Quick Navigation

• Introduction
• What Is a Google Performance Max Campaign?
• Why Assets Matter in Performance Max
• Core Asset Types You’ll Need
• Performance Max Asset Specifications
• Best Practices for High-Performing Assets
• Asset Group Structuring Tips
• Monitoring & Optimising Asset Performance
• FAQs
• Conclusion

Introduction

Google Performance Max campaigns have revolutionised the digital advertising landscape by automating ad delivery across Google’s entire network. The quality and variety of assets you provide directly impact your campaign success, making them arguably the most crucial element of your Performance Max strategy. This comprehensive guide is designed for marketers, eCommerce businesses, and agencies looking to maximise their Performance Max campaigns with optimised creative assets in 2025.

What Is a Google Performance Max Campaign?

Performance Max is Google’s AI-driven campaign type that delivers ads across the entire Google ecosystem from a single campaign. Unlike traditional campaign types that target specific channels, Performance Max uses machine learning to find the best placements for your ads across:

• Google Search Network
• Google Display Network
• YouTube
• Gmail
• Google Discover
• Google Maps

This all-in-one approach simplifies campaign management while expanding reach, but it relies heavily on diverse, high-quality assets to succeed.

Why Assets Matter in Performance Max

Google’s algorithm analyses and combines your assets to create optimised ads for each channel and user. The quality, relevance, and variety of these assets directly influence:

• Ad strength scores: Better assets lead to higher ad strength, which improves visibility
• Conversion rates: Compelling creative drives more qualified actions
• Campaign reach: More asset variations allow Google to test and optimise for different audiences
• Cost efficiency: High-performing assets reduce your cost per acquisition

Without sufficient high-quality assets, Performance Max campaigns can’t reach their full potential.

Core Asset Types You’ll Need

Text Assets

• Headlines (Short): Short, punchy statements that grab attention (up to 30 characters). These are the workhorses of your text assets, appearing across multiple placements and often determining whether a user engages with your ad. Aim to create a full set of 15 headlines to give Google’s algorithm maximum flexibility.
• Headlines (Long): Extended headlines that provide more detail (up to 90 characters). These longer headlines give you space to tell more of your story and are particularly effective in Display and Discovery placements. Creating 5 distinct long headlines ensures adequate variety for testing.
• Descriptions: Compelling copy that explains your value proposition (up to 90 characters). Your descriptions should expand on your headlines, providing additional details about benefits, features, or offers. The ideal campaign includes 5 unique descriptions that approach your value proposition from different angles.
• Business name: Your brand as it should appear in ads. Consistency in your business name builds recognition across multiple impressions and reinforces brand equity. Make sure this matches your website and other marketing materials exactly.
• Call-to-action text: Clear direction on what users should do next. The right CTA can significantly impact conversion rates by creating urgency and clarifying the next step. Test different CTAs to identify which drives the strongest response for your specific offering.

Image Assets

• Landscape images: Wide-format visuals (1200×628 px) for display ads and horizontal placements. These images need to work across multiple environments including Display Network, YouTube, and Gmail. A starting campaign should include at least 5 landscape images with diverse compositions and subjects.
• Square images: Versatile format (1200×1200 px) that works in multiple placements. Square images are particularly important for social-style placements in Discover and Display. Include 5 square images with a mix of product-focused and lifestyle content for comprehensive coverage.
• Portrait images: Tall-format visuals (960×1200 px) optimised for mobile placements. As mobile continues to dominate user time, these portrait-oriented assets become increasingly important for engagement. Create 5 portrait images that maintain clear visibility of key elements even on small screens.
• Logos: Brand identifiers in square (128×128 px minimum) and landscape (512×128 px minimum) formats. Your logos create instant brand recognition across all campaign placements. Include at least 2 square and 2 landscape logo variations to ensure proper rendering across all environments.

Video Assets

• YouTube videos: Motion creative for video placements, ideally in multiple aspect ratios (16:9, 1:1, 9:16). Video assets dramatically increase engagement compared to static images alone, making them essential for modern campaigns. Create at least 3 videos (landscape, square, and portrait) to maximise potential placements.
• Auto-created videos: Generated from your images and text as a fallback option. While Google can create videos automatically, these typically underperform compared to custom-created content. Invest in at least basic custom video creation to ensure quality representation of your brand.

Audience Signals

• Custom segments: Groups defined by shared characteristics or behaviours. These signals help Google understand who your ideal customers are, improving targeting precision from the start. Build custom segments based on your most valuable customer profiles to accelerate campaign learning.
• First-party data: Your own customer lists and website visitors provide powerful targeting signals. This proprietary data is one of your most valuable assets, as it represents actual proven interest in your offerings. Regularly update your first-party data to maintain relevance and performance.
• Interest and behaviour signals: Intent markers that help Google find your audience. These broader signals expand your reach beyond known customers to similar audiences who share key characteristics. Layer multiple signals together to create more precise targeting parameters.

Performance Max Asset Specifications

Recommended Starting Asset Quantities:

• 15 short headlines (30 char)
• 5 long headlines (90 char)
• 5 descriptions (90 char)
• 5 landscape images
• 5 square images
• 5 portrait images
• 2 square logos
• 2 landscape logos
• 1 landscape video (16:9)
• 1 square video (1:1)
• 1 portrait video (9:16)

Best Practices for High-Performing Assets
Text Assets

Use emotion-driven language: Connect with users on a personal level
Include specific benefits: Answer “what’s in it for me?” clearly
Incorporate keywords naturally: Help Google understand relevance without stuffing
Create variety in messaging: Test different angles and value propositions
Refresh regularly: Update copy quarterly or when performance declines

Example Headlines Set:
Short Headlines (30 char max):
1. “50% Off Premium Cookware Today”
2. “Free Shipping on Orders Over $50”
3. “Professional-Grade Kitchen Tools”
4. “New Collection Just Launched”
5. “Top-Rated by Master Chefs”
6. “Buy Now, Pay Later Available”
7. “Lifetime Warranty Included”
8. “Handcrafted in Germany”
9. “Exclusive Online Discounts”
10. “Eco-Friendly Materials”
11. “Limited Edition Colours”
12. “Revolutionise Your Cooking”
13. “Join 10,000+ Happy Customers”
14. “Safe for All Cooktops”
15. “In Stock & Ready to Ship”

Long Headlines (90 char max):
1. “Transform Your Kitchen With Professional-Grade Cookware That Lasts a Lifetime”
2. “Experience The Joy Of Cooking With Tools Designed By World-Class Chefs”
3. “Our Premium Cookware Collection Combines German Engineering With Modern Design”
4. “Create Restaurant-Quality Meals At Home With Our Award-Winning Kitchen Tools”
5. “Upgrade Your Culinary Experience With Cookware That’s Built To Last Generations”

Descriptions (90 char max):
1. “Handcrafted German engineering meets modern design. Free delivery until Sunday.”
2. “Save 50% on our bestselling collection. Used by professional chefs worldwide.”
3. “Eco-friendly materials, lifetime warranty, and easy payment plans available.”
4. “Transform your cooking with professional-grade tools. Free cookbook included.”
5. “Join over 10,000 satisfied customers. Try risk-free with 60-day returns.”

Image Assets

• Show products in use: Demonstrate practical applications rather than isolated products
• Feature diverse people: Represent your actual customer base authentically
• Maintain brand consistency: Use cohesive visual language across all images
• Avoid text overlays: Let the image communicate visually, save text for headlines
• Use high-contrast designs: Ensure visibility across different devices and placements
• Test variations: Create multiple versions with different focal points and compositions

Example Image Set for a Cookware Brand:

• Landscape 1: Complete cookware set arranged on a kitchen counter
• Landscape 2: Family cooking together using the products
• Landscape 3: Close-up of food being prepared in the cookware
• Landscape 4: Chef demonstrating product features
• Landscape 5: Lifestyle shot of elegant dining setup with the cookware visible
• Square 1: Single hero product on clean background
• Square 2: Overhead view of food preparation with multiple products
• Square 3: Person using product with visible satisfaction
• Square 4: Product detail highlighting unique feature
• Square 5: Before/after cooking results comparison
• Portrait 1: Person holding product vertically showing scale
• Portrait 2: Stacked cookware showing full product line
• Portrait 3: Tall shot of cooking process in action
• Portrait 4: Vertical product display in kitchen environment
• Portrait 5: Person scrolling on mobile device with product in shopping cart

Video Assets

Front-load key messaging: Put your most important information in the first 5 seconds
Include clear branding: Make your brand identifiable within the first 3 seconds
Design for silent viewing: Most videos play without sound, so use visual storytelling
Add captions: Make your message accessible regardless of viewing environment
Keep it concise: 10-15 seconds is ideal for most Performance Max placements
Create format variations: When possible, provide both horizontal and vertical versions

Example Video Storyboard for 15-second spot:
0-3 seconds: Logo appears with tagline “Professional Cookware for Every Kitchen”
3-6 seconds: Product demonstration showing non-stick properties
6-9 seconds: Quick comparison with competitor product
9-12 seconds: Customer testimonial (with captions)
12-15 seconds: Call to action with special offer and logo

Audience Signals

Layer multiple signals: Combine demographic, interest, and intent signals
Use first-party data strategically: Create lookalike audiences from your best customers
Segment by purchase intent: Differentiate between top and bottom funnel signals
Refine based on performance: Analyse which signals drive the best results

Example Audience Signal Structure:
Primary Signal: Custom segment of previous purchasers
Secondary Signal: In-market for kitchen products
Tertiary Signal: Interest in cooking and home improvements
Location Signal: Major metropolitan areas prioritised
Demographic Layer: Income brackets aligned with premium product pricing

Asset Group Structuring Tips
The way you organise your assets within Performance Max can significantly impact performance:

Align asset groups with product categories: Create dedicated groups for each major product line
Maintain message consistency: Ensure all assets within a group tell a cohesive story
Balance specificity with coverage: Groups should be narrow enough to be relevant but broad enough to capture volume
Use audience signals strategically: Assign the most relevant audience signals to each asset group
Consider customer journey: Create separate asset groups for awareness vs. conversion goals

Example Asset Group Structure for Kitchenware Business:
Asset Group 1: Premium Cookware Collection
– Audience: High-income, cooking enthusiasts, previous visitors
– Assets: Focus on quality, craftsmanship, lifetime value

Asset Group 2: Starter Kitchen Sets
– Audience: First-home buyers, wedding registries, budget-conscious
– Assets: Focus on value, essentials, bundle savings

Asset Group 3: Professional Chef Tools
– Audience: Culinary professionals, cooking school students
– Assets: Focus on technical specifications, professional endorsements

Asset Group 4: Seasonal Promotions
– Audience: Gift-givers, previous customers
– Assets: Focus on limited-time offers, gift ideas

Monitoring & Optimising Asset Performance

Google provides several tools to evaluate and improve your assets:

• Asset reporting in Google Ads: Review performance metrics for individual assets
• Asset ratings: Pay attention to “Best,” “Good,” and “Low” ratings from Google
• A/B testing: Systematically test variations to identify winning creative
• Recommendations: Implement Google’s automated suggestions for asset improvements

Best practices for ongoing optimisation:

• Replace low-performing assets monthly: Swap out anything rated “Low”
• Introduce new creative quarterly: Keep your campaigns fresh with regular updates
• Analyse cross-channel performance: Some assets may work better in specific channels
• Monitor competitive landscape: Stay ahead of industry trends and competitor approaches

Conclusion

The success of your Performance Max campaigns hinges on the quality, variety, and strategic implementation of your assets. By following the specifications and best practices outlined in this guide, you’ll provide Google’s algorithm with the creative components it needs to deliver compelling ads across its network.

Take these next steps to elevate your Performance Max campaigns:

1. Audit your current asset library against these specifications
2. Create any missing formats or variations
3. Implement a regular schedule for asset performance review
4. Develop a testing roadmap to continuously improve creative performance

Remember, in the increasingly automated world of digital advertising, your creative assets remain one of the few differentiators fully under your control. Invest in them accordingly.