Which metrics are most helpful to monitor for a successful search campaign after launch?

• A. Impressions, Clicks, CTR, Conversions, Conversion Rate, Cost per Conversion, ROAS, Quality Score, Impression Share, Average CPC.
• B. Pageviews, Time on Site, Bounce Rate
• C. Revenue per user, churn rate
• D. Impressions only

Answer: (A)

When evaluating a search campaign after launch, you need a mix of visibility, engagement, and business-result metrics to guide optimization. Impressions show how often your ads could appear and help gauge reach. Clicks indicate the traffic volume you’re driving. CTR reveals how compelling your ad is relative to how often it’s shown. Conversions measure how many of those clicks lead to the desired action, which is the real measure of success. Conversion rate connects clicks to conversions, showing how efficiently your traffic translates into outcomes. Cost per conversion tells you how much you’re spending to achieve each goal action, which is key for ROI. ROAS (return on ad spend) assesses profitability by comparing revenue against ad spend. Quality Score matters because higher relevance and landing-page experience can improve ad rank and often reduce CPC. Impression share indicates how much of the eligible impressions you’re capturing, highlighting opportunities to bid higher or improve quality to win more real estate. Average CPC tracks the typical amount you pay per click, helping you adjust bids and budgets.

Other options either focus only on on-site metrics (like pageviews, time on site, and bounce rate), which reflect post-click behavior rather than campaign performance; or they bring in CRM or retention metrics (revenue per user, churn) that aren’t actionable for optimizing a search campaign. Impressions alone don’t reveal how effectively traffic converts.