To register your number for A2P messaging, your business must have a secure website that uses HTTPS. Websites using HTTP (not secure) are not accepted by carriers, The Campaign Registry (TCR), or messaging providers.
Why HTTPS Is Required
Security
HTTP sites are not encrypted and can expose data to interception or tampering.
HTTPS protects visitors and prevents spoofing or fraudulent misuse.
Brand Verification
Carriers use your website to verify that your business is legitimate.
A non-secure site is considered a risk or trust red flag.
Compliance
Secure digital properties are required to reduce spam, phishing, and abuse.
HTTPS is a baseline standard for all businesses sending A2P messages.
Deliverability
Unsecured links can be filtered or blocked by carriers.
HTTPS improves campaign approval and message delivery.
How to Confirm Your Site Is Secure
✅ Website URL begins with https://
✅ Lock icon appears in the browser address bar
If your site shows http://, work with your web host or IT provider to enable SSL before submitting registration.