Ad preview & Image formats

As we move into Specify's Phase 2, we're expanding our publisher network to bring your campaigns to more users across more touchpoints. This release focuses on giving you better tools to visualize your ads and reach audiences wherever they are.

Publisher Network Expansion

We're growing our publisher ecosystem with new partners joining the network. Collabland and Blockscout are onboarding first, with a pipeline of dapps and wallets coming next. This means your ads will reach users across more platforms and contexts—from community tools to blockchain explorers to the applications your audience uses daily.

New & Updated Image Formats

Based on publisher requests, we've introduced new ad formats to give you more placement options:

• Landscape: 640×360px (updated resolution) – Our primary display format

• Long Banner: 728×90px – Perfect for header and footer placements

• Short Banner: 320×100px – Mobile-optimized for on-the-go users

All three formats are now supported across our publisher network, giving you flexibility to optimize creative for each placement type.

Ad Creatives Guide

We've published an ad creatives guide format specifications, design best practices, and recommendations for creating high-performing ads.

Ad Preview Feature

See your ads exactly as your audience will. Our new preview tool lets you visualize how your creatives will appear across all formats and publishers—available directly in the campaign creation flow and analytics page. No more guesswork about how your ads will look in the wild.