CAA Record Generator
A CAA (Certification Authority Authorization) record is a DNS entry that specifies which Certificate Authorities are allowed to issue SSL/TLS certificates for your domain. This tool helps you generate properly formatted CAA records to control certificate issuance and prevent unauthorized SSL certificate requests. By implementing CAA records, you add an important layer of security to your domain's certificate management.
Select Certificate Authorities allowed to issue SSL
How to Use CAA Record Generator
The CAA Record Generator simplifies the process of creating DNS CAA (Certification Authority Authorization) records to control which Certificate Authorities can issue SSL certificates for your domain. Follow these steps to generate your CAA records:
- Enter Your Domain: Input the domain name you want to protect with CAA records
- Select Authorized CAs: Choose which Certificate Authorities are allowed to issue certificates for your domain from the available list
- Configure Wildcard Settings: Optionally set permissions for wildcard certificate issuance
- Add Issuewild Tags: Specify which CAs can issue wildcard certificates separately if needed
- Generate Records: Click the generate button to create your CAA DNS records
- Copy Record Data: Copy the generated records and add them to your DNS provider's control panel
- Verify Configuration: Test your CAA records using DNS lookup tools to ensure proper implementation
When to Use CAA Record Generator
CAA Record Generator is essential for organizations and individuals looking to enhance their domain security and SSL certificate management. Here are the primary use cases:
- Enterprise Security: Large organizations need to restrict certificate issuance to specific trusted CAs to prevent unauthorized SSL certificates
- Multi-CA Management: Companies using multiple Certificate Authorities can define which CAs are authorized for different purposes
- Compliance Requirements: Meet regulatory compliance standards by implementing strict certificate issuance controls
- Domain Hijacking Prevention: Protect against attackers obtaining fraudulent SSL certificates by limiting authorized CAs
- SSL Certificate Audit: Maintain an audit trail of which CAs are permitted to issue certificates for your domain
- DNS Security Enhancement: Strengthen overall DNS security posture alongside DNSSEC implementation
Protect your website with BKNS SSL — from 199,000đ/year, free installation
Technical Information About CAA Records
CAA (Certification Authority Authorization) records are DNS TXT records that specify which Certificate Authorities are authorized to issue SSL/TLS certificates for a domain. They provide an additional layer of security by preventing unauthorized certificate issuance.
CAA Record Structure
- Flags: A single byte value (typically 0) that controls record interpretation
- Tag: Defines the CAA property type (issue, issuewild, or iodef)
- Value: Contains the CA domain name or email address for reporting
CAA Tag Types
- issue: Specifies which CAs can issue standard SSL certificates for your domain
- issuewild: Controls which CAs can issue wildcard certificates (*.yourdomain.vn)
- iodef: Provides an email address or URL for reporting CAA policy violations
Implementation Benefits
- Attack Prevention: Prevents attackers from obtaining valid certificates from unauthorized CAs
- Policy Control: Gives domain owners explicit control over certificate issuance policies
- Audit Compliance: Helps meet security compliance requirements and standards