LinkedIn Ad Library: how to use it and its real limits

The LinkedIn Ad Library is the youngest and least-known of the big platform ad libraries, and for B2B marketers it's arguably the most valuable: it shows you exactly which campaigns, lead magnets and job ads any company is paying to put in front of your buyers. We track live LinkedIn ads for 72 UK brands (1,674 creatives captured since late July 2026), and this guide covers both how to use the library properly and the limits we've hit first-hand: no spend or performance data, impression ranges for EU audiences only, a one-year memory, and no self-serve API.

What the LinkedIn Ad Library is

The Ad Library is LinkedIn's public record of ads that have run on the platform. Per LinkedIn's own documentation, it covers ads served after 1 June 2023 and keeps each ad visible for one year after its last impression. You don't need a LinkedIn account to browse it. Like TikTok's equivalent, it exists largely because the EU's Digital Services Act forced platforms to publish ad repositories, and as we'll see, that origin story explains its most annoying limitation for UK researchers.

Ads appear in the library shortly after their first impression, so what you're looking at is close to a live feed of a company's paid activity, including campaigns that never touch their organic Posts tab.

How to search the LinkedIn Ad Library

1. Go to linkedin.com/ad-library. No login needed.
2. Search by company name. This matches the advertiser or the payer, which are listed separately on each ad and occasionally differ (an agency or holding company paying on a brand's behalf is visible here and almost nowhere else).
3. Or search by keyword. The library matches words in ad copy, so searching "business loan" or "expense management" surfaces every advertiser paying to own that phrase, not just the rivals you already know about.
4. Filter by country and date range to narrow to ads your actual market saw.

The company-page shortcut: "View ad library"

There's a second route most people miss. Open any company's LinkedIn Page, click the Posts tab, and look for a View ad library link in the left-hand sidebar. It jumps straight to that company's ads with the advertiser filter pre-applied. That's faster than searching, and it sidesteps the name-matching guesswork when a brand's legal name differs from its trading name. If the link is absent, the company simply has no ads in the library window.

What you can see on every ad

• The full creative: image, video, carousel slides or document preview, plus intro text, headline and the CTA button label.
• Advertiser and payer names: who ran it and who paid for it.
• Ad format: single image, video, carousel, document, text, event, job, and so on. Format is strategy on LinkedIn (more below).
• The date range the ad ran: run length is the closest thing to free performance data. Advertisers kill losers; an ad still running after months is earning its budget.

Restricted ads are the exception: for ads LinkedIn has restricted, the library hides the preview, advertiser and payer and shows only that a restricted ad existed.

The EU-only catch: why UK marketers get less data

The library's best fields — estimated impressions, impression split by country, and the targeting parameters the advertiser chose — are published only for ads targeted to the European Union, because that's what the DSA compels. The targeting disclosure is genuinely rich when you get it: language, job function and seniority, skills, company size, industry, even company growth rate.

The consequence for UK research is blunt: post-Brexit, a campaign targeted only at the United Kingdom carries none of it. You get the creative, the dates and the format, but no impressions and no targeting. The workaround is to look for the same campaign's Irish or wider-EMEA siblings: UK advertisers frequently run one campaign across UK + EU, and the EU-delivered version discloses the targeting logic that almost certainly applies to the UK version too.

What the LinkedIn Ad Library doesn't show

• No spend data — not even ranges, on any ad, anywhere.
• No engagement or performance metrics — clicks, leads and conversions are invisible. A winning ad and a dud look identical.
• No history beyond one year — ads disappear twelve months after their last impression, so you cannot reconstruct a competitor's strategy from before mid-2023 or audit anything they quietly retired over a year ago.
• No alerts or change tracking — the library is a search box, not a monitor. It won't tell you a rival launched twelve new ads on Tuesday; you have to keep coming back and remember what you saw.
• No self-serve API — unlike Meta's Ad Library API, LinkedIn's equivalent is gated behind an application review in its developer portal, with documentation that is thin to broken. In practice, programmatic access means building and maintaining your own collection, which is exactly what we did.

What 1,674 tracked LinkedIn ads tell us about format strategy

Since late July 2026 we've captured 1,674 LinkedIn ads across 72 of the UK brands we track, 606 of them seen live in the past fortnight. The format mix is the first thing worth reading, because on LinkedIn the format largely declares the objective:

Three findings fall out of that table and the per-brand splits behind it:

1. Video commitment varies wildly between direct rivals

In the same fintech bracket, iwoca has 70 of its 116 tracked LinkedIn ads in video (60%), while Wise, our single biggest LinkedIn advertiser at 154 tracked ads, runs just 10 videos (6%) and carries its volume on static images and text. Neither mix is "right", but if you compete with one of them, their bet on production-heavy versus volume-heavy creative is a strategic disclosure sitting in a free public database.

2. Document ads are the B2B lead-magnet tell

Document ads, the swipeable PDF format, are LinkedIn's most distinctive unit, and who leans on them says a lot. Thriva runs 30 of them, the most of any brand we track, with Xero and iwoca on 14 each. A document ad is almost always a guide, report or checklist feeding a lead-gen funnel, so a rival's document ads are effectively a public index of their gated content strategy.

3. The library leaks recruitment strategy too

124 of our tracked ads are job ads — paid promotion of open roles. Revolut and Chip have 14 each in our window, with Wise on 12. Hiring spend is forward-looking competitive intelligence: a competitor paying to fill sales or engineering roles is telling you where they plan to grow before any product announcement does.

Using it for competitor research: a working routine

1. Baseline each competitor via the company-page "View ad library" link. Note the volume, the format mix and the recurring hooks.
2. Read run dates, not just creatives. Sort mentally into long-runners (proven messages) and this month's launches (what they're testing now).
3. Keyword-search your category terms to find advertisers you didn't know were bidding for your buyers.
4. Cross-reference the EU versions of UK campaigns for the targeting disclosure you don't get domestically.
5. Snapshot on a schedule. The library has no memory you control and no alerts, so the value compounds only if you (or a tool) capture it repeatedly and diff the captures.

Step five is the honest gap. The library is excellent at answering "what is this company running right now?" and structurally incapable of answering "what changed, and what does it mean?", which is the question that actually drives decisions. That's the part we built AdRival for: we capture competitors' ads across LinkedIn, Google, Meta and TikTok on a rolling schedule, qualify each creative for offer, hook, audience and urgency, and report the deltas, so a new lead magnet, a pricing push or a hiring surge surfaces without anyone remembering to go and look.

How it compares with the other ad libraries

If you're building a cross-platform research habit, the four libraries have very different personalities. We've written honest guides to each:

• The Meta Ad Library is the most generous: every live ad, keyword search, and a proper public API, but with almost no history.
• The Google Ads Transparency Center has the longest lookback but caps what you can see per advertiser (we measured a hard 900-creative ceiling).
• LinkedIn sits in between: full creative access and a uniquely honest payer field, hobbled by EU-only depth and no practical programmatic route.

For the wider method — building a repeatable competitor-ad workflow across all of them — start with our guide to how to see competitor ads.

Our numbers describe the 72 UK brands whose LinkedIn ads we track, captured between 20 July and 22 October 2026. They're a deliberate sample of consumer and B2B advertisers, not a census of LinkedIn; your category's format mix will differ, and that difference is precisely what's worth measuring.