Ad format

Medium Rectangle 300×250

Medium Rectangle 300x250 display ads - the most versatile and widely supported ad format with excellent performance across all devices.

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publisher-site.com/article

MREC · 300×250×

Inline with the text

The 300×250 rectangle sits inside the content flow, the workhorse unit that fits anywhere and clears display demand from every channel.

Interactive Demo

• Scales perfectly on all devices

• High visibility placement

• Excellent user experience

Pro Tip

Medium Rectangle ads perform best when placed above the fold or within the first screen of content. Consider using rich media formats for higher engagement.

Typical Performance Ranges

Illustrative industry ranges for this format. Actual results vary by campaign, creative, and placement.

Design Guidelines

• Use high-contrast colors for visibility
• Keep text readable at small sizes
• Include clear call-to-action buttons
• Optimize for mobile viewing
• Test different creative variations

Performance Tips

• Place above the fold when possible
• Use lazy loading for better page speed
• Implement viewability tracking
• A/B test different placements
• Monitor frequency capping

Start Your Medium Rectangle Campaign

Launch high-performing 300×250 display ads with our advanced targeting and optimization tools.

Want this working for your business?

Talk to the IMC team or see the platform live in a personalized walkthrough.

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