Welcome to the Q&A Forum

If it is like that, google will catch them and drop them far away from the ranking.

I recommend you to do this:

Google your most important keywords.
Grab all the top 10 pages in the ranking.
Check the balance of the traffic using semrush.com, if you can see any big drop from traffic could be they have been penalised. In this case avoid them. If they have normal balance, go to https://moz.com/researchtools/ose/ and check their backlinks.
Download your csv report.
Now choose the most important ones (with DA &PA) and try to replicate them.
Remind has to look natural, so you must go slowly.

This way you dont have to wait the results of the first site.

Good luck.

I understand but we are not talking about black hat seo, just to crawl a site that hasn´t be crawled since october. And we all already know that sometimes Google says half-truths. I was suggesting to do something knew to get different results that he already had. Anyway i appreciate your point of view.

Why not Martijn? That tool has helped me several times not in the same case but for backlinks.

Hy ByskEd!

Here http://sixrevisions.com/content-strategy/5-common-seo-mistakes-with-web-page-titles/ they say not to use them in all pages to make branding. But myself i´m using it because i have seen big brands ranking very well the brand name using these type of techniques.

Hey ya! You can find a great disccusion right here www.searchenginejournal.com/w3c-validation-for-seo-myth-and-reality/18566/

They have grown a lot since October. Can be seen from the growth curve. It seems that some tactics are wearing, if they have cheated we will see in a few months. Otherwise you could use opensiteexplorer.org to copy their strategy and replicate their backlinks.