( it put the page in page 1 SERP 4 or 5 ). But have for some reason pushing it down. The content is 100% original. There is not any updates to that page. But is that the only reason?
PS: I think you can come page 1 with nice content without any kind of optimization.