# Check ID SA
> Free South African ID number checker and API on checkid.co.za. Structural validation of format, date encoding, citizenship indicator, and Luhn checksum with zero ID storage and POPIA-first design. Not a Home Affairs database lookup, credit check, or biometric identity product.

Canonical site: https://checkid.co.za (apex host; www redirects to non-www).
Primary product: in-memory SA ID validation for individuals and businesses, plus REST API access on paid plans.

## Core
- [Homepage validator](https://checkid.co.za/): Unlimited free single SA ID checks on the web with no sign-up
- [Pricing](https://checkid.co.za/pricing): Free, API Starter, Professional, and Business plans
- [Business overview](https://checkid.co.za/business): Team, API, bulk, and mobile scanning plans for organisations
- [FAQs](https://checkid.co.za/frequently-asked-questions): Common questions about validation boundaries, privacy, and plans
- [About CheckID](https://checkid.co.za/about): Who operates CheckID, what it does and does not do, privacy, and contact
- [Contact](https://checkid.co.za/contact): Support and sales contact

## Developers
- [API documentation](https://checkid.co.za/api-documentation/developers-guide): REST API reference and examples
- [SA ID validator and test cases](https://checkid.co.za/sa-id-validator-test-cases): Synthetic fixtures and client-side structural validator for developers
- [5-minute API setup](https://checkid.co.za/articles/5-minute-id-verification-setup): Quick start for integrating SA ID validation
- [SA ID validator API article](https://checkid.co.za/articles/sa-id-validator-api): API product overview for developers
- [Bulk ID validation API](https://checkid.co.za/articles/bulk-id-validation-api-south-africa): Bulk validation guidance
- [Validate a South African ID in JavaScript](https://checkid.co.za/articles/validate-south-african-id-javascript): Local algorithm plus CheckID API
- [Validate a South African ID in C#](https://checkid.co.za/articles/validate-south-african-id-csharp): .NET structural validation tutorial
- [Validate a South African ID in PHP](https://checkid.co.za/articles/validate-south-african-id-php): PHP structural validation tutorial
- [Validate a South African ID in Python](https://checkid.co.za/articles/validate-south-african-id-python): Python structural validation tutorial

## Guides
- [Free downloadable guides](https://checkid.co.za/free-guides): SA ID quick reference and FICA/POPIA checklist
- [SA ID numbers explained](https://checkid.co.za/articles/sa-id-number-explained): How the 13-digit ID number is structured
- [South African ID number structure](https://checkid.co.za/articles/south-african-id-number-structure): Segment-by-segment breakdown
- [SA ID checksum explained](https://checkid.co.za/articles/sa-id-checksum-explained): Luhn checksum used in SA ID numbers
- [POPIA ID validation](https://checkid.co.za/articles/popia-id-validation): Privacy-first validation practices
- [Articles hub](https://checkid.co.za/articles): All public articles

## Industry use cases
- [Property management](https://checkid.co.za/property-management/bulk-id-verification): Bulk tenant and buyer ID checks
- [Healthcare](https://checkid.co.za/healthcare/popia-id-verification): POPIA-aware patient ID validation
- [HR and recruitment](https://checkid.co.za/hr-recruitment/id-verification): Candidate ID checks at scale
- [Financial services](https://checkid.co.za/financial-services/id-verification): Onboarding and FICA-ready structural checks
- [Betting and gaming](https://checkid.co.za/betting-gaming/id-age-verification): Age verification from SA ID structure
- [ID verification overview](https://checkid.co.za/id-verification): General industry landing page
- [Bulk ID validation](https://checkid.co.za/bulk-id-validation): Compare free single checks, API Starter, and team bulk workflows

## Blog
- [Blog](https://checkid.co.za/blog): Product and company updates
- [Check ID SA launch](https://checkid.co.za/blog/check-id-sa-launches-in-2017): Origin story

## Policies
- [Privacy policy](https://checkid.co.za/privacy-policy): POPIA-aligned privacy practices
- [Terms of service](https://checkid.co.za/tos): Product terms
- [Fair usage policy](https://checkid.co.za/fair-usage): Plan fair-usage limits

## Optional
- [Useful resources](https://checkid.co.za/articles/links): External and internal reference links
- [Verify physical ID document](https://checkid.co.za/articles/verify-id-document): Guidance on physical document checks vs structural validation
- [Smart card security features](https://checkid.co.za/articles/security-features-of-id-card): SA ID card security features overview