Privacy-first ad marketplace
Advertising matched to content, not people.
Leedas connects advertisers with publisher inventory using contextual AI classification and a transparent auction — with no behavioral tracking and no cross-site profiles.
No credit card required to explore the dashboard.
Live on Leedas
Publishers already running Leedas
- Song.Reviewssong.reviewsIndependent song reviews and music criticism
- The Bible Biblethebiblebible.comFull-text Bible reference in public-domain translations
- HotGameNewshotgamenews.comAAA releases and this week's gaming news
- TheGameCratethegamecrate.comRetro, indie and overlooked games worth remembering
- Learn to Write Codelearntowritecode.comProgramming concepts first, then real languages
- Coders Rockcodersrock.comFree coding practice that runs in your browser
Principles
Eight governing platform principles
Matching ads to page content instead of a person isn't new by itself — several networks already do some version of it. What's harder to copy is running all eight of these in the same product.
Content, not people
Ads are matched to what a page is about, not to who is reading it. No behavioral profiles, no cross-site tracking.
Explicit control
Publishers choose what categories of ads they accept. Advertisers choose what content they'll appear next to.
Transparent economics
Revenue share, fees, and settlement rules are published, not buried. What you're owed is always visible.
Money and credit stay separate
Cash spend and platform credit run through isolated pools, so one can never quietly subsidize the other.
An immutable ledger
Every balance is a projection of an append-only event log — reconstructable, auditable, never edited in place.
AI assists, it doesn't decide
AI classifies, scores, and flags. Deterministic logic — not a model — settles money and moves balances.
Strong anti-fraud measures
Publishers prove ownership before they can monetize. Every destination link is checked before a creative can run. Every payout sits through a 90-day settlement review before a person authorizes it — nothing moves on autopilot.
High speed, low drag
Maximum optimization across all functionality. We hate slow-loading pages as much as you do.
Two sides, one marketplace
How it works
Add your site
Register your organization, then add every site or app you want to monetize.
Verify ownership
Prove control with a DNS TXT record or a well-known file. No SDK to integrate before you're verified.
Earn from matched ads
Once your content is classified, relevant ad units serve automatically and earnings accrue to your ledger.
Create a campaign
Set your budget, destination URL, and the content categories you want to reach.
Upload your creative
Submit your image creative for review. Destination pages are validated automatically before anything serves.
Reach relevant content
Your ad enters the marketplace and serves against pages that match your targeting — no audience profiling involved.
The auction
A real second-price auction.
Ranked on bid and relevance
Pricing is a quality-adjusted second-price auction, so the winner never pays more than one increment above what it actually took to win — not its max bid.
- Advertiser A$4.20Wins
- Advertiser B$3.90
- Advertiser C$3.10
Max bids shown. The price is set by the runner-up (or the publisher's floor) and never exceeds the winner's own bid.
The split
80% of every dollar goes to the publisher.
Revenue share, fees and settlement rules are published. Not buried.
Publishers keep 80%
80% of every dollar spent against your inventory goes to you, and you never pay a fee to get it. The remaining 20% funds the marketplace — matching, safety review, and delivery infrastructure.
No black-box fee stacks
One published revenue share, one ledger. Advertisers see what they're paying for; publishers see exactly what they're owed and why.
The ledger
Every cent, on the record.
Every balance is rebuilt from the log
Every balance is a projection of an append-only event log — reconstructable, auditable, never edited in place. A billed impression doesn't change a number somewhere; it appends the entries that explain where each fraction of a cent went.
| Seq | Event | Wallet | Amount |
|---|---|---|---|
| #41826 | BillableImpression | Advertiser cash | −$0.0050 |
| #41827 | PublisherCashAccrued | Publisher | +$0.0040 |
| #41828 | LeedasFeeAccrued | Platform | +$0.0010 |
| #41829 | BillableImpression | Advertiser cash | −$0.0045 |
| #41830 | PublisherCashAccrued | Publisher | +$0.0036 |
| #41831 | LeedasFeeAccrued | Platform | +$0.0009 |
Ready to get matched?
Set up your organization in minutes. Publisher and advertiser tools live in the same dashboard.