Short links for SMS that carry your Sender ID
We are building TRAI-ready SMS links in the hi4.in/SENDERID/offer format, with bulk creation and click reports for every campaign. Join the waitlist, and use our free SMS tools today.
Why links in SMS get blocked
- Every business SMS in India goes through DLT. Your business registers its Sender ID (header) and message templates on an operator's DLT platform.
- Under TRAI's rules, the links inside your SMS must also be whitelisted on that DLT platform. Messages with links that are not whitelisted can be blocked before they reach anyone.
- Generic short links can be made by anyone, so they do not show who sent them. A link that carries your own Sender ID keeps your whitelisted links clearly yours.
A simple summary, not legal advice. Check the current rules with your DLT operator or SMS provider.
Example message from a fictional shop, showing the planned format.
From DLT template to click report
Add your Sender ID
Tell hi4.in the headers your business is registered with. We check they belong to you.
Whitelist your link prefix
Add your hi4.in/SENDERID/ links to your DLT templates, with a step-by-step guide for each DLT platform.
Create links in bulk
One link per campaign, branch or customer list, from a CSV file or the API.
Send and track
Send through your usual SMS provider and see clicks per campaign, city and device.
What you can use now, and what is coming
Check your message before you send it
Be first to send Sender-ID links
Tell us how you send SMS today. We will contact you when it is ready to try, and ask what you need first.
- Businesses sending their own DLT-registered SMS
- SMS providers and resellers who want links for their clients
- Agencies running SMS campaigns for brands
Questions about SMS links
What is DLT CTA whitelisting?
CTA means call to action — the links and call-back numbers inside your SMS. TRAI requires businesses to whitelist these on their DLT platform, and operators can block messages that carry links which are not whitelisted.
Can I use hi4.in links in my SMS today?
Yes. A hi4.in short link is a normal web address: whitelist it on your DLT portal against your template, as you would any other URL, and you will see its clicks in your dashboard. The Sender-ID format is coming soon.
Do you guarantee SMS delivery?
No. Delivery depends on your DLT registration, templates, Sender ID and the operator. No link provider can promise delivery, and we never will.
Do I need to change my SMS provider?
No. hi4.in only makes the link. You keep sending through your existing SMS provider and DLT registration.
When will Sender-ID links launch?
We are building it now and will not give a date until it works reliably. Join the waitlist and we will contact you first.
See also hi4 Links · SMS senders · Developers & API · Roadmap