Checking Title and Description services?

Question

Search Engine Optimization

Please tell me, besides the number of characters in the title and description, are there any other important factors? It is necessary to write a title and description for about 100 sections, I will write in such a way that the title and description correspond to the topic of the section and be 70/80 and 170/190 characters. What else needs to be considered? The presence of keys with high frequency, and yet?
I apologize if similar questions have already been asked.

Answer 1

No need to make a title of 70/80 characters, this is insanity and delusion. Take as a basis - 12 words (this is the display limit for Google).
This is the right decision.
First of all, you need to understand that in addition to the inclusion of keys in the title, you need to make it attractive. The more attractive it is, the higher its ctr. A large number of clicks will improve the PF. (BEST PF - a single click on a snippet within 1 user's search session).
Well, the most basic things that you could find on the Internet:

1. The tag must be one per page.
   
2. Inside the Title there should not be extra characters, for example, multiple spaces or line breaks.
   
3. I do not recommend using more than 3 keys.
   
4. The title must be unique both on the site and on the Internet.
   
5. Mandatory entry of the names of the region (if the promotion is not in Russia)