# GoValid Documentation > GoValid is a comprehensive QR code authentication and verification platform built by PT Digital Engineering Indonesia. It enables secure QR code generation, document authentication, supply chain traceability, and digital verification across web, mobile, and third-party integrations. ## Getting Started - [GoValid Overview](https://docs.govalid.org/docs/getting-started/): Introduction to GoValid — what it is, key features, account types, and products including NexHub, C-Trace, and NexCommunity. - [Quick Start Guide](https://docs.govalid.org/docs/getting-started/quick-start): Step-by-step guide to creating your first QR code, configuring your profile, and linking a document template. - [Security Levels](https://docs.govalid.org/docs/getting-started/security-levels): Overview of GoValid's four security tiers — Smart, Verified, Secure, and Enterprise — with use cases and verification flows. - [Plans & Pricing](https://docs.govalid.org/docs/getting-started/plans-pricing): Free, Professional, and Enterprise plan comparison including QR limits, security features, and billing options. ## User Guides - [QR Codes](https://docs.govalid.org/docs/user-guides/qr-codes/): How to generate, manage, and analyze QR codes from the web dashboard, WordPress plugin, Office Add-ins, and API. Includes scan analytics and fraud detection. - [Verification Page](https://docs.govalid.org/docs/user-guides/verification-page/): Customizing the public verification page that end-users see when scanning a GoValid QR code. - [Anti-Counterfeit](https://docs.govalid.org/docs/user-guides/anti-counterfeit/): Setting up detection profiles, assignment rules, and monitoring the violations dashboard for counterfeit detection. - [C-Trace](https://docs.govalid.org/docs/user-guides/c-trace/): Supply chain traceability module — tracking products from origin to destination using QR codes. - [Animal Traceability](https://docs.govalid.org/docs/user-guides/animal-traceability/): Registering and tracking animals using QR-tagged records for livestock and pet management. - [NexCommunity](https://docs.govalid.org/docs/user-guides/nexcommunity/): Community profile management and member interaction features. - [Account & Billing](https://docs.govalid.org/docs/user-guides/account-billing/): Managing subscription, invoices, and account settings. - [Institution/Organization Account](https://docs.govalid.org/docs/user-guides/institution-account/): Setting up and managing multi-user institution accounts with member roles and permissions. - [Badges](https://docs.govalid.org/docs/user-guides/badges/): Issuing verifiable digital badges linked to GoValid QR codes. - [Canva Layout](https://docs.govalid.org/docs/user-guides/canva-layout/): Using the Canva-style layout designer to create QR-embedded certificate and document templates. ## Integrations - [OJS Plugin](https://docs.govalid.org/docs/integrations/ojs-plugin/): Free plugin for Open Journal Systems (OJS 3.1–3.5) providing a Certificate Designer, Email Template Designer, Reference Validation (MaRS with Scopus & CrossRef), and Secure QR codes for academic journals. - [WordPress Plugin](https://docs.govalid.org/docs/integrations/wordpress-plugin/): Free WordPress plugin (WP 5.8+) for QR code generation, Gutenberg block embedding, scan analytics with cluster map, anti-counterfeit detection, custom forms, humanize links, and label layout printing. - [Office Add-ins](https://docs.govalid.org/docs/integrations/office-addins/): GoValid add-ins for Microsoft Word and Excel enabling QR code insertion and verification directly in Office documents. - [Webhooks Setup](https://docs.govalid.org/docs/integrations/webhooks-setup/): Configuring webhooks to receive real-time scan and verification events from GoValid. ## API Reference - [API Overview](https://docs.govalid.org/docs/api-reference/): Introduction to the GoValid REST API, base URL, versioning, and authentication methods. - [Authentication](https://docs.govalid.org/docs/api-reference/authentication): OAuth 2.0 + PKCE authentication flow, token management, and API key usage. - [QR Endpoints](https://docs.govalid.org/docs/api-reference/qr-endpoints): Create, read, update, and delete QR codes; generate bulk QR; retrieve scan analytics. - [Webhooks](https://docs.govalid.org/docs/api-reference/webhooks): Webhook event types, payload structure, signature verification, and retry policy. ## Security & Compliance - [Security Overview](https://docs.govalid.org/docs/security-compliance/): GoValid's security architecture, compliance posture, and data handling principles. - [ED25519 Signatures](https://docs.govalid.org/docs/security-compliance/ed25519-signatures): How GoValid uses ED25519 digital signatures to cryptographically bind QR codes to their content. - [Encryption](https://docs.govalid.org/docs/security-compliance/encryption): 256-bit AES encryption used for Secure and Enterprise QR metadata. - [2FA & Trusted Devices](https://docs.govalid.org/docs/security-compliance/2fa-trusted-devices): Two-factor authentication setup and trusted device management. - [Risk-Based Authentication](https://docs.govalid.org/docs/security-compliance/risk-based-auth): Adaptive authentication that adjusts verification requirements based on scan context and risk signals. - [Data Privacy](https://docs.govalid.org/docs/security-compliance/data-privacy): GDPR alignment, data retention policies, and user data controls. ## FAQ & Troubleshooting - [Common Issues](https://docs.govalid.org/docs/faq-troubleshooting/common-issues): Solutions to frequent problems with QR scanning, plugin connectivity, and account access. - [Error Codes](https://docs.govalid.org/docs/faq-troubleshooting/error-codes): Full list of GoValid API and platform error codes with explanations and resolution steps. - [Contact Support](https://docs.govalid.org/docs/faq-troubleshooting/contact-support): How to reach the GoValid support team via email, documentation portal, and GitHub.