Google Ads metrics
What Is a Good Impression Share in Google Ads (and How to Improve It)
A good impression share isn't one number — it depends on the campaign. On brand search you want 90%+; on competitive non-brand search, 40-60% is completely healthy and pushing higher usually means overpaying. This guide gives the benchmarks by campaign type, shows how to read lost impression share due to budget vs rank, and lists five concrete ways to improve it — plus when you should ignore it entirely.
Definition first: impression share is the impressions your ads received divided by the impressions they were eligible for. Eligible for 1,000, showed 600 times → 60% impression share. For the short version, see the impression share glossary entry.
What counts as a "good" impression share?
The honest answer is that it varies by campaign type and intent. Here are the benchmarks I use when auditing small-business accounts:
| Campaign type | Healthy IS | Why |
|---|---|---|
| Brand / trademark search | 90%+ | You should own almost all of your own brand searches. Anything below ~85% usually means budget caps or a competitor bidding on your name. |
| Non-brand search (competitive) | 40-60% | Perfectly healthy. Chasing 90% on competitive commercial terms usually means overpaying for the marginal impression. |
| Non-brand search (niche / low volume) | 60-80% | Higher is reasonable when volume is small and CPCs are affordable. |
| Shopping | 30-50% | Shopping impression share is spread across a huge product-query surface; lower numbers are normal and not automatically a problem. |
| Display / video | Not a priority | Impression share matters far less here — optimize for cost per outcome, not coverage. |
Notice that higher is not always better. Impression share is a coverage metric, not a performance metric. A campaign at 45% impression share hitting its target cost per acquisition is beating a campaign at 95% that's bleeding money.
Lost IS (budget) vs lost IS (rank): the diagnosis
When your impression share is lower than you'd like, Google tells you why. The two "lost impression share" columns point to completely different fixes — reading them wrong wastes money.
| Metric | What it means | How to fix it |
|---|---|---|
| Lost IS (budget) | Your ads stopped showing because the campaign ran out of money before the day ended. | Raise the budget, or tighten targeting (negatives, schedule, geo) so the existing budget covers fewer, better auctions. |
| Lost IS (rank) | Your Ad Rank wasn't high enough to enter the auction — a mix of bid, Quality Score, and expected impact of assets. | Improve Quality Score (relevance, landing page, CTR), raise bids on terms that convert, or drop terms you can't win profitably. |
Rule of thumb: if you're losing share to budget on a campaign that converts profitably, that's the single clearest signal to add budget in all of Google Ads. If you're losing it to rank, throwing more money at bids only helps if the terms are actually worth winning.
5 concrete ways to improve impression share
If lost IS (budget) is high on a profitable campaign, raise the daily budget or move spend from an underperforming campaign. This is the fastest, highest-confidence lever.
Tighter ad-group-to-keyword relevance, better ad copy that lifts CTR, and faster, more relevant landing pages all raise Ad Rank without raising bids. Cheapest way to buy more share.
On keywords or products that hit target cost, a bid increase can recover rank-based loss profitably. Do this per-term, not account-wide.
Add negative keywords, dial in geo and ad scheduling, and cut broad terms that eat budget without converting. Fewer, better auctions means higher share on the ones that matter.
The Target Impression Share strategy is genuinely useful for brand protection. On non-brand it tends to overspend chasing coverage — leave those on a conversion-based strategy.
When NOT to chase impression share
Impression share becomes a trap the moment it turns into the goal. Signs you should stop chasing it:
- Your non-brand cost per acquisition is already at or above your ceiling — more share just means more expensive conversions.
- You're in a display or video campaign, where coverage rarely correlates with outcomes.
- A competitor is inflating auction prices on vanity terms you don't actually need to win.
- Your budget is small — with limited spend, concentrating share on your best terms beats spreading thin coverage everywhere.
For the plain definition and where impression share sits among related metrics, keep the glossary entry handy. For the broader tune-up, the Google Ads audit checklist covers bidding and budget in context.
Frequently asked questions
What is a good impression share in Google Ads?
It depends on the campaign. For brand search you want 90%+ because you should dominate your own name. For competitive non-brand search, 40-60% is healthy — pushing higher usually means overpaying for low-value auctions. Shopping typically sits at 30-50%. There is no single 'good' number that applies to every campaign.
What is impression share in Google Ads?
Impression share is the percentage of impressions your ads actually received divided by the total impressions they were eligible for. If you were eligible for 1,000 impressions and showed 600 times, your impression share is 60%. Google splits the missing share into lost impression share due to budget and lost impression share due to rank.
Is 100% impression share good?
Rarely. On brand terms it can be fine. On competitive non-brand terms, 100% almost always means you're bidding far above the efficient level and buying impressions that don't convert. It's usually a sign to reallocate budget, not a goal to chase.
Should I try to increase my impression share?
Only when the extra impressions are profitable. If you're losing impression share to budget on a campaign that converts well below your target cost, more budget is a clear win. If you're losing it to rank on terms that already run at a marginal return, chasing share destroys efficiency.
What's the difference between lost IS (budget) and lost IS (rank)?
Lost IS (budget) means you missed impressions because the campaign ran out of money. Lost IS (rank) means your Ad Rank wasn't high enough to enter the auction. The fix is different: budget loss is solved with more budget or tighter targeting; rank loss is solved with better Quality Score, higher bids, or dropping unwinnable terms.
Not sure if your impression share is a problem?
In a Google Ads audit I check whether lost share is actually costing you conversions — or whether chasing it would just burn budget.
See Google Ads audit