Competitor ad research

Competitor ad research shows what other advertisers are doing: which keywords they bid on, how their ads are worded, which offers they push and where they send the traffic. It helps you avoid starting from a blank page and spot gaps others have missed.

Two free public sources come from the platforms themselves. The Meta Ad Library lists ads currently running on Facebook and Instagram, and the Google Ads Transparency Center shows ads from verified advertisers across Google's networks. Neither shows spend or performance, but both show real ads.

Paid tools add history and estimates. Semrush and SpyFu show the paid keywords they have seen competitors bid on, examples of ad copy over time and estimated budgets. Similarweb estimates how much of a site's traffic comes from paid search or display. All of these numbers are estimates from each company's own data, not figures from the advertisers or the platforms.

Use the research to learn patterns, not to copy. A keyword a competitor has paid for over many months probably works for them; an ad they keep running is probably not losing money. Copying wording or offers word for word can raise trademark and policy problems and rarely makes you stand out.

5 AI PPC tools in competitor ad research

Semrush

Marketing suite whose advertising research shows the keywords, ad copy and estimated spend of competing Google advertisers.

  • Developer API

SpyFu

Competitor research tool that shows the paid keywords, ad history and estimated budgets of other advertisers.

  • Developer API

Similarweb

Website traffic estimates by channel, including paid search and display, for comparing competitors.

Meta Ad Library

by Meta

Free public library of ads currently running on Facebook and Instagram, searchable by advertiser or keyword.

  • Free to use or free plan
  • Works with Meta ads

Google Ads Transparency Center

by Google

Free Google site that shows ads run by verified advertisers across Search, YouTube and display.

  • Free to use or free plan
  • Works with Google Ads

Look at the landing pages behind competitor ads as well as the ads themselves. The offer, the form, the proof shown and the price signals tell you more about their strategy than the headline does. Note which pages stay up for months; those are the ones that earn their keep.

Compare what you see against your own strengths. If every competitor leads with price, a clear guarantee, faster service or a narrower focus may stand out more than another discount. Research should shape your angle, not decide it.

Keep a simple log of what you find, with dates and screenshots. Patterns over a few months tell you far more than a single snapshot, and the log makes it easy to see when a competitor changes its offer or pulls out of a market.

Mind the limits of the tools. Smaller competitors or those in niche markets may barely appear in Semrush or SpyFu, because the tools see only part of the market. In those cases, searching your main keywords yourself from your target area, on a phone and a computer, is often the most accurate view you will get.

Questions about competitor ad research

Can I see how much a competitor spends on ads?

Not exactly. Tools like Semrush, SpyFu and Similarweb estimate spend from their own data. Treat the figures as rough guides for comparison.

Is the Meta Ad Library free?

Yes. Anyone can search it for ads running on Facebook and Instagram by advertiser name or keyword, without logging in to an ad account.

Can I bid on a competitor's brand name?

The platforms have their own rules on trademarks in keywords and ad text, and the law varies by country. Check the platform's trademark policy and get advice if you plan to do it.

How often should I check competitor ads?

A monthly look is enough for most small advertisers. Check more often when launching in a new market or when your results change suddenly.

Related categories