SMS Verification
Intelligent form security via SMS or automated call in 4 languages. Spam protection and secure code confirmation for your platform.
- SMS & call verification in one system
- Effective spam and bot protection for your form
- 4 languages: DE, FR, IT, EN – suitable across Switzerland
- Integration into existing websites & shops
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100% free & non-binding
What does an SMS interface bring to your website?
As a PHP fullstack web developer from Switzerland, I help you extend your website with a reliable and modern SMS integration.
User verification
Secure confirmation of registrations and logins.
Notifications
Time-critical updates directly to the mobile phone.
2-Factor auth
Additional security layer for sensitive areas.
Spam protection
Effective protection against automated bot registrations.
Verification methods
SMS verification
The user receives a 6-digit code via SMS which they must enter in the form.
- Fast and reliable
- High delivery rate
- Available worldwide
Call verification
Automated call with voice announcement of the verification code in 4 languages.
- German, French, Italian, English
- Alternative to SMS
- Suitable for all mobile phones
Use cases
How does SMS integration work technically?
Behind an SMS integration there is more than a simple API call. I take care of the entire technical implementation – from gateway selection to secure transmission.
SMS gateways such as Twilio, Messagebird (now Bird) or Swiss providers like SMSAPI.ch provide a REST API through which SMS messages are sent programmatically. I integrate these APIs into your website and handle all aspects: authentication via API keys, secure transmission, error handling and logging.
For incoming SMS or status updates (delivery confirmations), webhooks can be set up: your server automatically receives a notification as soon as an SMS has been delivered or the user replies.
For two-factor authentication (2FA), your system generates a one-time code (OTP), sends it via SMS and validates the user's input. I implement time-based OTPs (TOTP) with configurable validity periods and rate limiting to prevent abuse.
I help you choose the SMS provider: for Swiss numbers and GDPR-compliant processing I often recommend Swiss or European providers. Twilio is ideal for international projects.
Typical SMS use cases
SMS is reliable, immediate and reaches almost every user – even without a smartphone app.
Two-factor authentication
One-time codes via SMS protect sensitive areas such as admin logins, payment processes or customer account changes.
Order confirmations
After purchase, customers immediately receive an SMS with order number and status link – without having to open their email inbox.
Appointment reminders
Automatic SMS reminders shortly before an appointment reduce no-shows and are ideal for practices, salons or service providers.
Password reset
Secure password reset via SMS code – without the risk of reset links ending up in spam folders.
Marketing messages
Targeted SMS campaigns with high open rates – ideal for time-sensitive offers or events (with GDPR-compliant opt-in).