Free competitor research tools exist, and some of them are excellent. The catch is what they cover. Most free sources either show official data about your own site, or show one narrow thing about everyone, usually ads. This list goes through what you can learn for nothing, where the free route stops, and the cheapest way past that point.
1. Google search itself
Cost: nothing. Type in the ten searches you most want to win and write down which sites hold the first page. Repeat in a private window so your history does not skew it. After ten searches, the names that keep coming back are your search competitors.
What it misses: anything below page one, and any rival who does not rank for those exact phrases.
2. Google's ad transparency hub
Cost: nothing. In the Ads Transparency Center you search an advertiser and see the ads it has run, with each ad's format, region and the date it last ran. It is the official record from Google.
What it misses: spend, outside political ads, and the keywords behind each ad.
3. Meta Ad Library
Cost: nothing. It lists active ads running across Meta's apps, which is how you see what a rival is pushing on Facebook and Instagram this week. Political and issue ads also show spend and reach; everyday commercial ads do not.
4. LinkedIn Ad Library
Cost: nothing. Covers ads that ran after June 1, 2023, and keeps each one for a year after its last impression. Search by company, payer, keyword, country or date range. Useful for B2B rivals.
5. Google Keyword Planner
Cost: nothing with a Google Ads account. It estimates monthly searches for words you type in.
What it misses: who ranks for those words. It answers "is this search popular", not "who owns it".
6. Google Search Console
Cost: nothing. Exact clicks, queries and linking sites, plus the newer generative AI report with AI Overviews and AI Mode impressions.
What it misses: everyone except you. It only opens for sites you have verified.
Where free stops
Put those six together and you know your own site well and your rivals' ads well. You still cannot see a rival's rankings, its estimated traffic, or who links to it. That data has to come from a provider that crawls search results and the web, and providers charge for it.
The cheapest paid step
If you only need that data now and then, a monthly suite is a poor deal. seogeoaeo.ai charges per report instead. Its smallest plan is $29 a month for 2,000 credits, and each tool shows its price first.
| Free gap | seogeoaeo.ai tool | Credits |
|---|---|---|
| Who your search rivals are, beyond page one | Competitor Finder | 38 |
| A rival's keyword count, visits and links in one go | Domain Overview | 50 |
| The searches a rival ranks for | Competitor Keywords | 35 |
| Searches a rival wins where you are absent | Keyword Gap | 85 |
| A rival's strongest linking sites | Backlink Finder | 70 |
| A rival's Google ads summarized | Competitor Google Ads | 15 |
| Active Facebook and Instagram ads | Meta Ad Finder | 5 |
A typical deep look at one rival, using Domain Overview, Competitor Keywords and Keyword Gap, is 170 credits. That covers about eleven rivals a month on the smallest plan, with nothing spent on months you do not research.
There is also a free preview: enter your site on the seogeoaeo.ai home page and it shows the crawl, indexing, on-page and structured data health of your own pages before you pay.
A fair warning on paid numbers
Every traffic, keyword and link figure for someone else's site is modeled. It is useful for comparing rivals with each other. It is not a reading of their analytics. Tools disagree, and none of them is wrong in a way you can prove.
Who should skip the paid step
If you only advertise and never think about search, the three ad libraries may be all you need. And if you want daily rank tracking, a pay-per-run tool is the wrong shape; that is the job of a full suite.
Quick picks
- Zero budget, want to see rival ads: the three ad libraries.
- Zero budget, want to fix your own site: Search Console.
- Small budget, want to see a rival's search and links: seogeoaeo.ai per report.