What is search impression share?

The % of impressions you received out of the impressions you were eligible for. Split into lost to budget and lost to rank, so you know whether to raise budget or improve Ad Rank.

Go deeper

Want the full playbook? Read Beginner’s Guide to Google Ads Numbers That Matter in 2026 — Learn the Google Ads metrics and KPIs that actually guide better decisions, from impressions and CTR to CPA, ROAS, Quality Score, and impression share.