Managing image optimization across multiple client websites requires a streamlined approach that maintains security while delivering consistent results. ShortPixel Image Optimizer offers two essential features designed specifically for agencies: domain association and API key aliases.
Associate Your Client Domains #
The first step in managing multiple client websites is registering their domains in your ShortPixel account. Navigate to the Associate Domains page in your ShortPixel Dashboard and add each client’s domain.
This association serves several purposes:
- It consolidates all client websites under your agency’s account
- It ensures CDN access if they enable the CDN delivery method in the plugin settings
- It provides centralized monitoring and reporting for all domains

Use API Key Aliases for Enhanced Security #
Rather than sharing your primary API key with clients, the API Key Alias feature provides a more secure alternative. Access this functionality through the API Keys page in your dashboard.
Why API key aliases matter:
When you generate an alias for each client website, you maintain complete control over access to your agency’s account. Clients can use the alias key to optimize their images without ever seeing your primary API key. This separation offers significant advantages:
Security: Your master API key remains confidential, protecting your account from unauthorized access or misuse.
Flexibility: Each client receives their own unique alias, making it simple to track usage and identify which sites are consuming your optimization credits.
Control: When a client relationship ends or you need to revoke access for any reason, simply remove the specific alias. The client’s website will immediately lose access to your ShortPixel account without affecting your other clients or requiring you to regenerate your primary API key.

Best Practices for Agency Management #
Create a new API key alias for each client website rather than reusing aliases across multiple domains. This approach provides granular control and makes it easier to manage your client portfolio as it grows.
Document which alias corresponds to each client in your internal systems. This record-keeping ensures smooth account management when you need to modify or remove access.
Monitor your credit usage regularly through the ShortPixel Dashboard to understand optimization patterns across your client base and plan your subscription accordingly.
By combining domain association with API key aliases, you establish a professional, secure infrastructure for managing image optimization across all your agency’s client websites.