Impressions are the most common way for marketers to measure the success of a digital marketing campaign. However, it is important to understand what exactly an impression is and how it is accurately measured. A digital impression is an occurrence generated when an advertisement, digital post, or website page is loaded on a display device and is technically established by an advertisement server providing a barely visible image and/or "pixel" that is found on each publisher page. Each time the page with the pixel image loads, an impression is made.

Accurately measuring impressions is key for any digital marketing campaign. This is because impressions are generally the most important metric used to determine the success of a digital campaign. The number of impressions helps to gauge the marketing objectives including reach, targeting, engagement, and brand recall. Without accurately measuring impressions, understanding the reach and effectiveness of digital campaigns can be difficult.

Due to the digital nature of impressions, they can be difficult to measure as they can be easily manipulated or misreported, leading to inaccuracies. For this reason, it is essential to have a reliable method of counting impressions in order to accurately establish the effectiveness of a campaign. Some strategies could include manually counting impressions, using click-after-view analytics, or partnering with a third-party to accurately count impressions.

In conclusion, impressions are the most commonly used metric for measuring the success of a digital marketing campaign, so it is essential to properly count them in order to acquire accurate measurement results. There are various strategies that should be adopted when counting impressions, such as manually counting impressions, using click-after-view analytics, or partnering with a third-party to make sure that the data is accurately collated. Doing so is an essential step that should never be overlooked as it helps to accurately determine the success of a digital campaign.