How to Read Facebook Ad Library Results (Every Field)

How to read Facebook Ad Library results comes down to six fields: the advertiser name, the Library ID, the Started Running date, the platform icons, the creative itself, and the CTA button. Everything else on the card is layout, not information. Once you know what those six actually mean, a wall of ad cards turns into a research tool instead of a scroll of noise.

This guide walks through every field on a Facebook Ad Library card, in the order that actually matters, plus what each one can't tell you — the short version of how to read Facebook Ad Library data without guessing.

What is a Facebook Ad Library result?

A Facebook Ad Library result is one card representing one specific ad creative running through Meta. Search any brand name or keyword at facebook.com/ads/library and every active ad matching it shows up as a card.

Each card is a snapshot, not a live feed. It's built from the creative Meta approved, plus a handful of metadata fields Meta chooses to show publicly. Nothing on the card updates in real time — refresh the page and you're pulling a new copy of the same static data.

How to read Facebook Ad Library results, field by field

Here's what's actually on the card, top to bottom, and what each piece is for.

The Library ID is worth pausing on. If a brand tests five thumbnails for the same video, that's five different Library IDs, not one ad with five versions. Treat each ID as its own creative when you're counting what's running.

What "Started running on" tells you (and what it doesn't)

Longevity is a proxy, not proof. A brand can also run a weak ad for a week out of habit before pulling it, or keep a mediocre one alive because nobody's checking the numbers.

Read the date as a filter, not a verdict. Ads live for a single day tell you almost nothing. Ads still live after two or three months are worth opening and studying closely — that pattern is reliable enough that we wrote a full breakdown of what ad longevity actually signals and how long is "long enough" by category.

1. 1
   Check Started running onThe closest thing to a free performance signal
2. 2
   Read the Library IDConfirms you're looking at one specific creative
3. 3
   Scan the platform iconsShows whether it's Feed, Reels, Stories, or all three
4. 4
   Open the full creativeWatch the video or click through every carousel card
5. 5
   Note the CTA buttonShows the exact action the advertiser is asking for

Video, image, and carousel cards: what changes

Not every field behaves the same way across formats. A single image card is the whole ad — what you see is what ran. A video card hides its hook behind a thumbnail that sometimes grabs an odd frame, so the CTA and caption text matter more until you press play.

Carousel cards are the easy one to misread. Meta shows one card at a time by default, and it's easy to judge the whole ad off the first frame. Click through every card — the offer, price, or angle often changes from card three to card seven.

What a Facebook Ad Library result never shows you

This is the part most people get wrong on their first pass through the Library. No card, no matter how long you study it, shows spend, budget, clicks, impressions, or ROAS for a normal commercial ad.

The one exception is US political and social-issue ads, which carry a spend range field under a different disclosure rule. That field doesn't exist on ecommerce or app-install ads, so if a card looks like it's missing spend data, it isn't hidden — it was never collected for that ad type.

Reading results for competitive research, not just curiosity

Knowing how to read Facebook Ad Library results by hand is enough if you're checking one competitor's ad once. If you're tracking ten competitors every week, the manual version gets slow fast — you're opening dozens of cards, re-checking dates, and there's no download button to save any of it.

That's the gap Klipio's free Chrome extension fills. It adds a download button to every card inside the real Ad Library, pulls full HD video, images, and every carousel frame, and can scan an entire search and pack every running ad into one ZIP with a searchable index. It's 100% free, needs no account, and runs on your own connection.

For the fastest overview of everything a brand is running, start with our guide to the Meta Ad Library, which covers search syntax and the EU-only fields most people miss. If your goal is a running list of what competitors are testing, seeing every ad a competitor runs covers the workflow end to end. And if you outgrow manual reading entirely, our roundup of paid ad spy tools compares which ones actually add spend and engagement estimates on top of the raw Library data.

FAQ

What does "Started running on" mean in the Facebook Ad Library?

It's the date that exact ad creative first went live, not the date the brand started advertising overall. If a brand refreshes the thumbnail or swaps the video, that creates a new Library ID with its own new Started Running date.

Why can't I see how much an advertiser is spending?

Meta doesn't publish spend, budget, or ROAS for normal commercial ads in the public Ad Library. The only exception is US political and social-issue ads, which show a spend range under a separate disclosure rule that doesn't apply to ecommerce or app ads.

How long do ads stay in the Ad Library after they're paused?

Outside the EU, an ad disappears from the Library as soon as it's paused or its budget runs out — there's no archive. Inside the EU, paused and ended ads stay visible for a period, along with limited reach and targeting data political ads don't get elsewhere.

What's the difference between the EU and US versions of a result?

EU results include inactive ads plus limited targeting and reach numbers that US and rest-of-world results don't show. US political and social-issue ads add a spend range field instead, which is specific to that ad category.

Does the Library ID number mean anything I can use?

It's mainly useful as a unique identifier — it confirms you're comparing one specific creative rather than a brand's whole account. It doesn't encode spend, performance, or date information on its own; read the Started Running field for that.

Can I tell if an ad is actually working just from the Ad Library?

Not with certainty, but longevity is a strong hint — few brands keep paying for an ad that's losing money. Combine the Started Running date with how many variations of the same angle a brand is running; multiple versions of one idea is usually a sign it's converting.