Domain filtering

What Is Domain Filtering?

Domain filtering is a security and audience management feature built into the ON24 Intelligent Engagement Platform. It enables webinar organizers to define which email domains are permitted—or restricted—during the registration process.

For example, marketers can use domain filtering to exclude personal email addresses (like Gmail or Yahoo) when hosting business-only events or to restrict access to competitive organizations. Conversely, it can also be configured to whitelist specific partner or customer domains, ensuring only invited participants gain access.

By managing event participation through domain filtering, marketers maintain data security, brand integrity, and targeted audience alignment, especially in account-based and customer-exclusive campaigns.

Why It Matters

• Event security: Prevent unauthorized or unintended registrants from accessing sensitive information.
  
• Audience qualification: Ensure only approved organizations or partners participate.
• Data protection: Strengthen compliance with privacy and data-sharing policies.
  

How It’s Used

ON24’s domain filtering feature is widely used by marketing, sales, and enablement teams to maintain the integrity of digital experiences. Practical applications include:

• Private webinars: Restrict registration to employees or customers from approved companies.
  
• Partner enablement sessions: Limit access to verified partner domains only.
  
• Account-based marketing (ABM): Focus events on pre-defined target accounts.
  
• Internal communications: Keep corporate town halls or training events within the organization.
  
• Lead quality management: Prevent unqualified or spam registrations that skew reporting metrics.
  

Using domain filtering in conjunction with ON24’s webinar capabilities ensures that every attendee aligns with the event’s business objectives.

Key Benefits

• Precision audience control: Manage who can register and attend events with domain-level accuracy.
  
• Enhanced security: Protect proprietary or confidential information.
  
• Improved data quality: Keep engagement and analytics clean by excluding irrelevant registrants.
  
• Seamless setup: Configure allowed or blocked domains directly in the ON24 event setup interface.
  
• Compliance-ready: Support organizational data privacy and governance policies.
  

To learn how domain filtering contributes to secure and data-driven engagement, explore ON24’s digital engagement best practices and Propel Your Pipeline.

Frequently Asked Questions

1. What is ON24’s domain filtering feature used for?
   
   • Domain filtering is used to block or allow registrants from specific email domains to ensure only the right audiences can register and attend.
2. Can I restrict access to competitors?
   
   • Yes. You can easily block competitor domains to keep proprietary or confidential event content secure.
3. Can I whitelist domains for trusted partners or customers?
   
   • Absolutely. ON24 allows users to create a whitelist to ensure that specific partners or client organizations can always access your webinars.
4. Does domain filtering apply to on-demand webinars too?
   
   • Yes. Domain restrictions can be configured for both live and on-demand webinar experiences.
5. How do I activate domain filtering in ON24?
   
   • It can be set during event setup within the ON24 event configuration tools. Detailed instructions are available via ON24 Support.
     
     

Editorial & Methodology Notice

This content was developed by the ON24 Editorial Team using verified benchmark data, product documentation, and secure engagement best practices aligned with EEAT standards.
Updated: October 2025