How to see your competitors’ ads on LinkedIn Ads, Google Ads and Microsoft Ads
Where to find a competitor’s ads on each ad platform, what each ad library shows and hides, and how to keep track of them every week.
Romain Guyon
Blog
Guides to reading B2B advertising: what a market runs on LinkedIn Ads, Google Ads and Microsoft Ads, and what the numbers say.
Google Ads library: how to see any company’s Google ads
How to search the Ads Transparency Center, what each ad shows inside and outside Europe, and what it never shows.
Romain Guyon
LinkedIn Ad Library: how to see any company’s ads, and what it won’t tell you
How to search it, how to read the run dates, impressions and targeting of EU ads, and where it stops being enough.
Romain Guyon
B2B advertising on LinkedIn Ads: Q3 2026 in numbers
How many B2B companies advertised, how many ads they ran, how long the ads lasted and which formats they used, from 737 companies measured every week.
Romain Guyon
ChatGPT ads: which B2B companies are already set up for them
There is no ChatGPT ad library yet, but the advertisers who measure ChatGPT ads leave a trace on their website.
Romain Guyon
LinkedIn Ads formats: which ones B2B advertisers actually run
What each LinkedIn Ads format is for, and how often 432 B2B advertisers used each one in October 2026.
Romain Guyon