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I read many articles, blogs and forums about SEO. I read almost everything in Moz. It seams that I know how to do SEO but practically I don't get results. I have a testing page where from time to time I do tests. Today I found in adords that keyword "Happn review" in 2015 of January was searched 1900 times. I wrote this keyword in google and found that all results do not have keyword in their titles. The first result even does not have keyword "review" in text. I wrote a test http://askquestiononline.com/question/happn-review/ . Put keyword in title and in text. I even put it in image name. But my page is only in the 4th page. It is very strange that all my optimisation tests stuck in the page 4 🙂

For about 5-10 years ago many SEOers said that it is in particular important to be in Dmoz. What about nowadays?
Moreover is it still working and accepting new projects. I suggested several of my projects but no news from them

We know that google likes high quality unique images. On the other side google likes fast load times (in particular on mobile). What about showing two different dimensions images on desktop and mobile? Is it good? If yes than any wordpress plugins for that?

My question about Facebook plugin comments and seo. I am interested if these comments are indexable or not.
I know this is not new topic, I found it even in this Q&A. But it was 4 years ago. Maybe something changed in that period?

My FB page has a reach for 3000-5000 views. I promoted several posts and got 40 000-60 000 views per promoted post. An interesting thing that now when I post on my FB page I got 5000-8000 reach without promoting? Have you similar experience?

I have a Q&A project having content of many different topics.
My question: writing several articles on the same topic will up my rank? For example I work on keyword "Rhassoul clay". So if I write 5 topics about rhassoul clay (400 words) will it be a plus for my webpage or not? Or it is better to write one article with 400 x 5 = 2000 words instead of splitting it into 5 articles?