What to do if the site dropped out of the search?

Question

Search Engine Optimization

There is a site reviewer of products from affiliate programs. Until yesterday, everything was fine, even the day before the traffic increased noticeably.
But yesterday, around 10 pm, I go on requests and the site disappeared, before that it took 1-5 places. Today there is no traffic at all.
I did not buy any links to the site, there were no markups either.
I looked at the Yandex output via host: and it displays all the pages, but for the target queries the site is not even on page 5.
Technically, nothing has changed, the webmaster also does not swear, what could happen and what to do about it?

Answer 1

Good afternoon.
The first question - was there useful content? Judging by the description "reviewer of products from affiliate programs", the site falls just under the definition of "poor quality" - see here . Particular attention to points:
The last point suits you very well.
Solution - write and develop your original content or services!

Answer 2

Because you take other people's text works and expose them as your own, dreaming that you can earn money on this, thereby bringing nothing of your own to the Internet. For non-your information on the site, you must use the cite and blockquote tags - so that search engines do not ban the project for plagiarism.
Of course, don't forget to use the cite="" attribute of the same name inside the blockquote tag
. For example:

<blockquote cite="http://www.cellphones.ru">
  <p>Эта информация взята с сайта www.cellphones.ru</p>
</blockquote>

And in the paragraph, it is also desirable to indicate the source. You should try to indicate the source wherever possible, and the more, the better. In order not to force the search engine to think again and look for matches.
Make the work of the search engine easier, on the contrary, so that it does not spend kW / h on identifying the rightful owner.
The Internet came to us from the West, and there the topic of copyright (s) is given not oh what importance, but what importance, and not just in words, as you are used to, but immediately in deeds, so try to behave appropriately to the ethics of the Internet. Otherwise, anyway, the machine will determine that you are trying to cheat, and they really do not like deception. Ignorance does not protect from responsibility. Basically, you were cheating.
PS All the same, after all, they will expose, in any case they will punish. If you think that you need to have a great mind to make a spider, then you are mistaken. Before you, there were whole packs of such clever people back in the 90s.

Answer 3

It's amazing how you made it to the top. Search engines have long put all affiliate programs after the 500th position.