Domain Verification

Why It Matters

For developers and site operators using PixQR, domain verification is essential to uphold the integrity and security of QR code-based systems. Without it, any user could potentially generate QR codes pointing to malicious domains, undermining the trust that users place in the platform.

From a production standpoint, domain verification helps prevent fraud, protects brand reputation, and ensures compliance with security standards. It also enables better analytics and scan tracking by ensuring that all QR code redirects originate from known and verified sources.

How It Works

Domain verification in PixQR typically involves a multi-step process to validate that a domain is owned by the user or organization requesting to use it in QR codes. The process includes DNS checks, HTTP-based validation, and sometimes manual review.

• Initial domain ownership confirmation through DNS records or HTTP file placement.
• Validation token or challenge is placed on the domain to prove control.
• Automated checks are performed to ensure the domain is accessible and properly configured.
• Verification status is stored in the PixQR platform and linked to the user's account.
• Once verified, the domain can be used in QR code generation or dynamic redirect configurations.

Quick Reference

Basic Example

PixQR Example QR

This QR links directly to this glossary page, so printed notes, onboarding docs, and support material can bring scanners back to the current reference.

/glossary/qr-code-security/qr-code-security-domain-verification

This example demonstrates how a domain might be verified using a token placed in a specific location.

PUT /api/v1/domains/example.com/verify
{
  "token": "abc123xyz"
}
// Token must be accessible at: http://example.com/.well-known/pixqr-verification.txt

The example shows a request to verify a domain using a token. The token must be accessible via HTTP at a predefined path to confirm ownership.

Production Example

In a production environment, domain verification is integrated into the QR code creation workflow to ensure that all dynamic redirects are safe and authorized.

POST /api/v1/qr-codes
{
  "url": "https://example.com/redirect",
  "domain": "example.com",
  "verify_domain": true
}
// Response:
{
  "qr_code_id": "qr_1234567890",
  "status": "verified",
  "redirect_url": "https://example.com/redirect"
}

This version includes domain verification as part of the QR code creation process. The platform checks if the domain is verified before allowing the QR code to be generated, ensuring that only trusted domains are used in redirects.

Common Mistakes

• Not placing the verification token in the correct location, causing verification to fail.
• Using unverified domains in QR code generation, leading to potential security issues.
• Ignoring the verification status in API calls, resulting in invalid redirects.
• Not re-verifying domains after expiry, causing QR codes to stop working.
• Overlooking the requirement for HTTP access to verification files, especially in environments with strict firewalls or CDN configurations.

Security And Production Notes

• Always verify that domain tokens are accessible via HTTP to ensure successful verification.
• Implement automated re-verification processes to maintain domain trust over time.
• Use secure HTTPS endpoints for all domain verification requests to prevent interception.
• Log verification attempts and failures for audit and troubleshooting purposes.
• Ensure that only authorized users can initiate domain verification to prevent unauthorized domain usage.

Related Concepts

Domain verification is closely tied to several other concepts in QR code security and platform management. These include:

• Dynamic Redirects: The ability to change where a QR code points after creation, which requires verified domains to be safe.
• Scan Analytics: Verified domains ensure that tracking data is accurate and not skewed by fraudulent redirects.
• Brand Protection: Verified domains help maintain brand integrity by preventing unauthorized use of domain names.
• API Access Control: Domain verification is often a prerequisite for API access to advanced QR code features.
• Trust and Reputation: Verified domains contribute to a platform's overall trustworthiness, especially in enterprise environments.

Further Reading

• MDN Web Docs
• WHATWG HTML Standard