Practical website advertising guides
Plan, price and sell direct advertising with confidence.
Detailed, plain-English guidance for publishers creating ad inventory and advertisers buying it directly—from pricing and banner formats to approval and reporting.
In-depth guides
Build the offer before you publish it.
These standalone guides answer the decisions that shape a direct advertising package. Each includes practical checks and links to the relevant D14 workflow.
How to sell advertising space on your website
Turn a real page position into a clear package, verify ownership with the snippet and prepare for buyer approval.
For publishers · 7 minHow to price website advertising
Define the commercial unit, account for exclusivity and costs, and arrive at a price you can explain.
For both sides · 8 minBanner ad sizes and modern file formats
Choose exact placement dimensions and prepare GIF, PNG, JPEG, WebP, AVIF or safe SVG creative.
For publishers · 7 minRotating versus exclusive ad slots
Decide whether one paid advertiser owns the campaign or several eligible banners share delivery.
Buyer checklist
How to compare publisher packages
Begin with relevance
Visit the website and read enough of it to understand the subject, editorial tone and likely visitor intent. A live D14 placement snippet confirms control of the site; it does not validate audience size or suitability for your campaign.
Read the full placement offer
Compare where the advert appears, which format is accepted, the package quantity or duration, creative requirements and publisher-set price. A cheaper placement is not automatically better if its context or format does not suit the message.
Shortlist against one brief
- Define the audience and action you want before browsing.
- Check that your asset can meet each package’s specifications.
- Use complementary websites when building a multi-site campaign.
- Judge delivery metrics separately from downstream conversions.
D14 does not guarantee clicks, conversions or return on spend. Campaign outcomes depend on the audience, placement, creative, destination and offer.
Publisher checklist
Create a package buyers can understand
Name the placement precisely
Describe the page area or inventory being sold in language a buyer can picture. State the accepted format and the dimensions, copy limits or other asset requirements the advertiser must follow.
Define the commercial unit
Make clear whether the buyer is purchasing a quantity, a date-based run or another configured package. Set a price you are prepared to honour, allowing for your own provider fees, taxes and D14’s separate 7% seller invoice.
Set expectations before approval
- Explain what the package includes and excludes.
- Keep creative rules specific enough to review consistently.
- Pause offers you cannot currently fulfil.
- Review the advertiser’s destination as well as the visible asset.
The D14 placement snippet verifies that you control the website when it loads. Do not describe that check as independent validation of traffic, audience demographics or performance.
Creative checklist
Prepare creative for publisher approval
Work backwards from the placement
Use the dimensions, format and copy limits shown in the selected package. When a campaign includes several placements, prepare a correct asset for each one instead of relying on a single design to fit every context.
Keep the promise and destination aligned
The message on the advert should match the page it links to. Use a working HTTPS destination, avoid misleading urgency and make the advertiser identity understandable to the visitor.
Check before submitting
- Proofread visible copy and test the destination.
- Confirm the asset is legible at its displayed size.
- Follow the publisher’s package rules and D14 advertising policy.
- Allow time for the publisher to review the submission.
Publisher approval means the creative was accepted for that placement. It is not an endorsement by D14 and does not guarantee performance.
Reporting checklist
Understand campaign delivery reporting
Follow the delivery sequence
Served means the delivery service selected and returned the advert. Rendered means the browser drew it. Viewable means at least half of the placement remained visible for one second while the tab was active.
Use clicks as a directional signal
A click means the visitor followed the tracked destination link. It does not show whether that visitor later enquired, registered or purchased, because D14 does not provide downstream conversion attribution.
Keep invalid events separate
Events identified as ineligible are recorded as invalid instead of being silently included with eligible delivery. Compare the event types together when discussing campaign progress with the other party.
Delivery data explains what happened around the advert placement. It should not be presented as proof of revenue, conversions or return on advertising spend.