Key takeaways

  • The LinkedIn Ad Library is free and searchable without a login: linkedin.com/ad-library/home.
  • Every LinkedIn ad is public. You don't need to invent anything, the market shows you what's running for free.
  • The most important signal is runtime. Whatever runs for a long time is working.
  • In the EU, you can even see targeting for competitors: job function, industry, region.
  • Don't copy. Extract patterns and test them yourself.

Every ad a company runs on LinkedIn is publicly visible. That's no substitute for testing your own creative, but it's the fastest route to solid hypotheses, and it costs nothing but half an hour. Any team can do this research itself, with no tool budget required. What you build with those findings is covered in the complete guide to LinkedIn Ads for B2B.

What the LinkedIn Ad Library is

The LinkedIn Ad Library is a public archive of every ad running or previously run on LinkedIn. LinkedIn launched it in June 2023 to meet EU transparency requirements, and that's exactly where its value comes from: it isn't built as a marketing tool, it's a mandatory disclosure. It's free, searchable without signing up, and covers every ad since June 2023. Each one stays visible for about a year after its last impression.

Where to find the LinkedIn Ad Library

There are two ways in, and neither requires an ad account:

  • Straight to the library. Open linkedin.com/ad-library/home and search by company name, keyword, country, or date range. No login, no sign-up.
  • Via the company page. Your competitor's LinkedIn page has an "Ads" tab that jumps straight into their library. That's the fastest route when you already know who you want to look at.

Then set two filters, or the result list becomes unusable: country, so you only see ads actually served in your target market, and date range, so you can separate long-runners from short tests.

A quick note from us

That is exactly what we build with B2B teams: not an agency mandate, but your own system. The coaching walks your team through it. The overview shows how we work.

The EU bonus: you can see the targeting

This is the strongest lever for the DACH market, and almost nobody uses it. For ads served in the EU, the LinkedIn Ad Library has to disclose more than it does elsewhere, due to the legal transparency requirement. What becomes visible: the actual advertiser identity behind the account, the ad's targeting criteria such as job function, seniority, industry, region, and company size, and a rough reach range within the EU. So you don't just see what your competitor is saying, you see roughly who they're saying it to. For your own audience planning, that's worth its weight in gold.

The most important signal: runtime

The key question for any competitor ad isn't whether you like it, it's whether it's working. And runtime tells you that. Nobody spends budget on an ad for months if it isn't delivering results. An ad that has been running unchanged for many weeks is therefore a strong signal that it's performing for that competitor. An ad that disappears again after a few days, on the other hand, tells you very little. The date-range filter shows you at a glance what's a long-runner and what was just a short test.

Analyzing competitor ads: what to systematically pull out

To make this more than just browsing, work through a fixed checklist. For every relevant competitor, note:

  • Which ads are active and since when. The long-runners are the interesting ones.
  • The format mix. Is the competitor running Single Image, video, Document Ads, or boosted personal posts? That tells you what they're betting on in the feed.
  • The offer being promoted. Which lead magnet (a free knowledge asset traded for contact details), which webinar, which demo. That reveals their funnel logic.
  • The call to action and the hook. How does the ad open, and what action does it ask for. This is exactly where you'll find the angles that are currently working in the market.
  • The targeting, where visible. In the EU, the criteria shown in the transparency view.

What the Ad Library doesn't show

Stay honest about the limits, or you'll read too much into what you see. The library shows no click-through rates, budgets, conversions, or engagement, and there's no open interface for pulling this data automatically. You see what's running and for how long, but not how profitable it is. That's exactly why runtime is the best available proxy for success, and why every insight you draw stays a hypothesis, never proof.

Copying is the wrong lesson to take

The temptation to simply rebuild a well-performing ad is real. It usually backfires. You don't know the offer behind it or the audience it was built for, and you inherit its weaknesses right along with it.

Google and Meta: the two other libraries

LinkedIn isn't the only channel with a public archive. If your competitor is running broader, a side glance pays off:

  • The Google Ads Transparency Center. Shows which Search, Display, and YouTube ads a given advertiser is running. Useful when your competitor is also capturing demand through Google.
  • The Meta Ad Library. Covers Facebook and Instagram. Less relevant in B2B, but worth a look if your audience spends time there too.

From observation to your own hypothesis

This research only pays off once you translate it into your own tests. If a long-runner looks like a boosted personal post, that's a signal to test Thought Leader Ads yourself. If a particular lead magnet keeps showing up, check whether your offer can compete with it. If a hook pattern repeats, build your own variant for your copywriting. And your competitors' format mix is a good starting point for choosing your own ad formats and generating ideas for your creatives. That's how what others have already tested becomes your own, faster starting point.