Hupspot Guide to Banner Ad Sizes and Best Practices

Learning how brands like Hubspot approach banner ad sizes can help you structure display campaigns that look professional, load fast, and attract more clicks. This guide walks you through the most common sizes, design rules, and implementation tips inspired by the original HubSpot banner ad size breakdown.

Why Banner Ad Sizes Matter in Hubspot-Style Campaigns

Using the right banner ad sizes is crucial for reach, performance, and reporting. When you follow a clear system, similar to the one described by HubSpot, you get:

• Better coverage across major ad networks.
• Faster creative production and testing.
• Cleaner analytics and easier optimization.
• Consistent branding on every placement.

Choosing ad sizes carefully lets you reuse designs, test variations, and understand which formats work best for your audience.

Core Display Banner Ad Sizes from the Hubspot Article

The source page from HubSpot on banner ad sizes highlights standard formats that appear on Google Display Network and most major publishers. Focus on these first:

Hubspot-Inspired Leaderboard Sizes

• 728 x 90 (Leaderboard)
  Appears at the top or bottom of web pages, usually above the main content. Great for brand awareness and navigation-style messaging.
• 970 x 90 (Large Leaderboard)
  Offers more space for visuals and copy while still feeling unobtrusive. Common on desktop news and blog sites.
• 970 x 250 (Billboard)
  A large, high-impact unit ideal for launches, promotions, and visually rich campaigns.

Hubspot-Style Rectangle and Medium Rectangle Sizes

• 300 x 250 (Medium Rectangle)
  One of the most used sizes on the web. Works in sidebars, within content, and at the end of articles.
• 336 x 280 (Large Rectangle)
  Similar use case to 300 x 250 but with more space for imagery and text.

Hubspot Display Skyscraper Sizes

• 160 x 600 (Wide Skyscraper)
  Vertical format that fits in sidebars and along page edges, supporting strong vertical visuals.
• 300 x 600 (Half Page)
  A tall, attention-grabbing unit that can combine image, copy, and strong calls-to-action.

Mobile Banner Ad Sizes in a Hubspot-Inspired Setup

• 320 x 50 (Mobile Leaderboard)
  Common at the top or bottom of mobile screens; keeps file size small and loads quickly.
• 320 x 100 (Large Mobile Banner)
  Offers more visibility than 320 x 50 while still preserving mobile experience.

Covering these formats gives your campaigns broad reach with a compact, efficient set of creative assets.

How to Plan a Hubspot-Like Banner Ad Size Strategy

Use a simple framework to decide which banner ad sizes to prioritize and how to deploy them.

Step 1: Map Your Inventory

1. List the ad networks and publishers you use.
2. Check which banner ad sizes each one supports.
3. Highlight the formats that repeat most often.

In many cases, you will see the same core set that HubSpot emphasizes: 728 x 90, 300 x 250, 160 x 600, and 320 x 50.

Step 2: Choose a Hubspot-Inspired Core Set

Start with a core bundle of sizes you will always produce for new campaigns:

• 300 x 250 (Medium Rectangle)
• 728 x 90 (Leaderboard)
• 160 x 600 (Wide Skyscraper)
• 320 x 50 (Mobile Leaderboard)

These formats deliver strong coverage across desktop and mobile without overwhelming your design team.

Step 3: Add High-Impact Formats

Once your core set is ready, add high-impact sizes that echo the HubSpot example for special campaigns:

• 970 x 250 (Billboard) for product launches.
• 300 x 600 (Half Page) for storytelling or feature-heavy messaging.
• 336 x 280 (Large Rectangle) for premium publisher placements.

Design Best Practices from the Hubspot Banner Ad Example

After you choose formats, apply design guidelines similar to those used in HubSpot marketing assets.

Hubspot-Inspired Visual Hierarchy

• Clear logo placement in a corner with ample padding.
• Single key message in large, legible type.
• Strong call-to-action button such as “Get the Guide” or “Start Free Trial.”

Make sure the main message is visible even at a glance and on smaller sizes.

Readable Typography and Color

• Use high-contrast color combinations for text and background.
• Limit fonts to one or two typefaces.
• Ensure font sizes remain readable on smaller mobile units.

Following these basics helps your designs feel as polished as a typical HubSpot campaign.

Brand Consistency in Hubspot-Like Campaigns

• Use a consistent color palette across all sizes.
• Align imagery style (illustrations vs. photography).
• Maintain stable button shapes and CTA language.

Even when sizes change, viewers should recognize your brand instantly.

Technical Specs and File Preparation

Before you upload creative to your ad platform, confirm these details:

• File formats: Typically JPG, PNG, or GIF. Some platforms also allow HTML5.
• File size limits: Many networks cap files around 150 KB for standard display units.
• Animation rules: If you animate, keep loop count and duration within platform guidelines.

Test each file to ensure fast loading and crisp rendering on Retina and high-density screens.

Optimizing Hubspot-Style Banner Ads for Performance

Treat your banner ad setup like an ongoing optimization program, similar to how HubSpot teams iterate on digital assets.

Set Up Variants

• Create at least two versions for each size.
• Test different headlines and calls-to-action.
• Experiment with background color and imagery.

Rotate creatives and monitor click-through rate, conversions, and viewability.

Measure and Refine

1. Review placement reports to see which banner ad sizes perform best.
2. Phase out low-performing units.
3. Scale the sizes and messages that drive conversions.

Document learnings so you can refine each new campaign faster.

Tools to Help Implement a Hubspot-Like Strategy

You can streamline your display workflow using expert support and planning templates. For example, Consultevo provides digital strategy services that can align your banner ad size choices with funnel goals, analytics, and creative production.

Apply the Hubspot Banner Ad Size Framework Today

By adopting the structured list of banner ad sizes and best practices drawn from the HubSpot article, you can build campaigns that are easier to manage, test, and scale. Start with a focused core set of sizes, maintain consistent branding across every unit, keep file weights light, and use continuous testing to refine your message. Over time, this systematic approach will improve performance across display networks and help your ads stand out on any screen.

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