How to monitor and optimize Google Ads

Use the Google Ads Monitoring Checklist Template with this article.

Section 1: Why Monitoring Matters

  • Ensure ad spend is efficient
  • Maintain strong performance for KPIs (CTR, CPC, Conversions)
  • Identify early issues before they become costly

Section 2: When to Monitor

  • Weekly: Main monitoring session
  • Mid-week glance (optional): Check pacing & major issues
  • End of month: Review performance vs. goals

Section 3: What to Monitor

Campaign Level

  • Budget pacing vs. month target
  • Status (active, limited by budget, policy issues)
  • Impressions & Clicks trend

Ad Group Level

  • CTR (Click-Through Rate) – Indicates ad relevance
  • Avg. CPC (Cost-Per-Click) – Compare to historical data
  • Conversions & Conversion Rate
  • Quality Score (check Google’s suggestions for ad strength)

Keyword Level

  • Search terms report → Look for irrelevant terms → Add negative keywords
  • CPC vs. conversions
  • Low Quality Score keywords

Ad Level

  • Ad strength & headlines performance
  • CTR by ad variation
  • Check if any ads are disapproved

Section 4: Interpreting Good vs. Bad

(We’ll avoid strict benchmarks, instead use relative comparisons)

  • CTR dropping vs. last week → ad fatigue or irrelevant targeting
  • CPC increasing without conversion lift → tighten keywords, add negatives
  • Conversions down → check landing page or ad copy alignment
  • Quality Score low → rewrite ads, use responsive ads with relevant headlines

Section 5: Optimization Actions

Common Issues → Action Steps

  • CTR low → Test new headlines/descriptions, add sitelinks
  • High CPC → Add negatives, adjust bids on underperforming keywords
  • No conversions → Pause low-performing keywords/ad groups, improve landing page alignment
  • Limited by budget → Reallocate from low-performing campaigns OR reduce bids strategically
  • Search terms irrelevant → Negative keyword list update weekly

Section 6: Google’s Recommendations

  • ✅ Use for ad strength, keyword suggestions, Quality Score improvements
  • ❌ Ignore budget increase recommendations (Google wants more spend, not necessarily better ROI)

Section 7: Documentation

  • Use the Google Ads Monitoring Checklist (Google Sheet) & the Ads Change Log (Google Sheet)
    • Leave notes on both as needed (review the monitoring checklist with the consultant)
  • Log:
    • Changes made
    • Reason for changes
    • Performance impact next week

Section 8: Common Mistakes to Avoid

  • Blindly following Google’s budget recommendations
  • Forgetting to check disapproved ads
  • Ignoring negative keywords → wasted spend
  • Over-optimizing too fast (give changes at least a week before major shifts)