Google Ads gives you a window into what your competitors are doing. It is called the Auction Insights report, and most advertisers either ignore it entirely or glance at it without understanding what the numbers mean.

That is a missed opportunity. Auction Insights is the only source of competitive data inside Google Ads. It tells you who is competing against you, how aggressively they are bidding, and how your visibility compares to theirs. When you know how to read it, patterns emerge that can fundamentally change how you manage your campaigns.

This article breaks down every metric in the report, explains what each one actually tells you, and shows you how to turn the data into actionable competitive intelligence. If you want a quick-start version, our companion piece on how to read the Auction Insights report covers the essentials.

Accessing Auction Insights

You can access Auction Insights at the campaign, ad group, or keyword level. The report is available for Search and Shopping campaigns. Navigate to the campaign or keyword you want to analyse, click the "Auction Insights" tab, and select your date range.

A few things to know before you start:

The report shows data only for auctions where your ad was eligible to appear. It is not a complete picture of the competitive landscape.
Competitors are identified by display URL domain, not by account or campaign name. You will see domains, not company names.
Data is aggregated. You see averages over your selected date range, not individual auction results.
The report does not show competitor bids, budgets, or costs. You see relative visibility metrics, not financial data.

The Six Metrics Explained

Impression Share

What it is: The percentage of total eligible impressions that your ads received. If there were 10,000 searches where your ad was eligible and you appeared in 7,000 of them, your Impression Share is 70%.

What it tells you: How much of the available opportunity you are capturing. An Impression Share below 80% on brand campaigns suggests you are missing a significant number of branded searches — either because your budget is too low or your bids are not competitive enough.

What to watch for: Declining Impression Share over time indicates either increasing competition or budget pressure. If your brand keyword Impression Share drops from 95% to 75%, something has changed — most likely a new competitor entering the auction.

How to use it: Compare your Impression Share against each competitor listed in the report. If a competitor has higher Impression Share than you on your own brand terms, they are more visible than you are for your own brand name. That is a problem.

For non-brand campaigns, Impression Share helps you identify opportunities. If you have a 40% Impression Share on a highly profitable keyword, there is significant room to grow by increasing bids or budget.

Overlap Rate

What it is: How often a competitor's ad appeared in the same auction as your ad. If a competitor has a 60% Overlap Rate, their ad appeared alongside yours in 60% of your impressions.

What it tells you: Which competitors you are consistently facing in the same auctions. High Overlap Rate means you are competing directly and frequently for the same searches.

What to watch for: A competitor with a suddenly high Overlap Rate on your brand terms means they have started bidding on your brand name. This is one of the most important signals in the report. If you see a new domain appearing with a 40%+ Overlap Rate on your brand campaign, they are actively targeting your brand. A sudden spike in overlap often goes hand in hand with branded CPC increases — both are signs of new competitive pressure.

How to use it: Prioritise your competitive analysis based on Overlap Rate. Competitors with high Overlap Rates are the ones affecting your performance most directly. Focus your monitoring and defensive strategy on these domains first.

Position Above Rate

What it is: How often a competitor's ad appeared in a higher position than your ad, in auctions where both ads appeared. If a competitor has a 30% Position Above Rate, their ad was above yours in 30% of shared auctions.

What it tells you: Who is outbidding you and how consistently. A competitor with a Position Above Rate over 50% is more aggressive than you in the auctions you share.

What to watch for: On brand campaigns, nobody should have a Position Above Rate higher than 10-15% against you. If a competitor is consistently appearing above your brand ad, they are bidding aggressively on your brand terms and likely capturing clicks that should be yours.

On non-brand campaigns, Position Above Rate reveals the competitive hierarchy. If three competitors consistently appear above you, they are either bidding more, have higher Quality Scores, or both.

How to use it: Combine Position Above Rate with Overlap Rate for a complete picture. A competitor with 80% Overlap Rate and 60% Position Above Rate is both omnipresent and dominant. That demands a response. A competitor with 20% Overlap Rate and 70% Position Above Rate is aggressive but sporadic — less of a concern.

Top of Page Rate

What it is: How often your ad (or a competitor's ad) appeared at the top of the search results page, above the organic listings. This metric is shown for both your ads and your competitors.

What it tells you: Whether your ads are appearing in the premium positions. Top of page ads get significantly higher click-through rates than ads below organic results. If your Top of Page Rate is 40% but a competitor's is 85%, they are capturing the prime real estate far more often.

What to watch for: A sudden drop in your Top of Page Rate usually means competitors have increased bids, pushing you down. On brand campaigns, your Top of Page Rate should be very high — above 90%. If it is lower, you are losing premium positioning on your own brand name.

How to use it: If your Top of Page Rate is low on important keywords, consider increasing bids or improving Quality Score. For brand campaigns specifically, a low Top of Page Rate combined with high competitor Overlap Rate means a competitor is actively and successfully outbidding you on your own brand.

Absolute Top of Page Rate

What it is: How often your ad appeared as the very first ad — position one, above all other ads and organic results.

What it tells you: Whether you are winning the top spot. On brand terms, this should be consistently above 85%. For non-brand terms, it depends on your bidding strategy and the competitive landscape.

What to watch for: The gap between your Top of Page Rate and your Absolute Top of Page Rate. If you are on the first page 80% of the time but in position one only 30% of the time, there are multiple competitors consistently outbidding you.

How to use it: This metric matters most for brand campaigns. If you are running brand ads, you should be in the absolute top position the vast majority of the time. If you are not, your bids are too low relative to competitors who are targeting your brand name.

Outranking Share

What it is: How often your ad ranked higher than a competitor's ad, or appeared when theirs did not, as a percentage of total eligible auctions. This is the broadest competitive metric — it combines position advantage and impression advantage.

What it tells you: Your overall competitive position against each specific competitor. An Outranking Share above 50% means you are winning the head-to-head more often than not.

What to watch for: Declining Outranking Share against a specific competitor signals that they are becoming more aggressive — increasing bids, improving quality, or expanding their targeting.

How to use it: Outranking Share is your single best summary metric for competitive position. Track it over time for your top 3-5 competitors. Trends in this metric tell you who is gaining ground and who is retreating.

How to Interpret Trends

Individual data points in Auction Insights have limited value. The real intelligence comes from trends over time.

Export the report monthly and build a spreadsheet that tracks each metric for your key competitors. Four patterns are particularly important:

New entrants. A domain that was not in your Auction Insights last month but appears this month with 30%+ Overlap Rate has started targeting your keywords. If this appears on your brand campaign, it demands immediate investigation.

Increasing aggression. A competitor whose Position Above Rate rises from 20% to 50% over three months is steadily increasing their bids. They may be preparing for a larger push or testing how much market share they can capture.

Retreating competitors. A domain whose Overlap Rate and Impression Share both decline is either reducing budget or shifting to other keywords. This creates an opportunity to capture additional traffic at lower cost.

Seasonal patterns. Some competitors increase activity during specific periods — peak trading season, end of financial year, or around industry events. Recognising these patterns helps you anticipate competitive pressure and adjust bids proactively.

Limitations of Auction Insights

The report is useful but has significant blind spots.

No keyword-level detail in PMax. Performance Max campaigns provide Auction Insights at the campaign level only, with no visibility into which keywords triggered the competitive overlap. You cannot tell whether a competitor is appearing on your brand terms or generic terms within PMax.

Aggregated data only. You see averages, not individual auctions. A competitor might appear above you at 3am (when it matters less) and below you at 2pm (when it matters more). The report does not distinguish between these scenarios.

Eligible impressions only. The report covers auctions where your ad was eligible. If your budget runs out at noon, you have no visibility into afternoon competitive activity.

No geographic breakdown. You cannot see whether a competitor is targeting specific regions. They might be bidding on your brand name only in London while ignoring the rest of the country. Auction Insights shows a national average.

No device breakdown. Competitive dynamics often differ between mobile and desktop. A competitor might dominate on mobile but barely appear on desktop. The report does not reveal this.

Retrospective, not real-time. Auction Insights data has a processing delay. By the time you see a new competitor in the report, they may have been bidding for days or weeks. For brand defence, this delay is a significant problem.

Filling the Gaps with Automated Monitoring

Auction Insights gives you a useful historical overview but falls short for proactive competitive intelligence — particularly for brand protection.

The gaps that matter most are:

Real-time detection of new competitors on your brand terms
Geographic specificity — knowing where competitors are targeting
Device-level visibility — understanding the mobile vs. desktop picture
Continuous coverage — monitoring around the clock, not just when you check

Automated SERP monitoring tools address these limitations by checking your brand keywords across locations, devices, and times of day, and alerting you when competitor ads appear.

If you want to see who is currently bidding on your brand terms, run a free brand bidding audit. It checks for competitor ads on your brand keywords and gives you an immediate picture of your competitive exposure — including the geographic and device-level detail that Auction Insights cannot provide.

Putting It All Together

Auction Insights is not a strategy in itself. It is a data source. The value comes from how you use it.

For brand protection: Monitor Overlap Rate and Position Above Rate on your brand campaigns monthly. Any new competitor or sudden increase in competitive activity should trigger a review of your brand defence strategy. Combine Auction Insights data with automated monitoring for complete coverage.

For competitive positioning: Track Outranking Share against your top competitors on non-brand campaigns. Use trends to inform bid adjustments, budget allocation, and Quality Score improvements.

For budget planning: Impression Share tells you how much opportunity you are missing. If a profitable keyword has 50% Impression Share, doubling your budget could significantly increase conversions — provided the incremental CPA remains acceptable.

For agency accountability: Ask your agency to include Auction Insights trends in monthly reporting. If they are not monitoring competitive activity, they are managing your campaigns with one eye closed.

Use the brand bidding calculator to model the financial impact of competitor brand bidding based on what Auction Insights reveals, and make informed decisions about where to invest your defensive budget.

The data is there. Most advertisers simply do not look at it. Start looking.

Google Ads Auction Insights Explained: What Competitor Data Actually Tells You