Sub-Processors

At SendZen, we take security and compliance seriously. As part of being transparent with our customers, we maintain a list of the third-party providers ("sub-processors") that help us deliver, store, and monitor our services.

Each provider is carefully vetted for security, compliance, and reliability. We use only what is necessary — nothing more.

Infrastructure and Hosting

Amazon Web Services (AWS)

• Role: Primary cloud provider.
• Services: Lambda, API Gateway, App Runner, RDS, DynamoDB, S3, CloudWatch, Route 53, SQS, Secrets Manager, KMS.
• Region: EU-West (Ireland) by default, with region-specific deployments as needed.

Vercel

• Role: Frontend hosting and deployment platform.
• Services: Marketing site (sendzen.io) and dashboard (app.sendzen.io).

Messaging and Communication

WhatsApp Cloud API (Meta Platforms Inc.)

• Role: WhatsApp messaging delivery.
• Services: Sending and receiving WhatsApp messages, delivery and read receipts.

Amazon Simple Email Service (SES)

• Role: Transactional email delivery.
• Services: Email for sign-up verification, alerts, and system notifications.

Google Workspace

• Role: Internal and external communication.
• Services: Email communication (hi@sendzen.io), document sharing, and collaboration.

Monitoring and Analytics

AWS CloudWatch

• Role: System monitoring and alerting.
• Services: Infrastructure metrics, error tracking, and alarms.

Metabase

• Role: Product analytics.
• Services: Internal dashboards for product usage metrics.

Google Analytics

• Role: Website analytics (cookie-consent based).
• Services: Tracking site traffic and engagement patterns.

Google Search Console

• Role: Website performance analytics (cookie-consent based).
• Services: Monitoring search visibility and indexing.

Customer Support

Tawk.to

• Role: Live chat support (cookie-consent based).
• Services: Real-time customer support and query handling.

Developer Experience

Linear

• Role: Internal workflow and issue tracking.
• Services: Project management and incident response coordination.

Apidog

• Role: Documentation platform.
• Services: Hosting and managing our API documentation.

Google Gemini 2.5 Pro

• Role: AI-powered assistance.
• Services: Documentation generation, developer support features, and internal automation.

Payments

Stripe

• Role: Payment gateway.
• Services: Processing subscription payments globally.

Razorpay

• Role: Payment gateway.
• Services: Processing payments in India.

Updates to This List

We update this page whenever we add or replace a sub-processor. Customers who require notifications of such changes can subscribe to updates through their account dashboard.

Our commitment: every sub-processor we use must meet strict security and compliance requirements. Your data is only ever handled by providers we trust and continuously review.