To dig into a competitor's paid keywords and ad history, Semrush and SpyFu top our scorecard, neck and neck: SpyFu wins on ad history, Semrush on SEO. Google also lets you look up an advertiser and see its ads in its Ads Transparency Center. Should I Bid finishes fifth: it decides, keyword by keyword, whether to bid.
| Tool | Ad history | Competitor coverage | Pre-spend decision | SEO side | Total /5 |
|---|---|---|---|---|---|
| Semrush | 4 | 5 | 3 | 5 | 4.3 |
| SpyFu | 5 | 5 | 4 | 2 | 4.2 |
| Ahrefs | 1 | 4 | 3 | 5 | 3.1 |
| SE Ranking | 1 | 4 | 2 | 5 | 2.9 |
| Should I Bid (our tool) | 2 | 2 | 5 | 1 | 2.4 |
| Ubersuggest | 1 | 2 | 2 | 3 | 1.9 |
| Google Keyword Planner | 1 | 1 | 3 | 1 | 1.4 |
Each tool gets a whole-number score from 1 to 5 on four criteria, weighted by what an advertiser analyzing competitors is looking for: ad history (30%), coverage of competitors' keywords and ads (30%), help deciding before you spend (20%) and the SEO side of the same tool (20%). Scores are based on the vendors' feature and pricing pages, reviewed on the date shown in the price table. A feature we couldn't verify gets no credit.
Semrush and SpyFu are neck and neck at the top. SpyFu wins on ad history, with 10+ years of archives, and its Google Ads Advisor helps pick keywords. Semrush edges ahead thanks to its SEO side, with an Advertising toolkit and an Ads History report that also cover competitors' ads. Ahrefs and SE Ranking follow: two SEO suites that show competitors' paid keywords and ads, with no verified ad history. Ubersuggest and Google Keyword Planner trail, because they are SEO or keyword research tools first. Google's Ads Transparency Center stays off the scorecard: it's a public ad registry rather than an analysis tool.
Should I Bid is our tool. It finishes fifth because the scorecard follows the search query: most readers first want to see what their competitors are doing, and the top four go further there. It wins only one criterion, the pre-spend decision. That happens to be the one that keeps you from paying for clicks with no buying intent.
Start with what's observable. A Google Ads ad is public: when it shows, you can see the advertiser, the copy and the position on the page, and you can open the landing page. But only for one search, one country, one device and one moment. That's the raw material behind every tool on this list.
Google publishes two official sources. The Ads Transparency Center lets you search for an advertiser and see its ads served on Google Search and YouTube. If you already run campaigns, the auction insights report compares your performance with the advertisers in the same auctions: impression share, overlap rate, outranking share, position above rate, top of page rate and absolute top of page rate. It only covers auctions you take part in, and shows nothing when your impression share is below 10%.
What nobody outside the advertiser and Google knows: its exact bids, its budget, its conversions and what a click is worth to it. A third-party tool can count ads and keywords, but it can't see inside an account. Any spend figure from the outside is an estimate. In Should I Bid, for instance, the percentages in the Competitors module count the keywords an advertiser was seen on, not its impressions.
Above all, keep this in mind: a competitor showing up on a keyword may well be losing money on it. Their presence is a signal to check, not proof that the click is worth its price.
We reviewed each vendor's official feature and pricing pages, on the date shown in the price table. Each tool gets a whole-number score from 1 to 5 on four criteria, weighted by what an advertiser searching for 'google ads competitor analysis tools' is after.
What we didn't do: run the same competitor through all seven tools under real conditions, or measure how accurate their data is. We only credit features verified on the vendors' pages, so a low score can mean 'not verified' rather than 'missing'. Should I Bid is our tool. It's scored on the same criteria as the others and only wins the pre-spend decision.
You want to know what a specific competitor buys and since when: start with SpyFu, or with Semrush if SEO matters just as much to you. You only want to see its ads: the Ads Transparency Center is enough. You already run ads and want to know who outranks you: open the auction insights report in your account.
You're building a campaign and need to pick keywords: that's where competitor research hits its limit. A competitor buying a keyword doesn't prove the click will pay off for you. As an illustration, take an accounting firm in Austin that sees a competitor buy 'cpa firm austin' and 'how to do my own bookkeeping'. If the first search shows ads from firms and contact pages, the searcher wants a provider. If the second shows tutorials and software, the searcher wants to do without one.
Should I Bid's intent analysis does that sorting for each keyword. The analysis reads today's SERP, AI reads the pages that rank, and it weighs it all against what you sell and returns Bid (a score of 70 or above), Test (50 to 69) or Skip (below 50). The two approaches work together: our SpyFu alternative for Google Ads page lays out a workflow that uses both, and our guide on whether to bid on a keyword walks through the checks to run before paying for a click.
Can a competitor buy your brand name as a keyword? According to Google's trademark policy, Google Ads doesn't restrict the use of trademarks as keywords. It can, however, restrict a trademark in the ad copy of a direct competitor, after a complaint from the trademark owner. Local trademark law applies too, so for a specific case, ask a lawyer.
In practice, protecting your brand means knowing who shows up on searches that contain your name, and with what copy. Should I Bid's Competitors module shows other advertisers' ads on those searches, over 90 days, with a badge on the ads that name your brand. You can then judge whether an ad calls for a complaint. The remaining question is whether bidding on your own brand is worth it: analyze it like any other keyword.
Should I Bid isn't market-wide research. It only sees the ads recorded on the Google pages it read for analyzed keywords, in a shared database that is younger and narrower than the history of specialist tools. It doesn't collect ads continuously: a keyword is refreshed when it's analyzed again. It doesn't estimate your competitors' budgets, clicks or bids.
It doesn't do SEO either: no backlinks, no organic rank tracking, no technical audit. What it does is keep you from paying for clicks with no buying intent, with AI reading the pages that rank for you. The Competitors module is included in every plan and browsing it uses no credits. Analyses run on credits, with plans described on the pricing page and free analyses to try, no credit card and no commitment. For agencies, multi-client management keeps each client separate.
| Tool | Starting price | Details | Source |
|---|---|---|---|
| Should I Bid | Per credit (see Pricing page) | Per credit (1 credit = 1 keyword analyzed), free analyses to try, no credit card. Plans described on the Pricing page. | Source |
| SpyFu | from $39/mo ($29/mo billed annually) | “Basic” plan: $39 per month billed monthly, $29 per month billed annually. “Pro + AI”: $59 the first month, then $119 per month ($89 annually). 30-day guarantee. | Source |
| Semrush | from $139/mo ($117.33/mo billed annually) | Entry “SEO” plan: $139 per month billed monthly, $117.33 per month billed annually. 7-day trial, limited free plan. Separate “Advertising” toolkit: Base plan at $99 per month. | Source |
| Ahrefs | from $29/mo | Limited “Starter” plan at $29 per month, “Lite” plan at $129 per month. “Search intents” filter from the “Standard” plan ($249 per month). Free tier (Ahrefs Free) for your own site. | Source |
| SE Ranking | from $129/mo ($103.20/mo billed annually) | “Core” plan: $129 per month billed monthly, $103.20 per month billed annually. 14-day trial, no card. | Source |
| Google Keyword Planner | Free | Free with a Google Ads account. Exact volumes require an account with active spend, otherwise ranges. | Source |
| Ubersuggest | from $29/mo | Three plans at $29, $49 and $99 per month billed monthly; $192, $326 and $657 per year billed annually (“5 months free” offer shown); lifetime access at $290, $490 and $990. 7-day trial on monthly plans. | Source |
Prices verified on . Public prices observed on the vendors’ websites on the date shown. They may have changed since: the source prevails.
Yes, because an ad is public as soon as it shows. You can run the search yourself, use Google's Ads Transparency Center, which lets you look up an advertiser and see its ads, or use a tool. SpyFu and Semrush keep a history of competitors' ads. Should I Bid records the ads seen on the Google pages of your analyzed keywords, with their copy and landing page.
Start from your keywords, not from the competitors. List the advertisers that show up on your key searches and on your brand. Then study their ads and landing pages, and their history in a research tool like SpyFu or Semrush. If you already run ads, add the auction insights report. Before copying a keyword, check that it fits your offer and that the results page shows buying intent.
No. An advertiser's exact bids, budget and conversions stay inside its Google Ads account. The auction insights report gives relative rates, such as overlap rate or outranking share, and only for auctions you take part in. Any spend figure a third-party tool shows is an estimate: treat it as a ballpark, never as an actual number.
On our scorecard, Semrush and SpyFu are neck and neck. SpyFu wins on history, with 10+ years of archived ads, and its Google Ads Advisor helps pick keywords. Semrush edges ahead thanks to its SEO side, with an Advertising toolkit and an Ads History report. If you only run paid search, SpyFu is the most direct choice. Should I Bid finishes fifth: it only wins the pre-spend decision.
According to Google's trademark policy, Google Ads doesn't restrict the use of trademarks as keywords. It can, however, restrict a trademark in a direct competitor's ad copy after a complaint from the owner. Local law applies too. To act, first find out who shows up on your brand searches and with what copy, then have a lawyer review your case.
Yes, with limits. Google lets you look up an advertiser and see its ads in its Ads Transparency Center. The auction insights report comes with your Google Ads account if you already run ads. Google Keyword Planner is free with a Google Ads account, for volumes and CPC ranges. At Should I Bid, browsing the Competitors module uses no credits, and free analyses let you try it with no credit card.