Set the offer and price
Choose impression- or duration-based packages, required banner sizes, public terms and the price shown to advertisers.
For independent publishers
Sell website advertising on your terms.
Turn available placements into publisher-set packages. Choose what you offer, set the price, approve the creative and receive advertiser payments directly.
Your commercial model
You define what advertisers can buy.
D14 supplies the sales, delivery and reporting infrastructure. The package and editorial decisions remain yours.
Sell across several sites
Group placements from a portfolio into one campaign with a shared delivery pool and site-level attribution—or keep a campaign tied to one exact slot.
Review every submission
Approve, reject, request changes or suspend creative according to your own advertising rules.
Choose how the slot is sold
Exclusive inventory and rotation are separate choices.
The paid-inventory setting controls how many advertiser orders can share the campaign. House-ad delivery is configured separately, so your own creative can fill unsold space without changing what buyers purchase.
One paid advert at a time
The first completed payment closes the campaign to new checkout. Opening or abandoning checkout does not reserve the slot.
Accept multiple advertisers
Eligible paid banners rotate in the same placement using package weights, allowing several active orders to share delivery.
Fill the space between sales
Keep a house advert as fallback when no paid creative is eligible, or choose to include it in the configured rotation.
Install once
Change campaigns without changing site code.
A small asynchronous snippet identifies the placement and verifies the website when it first loads. Networks and campaigns are managed in D14, so you can reorganise what is sold without replacing that snippet on every page.
Create your first placementSite A
Site B
Site C
D14Network
AdvertiserOne package
From account to first sale
A setup built around real inventory.
Create a placement
Name the advertising position and choose the formats it accepts. D14 generates its unique snippet.
Paste the snippet
Add it to your page. When it first loads, D14 recognises the hostname and verifies the website automatically.
Build a network
Combine placements from one or several websites into a reusable group.
Publish a campaign
Add packages, prices and rules, connect a payment account and opt into the marketplace.
Approve and report
Review incoming adverts and follow delivery by campaign, website and placement.
Portfolio control
Choose how each website reaches buyers.
A ten-site publisher does not have to make the same marketplace decision ten times. Set the account preference, then override marketplace visibility for an individual website whenever that property should be public or private.
Show or hide each site
Use the Websites tab to decide whether a verified property appears in the public marketplace, independently of the other sites on your account.
Embed only your available slots
Place the publisher-specific marketplace embed on your own site to display your active offers, with each card linked to its package page.
Accept modern banner formats
Image campaigns support GIF, PNG, JPEG, WebP, AVIF and safely inspected SVG files. The package requests only the dimensions used by its placements.
Direct payments
The buyer pays your account.
Connect your own Stripe or PayPal account. The package price is processed in that publisher account; D14 creates a separate invoice for 7% of the completed sale.
A £250 package sale
Payment to publisher£250
D14 invoice£17.50
Separate provider charges, taxes, refunds and chargebacks may affect the publisher’s final proceeds.
Publisher questions
What to know before listing a placement.
How does D14 verify that I control a website?
Create the placement and paste its generated snippet into the site. The first live request identifies the hostname and confirms control; there is no separate DNS or file-upload step.
Can I keep some of my websites out of the marketplace?
Yes. Marketplace visibility can be controlled per website, so one property can be listed while another remains hidden.
Can several advertisers buy the same placement?
Yes, when its campaign uses weighted rotation. Choose single-sale inventory when only one paid advertiser should hold the campaign at a time.
What appears before an advertiser is approved?
Your configured fallback applies. That can be a house advert, a collapsed slot, an empty space or custom fallback HTML. A paid advert begins eligible delivery only after the required publisher approval.
Which image files can advertisers upload?
GIF, PNG, JPEG, WebP, AVIF and SVG are supported. Files must match the exact dimensions requested by the selected package, and SVG content is inspected before storage.
Planning the offer? Read the guides to selling advertising space, pricing website advertising and banner sizes and file formats.