The exact way impressions are counted jamaica phone number library is a bit technical. Ad servers provide a barely visible image (or “pixel”) that can be found on every publisher page. When a page with this pixel image loads, an impression is made.
Impression Fraud
Some data can skew impression counts. First, it’s estimated that about 60% of all web traffic comes from bots. Impression counts don’t differentiate between a human or a bot viewing an ad. Ads may also fail to load, or the wrong ad may load. These types of errors must be accounted for. However, impressions remain a popular way to measure engagement, whether in advertising, social media, or when analyzing web traffic.
If the problem is that you are not getting enough impressions, or worse, not getting any impressions, then other factors come into play.

Below first page bid usually means no impressions. Most likely, your bid for a keyword is too low and as a result it doesn’t appear on the first page of Google.
Google will even give you a warning that your bid is below the first page bid, which is important because most searchers don’t go past the first page.
Another reason could be that people are not typing your keywords.