People's interests vary, so search results are unique to each person. This applies to both advertising and SEO. Yandex adjusts the results to take into account each "customer profile":
Behavior
The system takes into account where a person reacts to advertising. For example, a person does not click on the first lines of advertising or does not trust advertising in general and clicks on ads only in the SEO block. For such a user, the predicted conversion decreases, the system may not show him advertising.
Which sites do people click on ads on?
What other ads are there on sites where people click on ads
What are the page titles of the sites that view and click on the ads?
Keywords and queries that the user entered previously
Socio-demographic factors
Search queries
What do they buy?
What they say (wiretapping of Yandex Station Alice)
What are your interests?
This is far from a complete list of factors that the rcs phone number data algorithm takes into account when displaying ads. It is known that the total list of factors is more than 80, but not all of them are known to us.
Important:
In Incognito mode, a person's online behavior history is not taken into account, so there is a chance to find your ad.
The user has a "bad history"
In the advertising auction, the system takes into account the history of personal search. There are cases when the client constantly "breaks through" the advertising results, but does not click on the ad. The system will consider the user non-converting and hide the ads from him.
10 specific cases in which a businessman does not see his advertising
The search phrase now has a status of low impressions
Low-frequency phrases can get the status of "few impressions", and ads will stop running. If we see such a status in the advertising account, we combine low-frequency phrases into new groups with higher-frequency keys.
Advertising stopped due to errors on the site
When setting up advertising, we usually set the option to disable impressions when the site is not working.