How Auction Insights works
The report samples the auctions your keywords entered and shows the other domains that competed alongside you. It does not expose their spend, but it does expose relative position, which is often more useful. You see which competitors share your auctions, how your impression share compares to theirs, and how often they appeared above you. Because it is scoped to auctions you actually entered, it is a mirror of your own targeting, not a full market map, and reading it as the latter is the most common mistake.
Google Ads Auction Insights columns, one by one
Impression share shows how often each advertiser appeared. Overlap rate shows how often a competitor showed up in the same auction as you. Outranking share shows how often your ad ranked above theirs when you both appeared, or the reverse. Top and absolute top rates show who is winning the premium positions. The signal that matters most is movement. A competitor whose overlap and impression share are climbing week over week is expanding into your space, and that trend is more actionable than any single snapshot.
Where to find Auction Insights in Google Ads
The report is not a separate section of the account. You select the campaigns, ad groups or keywords you want to examine, then open the Auction insights view for that selection, which is why the same report can answer a broad question or a very narrow one depending on what you highlighted first. That selection is the part people get wrong. Running it across the whole account produces an average that blends unrelated fights and hides the specific one you care about. Run it at keyword level on the terms that actually matter. Scope differs by campaign type too, so a Shopping campaign will not give you the same granularity a Search campaign does.
From AdWords to Google Ads: does the report still work the same way?
Yes. AdWords was renamed Google Ads in 2018, and Auction Insights survived the rename intact. If you learned the report as AdWords Auction Insights, the columns you knew are the columns that are still there, and they still mean the same things. What changed is the interface around it rather than the report itself. Anyone following an older walkthrough will find the metrics familiar and the navigation dated, which is the usual source of confusion when a guide written under the old name no longer matches the menus. Here is how to read one row of the table, using made-up numbers for illustration. Say a competitor shows 45% impression share against your 38%, a 60% overlap rate, and you outrank them 40% of the time. That means they show up in most of the auctions you enter, they appear slightly more often overall, and when you both show they usually sit above you. If their top of page rate is also higher than yours, they are likely bidding harder or carrying better ad rank on those terms. The next step is the same one an AdWords user would have taken: segment that row by device and by week to see whether the gap is new or has always been there, and check Quality Score before you reach for a higher bid.
Reading it for real decisions
A rising competitor overlap on your brand terms usually means someone started bidding on your name, which calls for a defensive brand check rather than a broad bid increase. A new entrant climbing on your core non-brand terms may explain a creeping cost per click better than any internal change. The danger is overreacting to a single high-overlap row, since sharing auctions with a large advertiser is normal. Trend and segment, by device and time, before you touch anything.
How iClick uses Auction Insights
iClick uses Auction Insights as an early-warning system rather than a scoreboard. A competitor whose overlap and top-of-page rate are trending up on high-value terms is flagged before the effect shows up as rising cost per click, so the response can be deliberate, whether that is defending brand, improving Quality Score, or ceding unprofitable auctions on purpose. The report is read at the campaign and keyword level, because account-wide averages hide the specific fights that matter.
