Tell us about advertising metrics: impressions, clicks, what metrics are there in general?

Advertising metrics are indicators that help evaluate the effectiveness of advertising campaigns. The main ones include:

• Impressions — the number of times the ad was shown to a user.
• Clicks — the number of clicks on the ad banner or link.
• CTR (Click-Through Rate) — the ratio of clicks to impressions, expressed as a percentage, showing how much the ad interested the audience.
• CPC (Cost Per Click) — the cost of one click, important for assessing expenses.
• CPM (Cost Per Mille) — the cost per thousand impressions.
• Conversions — the number of targeted actions (purchase, registration, etc.) after clicking.
• Conversion Rate — the ratio of conversions to clicks.
• ROI (Return on Investment) — return on investment, showing the profitability of the campaign.

These metrics help understand how effective the advertising is, where the bottlenecks are, and how to optimize the budget.