> ## Documentation Index > Fetch the complete documentation index at: https://docs.h0p.co/llms.txt > Use this file to discover all available pages before exploring further. # Verify domain DNS configuration > Check domain DNS configuration and verify setup. Updates isVerified status. Returns domain with verification result and DNS configuration instructions if not verified. ## OpenAPI ````yaml https://api.h0p.co/doc post /domain/{id}/dns-check openapi: 3.0.0 info: version: 0.0.3 title: h0p API description: >- # h0p URL Shortener API A modern, feature-rich URL shortener API with advanced analytics, custom domains, QR codes, and comprehensive link management capabilities. ## Features - 🔗 **Short Link Management**: Create, update, and delete short links with custom slugs - 🌐 **Custom Domains**: Use your own domains with DNS verification and deep linking support - 📊 **Analytics**: Detailed click tracking with geolocation, device, and referrer data - 🎨 **QR Codes**: Generate customizable QR codes with branding options - 🏷️ **Organization**: Folders and tags for better link organization - 🔐 **Security**: Password protection, expiration dates, and click limits - 🎯 **Smart Rules**: Geographic, language, and device-based routing - 🪝 **Webhooks**: Real-time notifications for link events - 🔑 **API Keys**: Programmatic access with granular permissions - ⚡ **Rate Limiting**: Built-in protection against abuse ## Authentication This API supports two authentication methods: 1. **Session Authentication**: Cookie-based authentication for web applications 2. **API Key Authentication**: Header-based authentication for programmatic access See the security schemes section below for implementation details. ## Rate Limits - Free plan: 10 short links, 1 custom domain, 3 tags - Premium plan: unlimited short links, 100 custom domains, 100 tags, 100 folders, advanced features ## Support For questions, feature requests, or bug reports, please contact support@h0p.co termsOfService: https://h0p.co/terms contact: name: h0p Support email: contact@h0p.co servers: - url: https://api.h0p.co description: Production API server security: [] tags: - name: Domain description: >- Custom domain management with DNS verification, QR templates, and deep linking support - name: Short Link description: >- Create and manage short links with advanced features like smart routing, password protection, and custom QR codes - name: Folder description: >- Organize short links into folders for better management and statistics tracking - name: Tag description: Categorize and filter short links using customizable tags - name: Files description: Upload images for QR codes, meta tags, and organization branding - name: Statistics description: >- Access detailed analytics grouped by geographic, device, and traffic dimensions paths: /domain/{id}/dns-check: post: tags: - Domain summary: Verify domain DNS configuration description: >- Check domain DNS configuration and verify setup. Updates isVerified status. Returns domain with verification result and DNS configuration instructions if not verified. parameters: - schema: type: string format: uuid example: 01933eb8-541f-7000-a9f4-e4eee80ff04e description: Unique identifier in UUID v7 format required: true description: Unique identifier in UUID v7 format name: id in: path responses: '200': description: DNS verification check completed. Check isVerified field for result. content: application/json: schema: type: object properties: id: type: string format: uuid example: 01933eb8-541f-7000-a9f4-e4eee80ff04e description: Domain UUID createdAt: type: string format: date-time example: '2024-01-15T10:30:00Z' description: Creation timestamp updatedAt: type: string format: date-time example: '2024-01-16T14:20:00Z' description: Last update timestamp organizationId: type: string nullable: true format: uuid example: 01933eb8-541f-7000-a9f4-e4eee80ff04e description: Organization UUID domain: type: string example: links.example.com description: Domain name isActive: type: boolean example: true description: Whether domain is active lastCheckedAt: type: string nullable: true format: date-time example: '2024-01-15T10:35:00Z' description: Last DNS check timestamp isVerified: type: boolean example: true description: Complete verification status txtRecord: type: string nullable: true example: _vercel=1234567890abcdef description: TXT record value for DNS verification isPrimary: type: boolean example: true description: Primary domain status qrCodeId: type: string nullable: true format: uuid example: 01933eb8-541f-7000-a9f4-e4eee80ff04e description: QR code template UUID qrCode: type: object nullable: true properties: options: type: object properties: type: type: string enum: - svg - canvas example: svg description: Output format for QR code generation width: type: number minimum: 100 exclusiveMinimum: true example: 300 description: QR code width in pixels maximum: 2000 height: type: number minimum: 100 exclusiveMinimum: true example: 300 description: QR code height in pixels maximum: 2000 margin: type: number minimum: 0 example: 4 description: Quiet zone margin around QR code (in modules) data: type: string example: https://example.com/abc123 description: Data to encode in QR code image: type: string format: uri example: https://example.com/logo.png description: Logo/image URL to embed in QR code center imageOptions: type: object properties: hideBackgroundDots: type: boolean example: true description: Hide QR dots behind the logo image imageSize: type: number minimum: 0 maximum: 1 example: 0.4 description: Logo size relative to QR code (0-1) crossOrigin: type: string example: anonymous description: CORS setting for loading external images margin: type: number minimum: 0 example: 10 description: Padding around logo in pixels description: Logo image customization options dotsOptions: type: object properties: type: type: string enum: - dots - rounded - classy - classy-rounded - square - extra-rounded description: Visual style for QR code data dots example: rounded color: type: string pattern: ^#[0-9A-Fa-f]{6}$ example: '#000000' description: Hex color for QR code dots gradient: type: object properties: type: type: string enum: - radial - linear description: Gradient type example: linear rotation: type: number example: 45 description: Gradient rotation angle in degrees minimum: 0 maximum: 360 colorStops: type: array items: type: object properties: offset: type: number minimum: 0 maximum: 1 example: 0.5 description: Position of color stop (0-1) color: type: string pattern: ^#[0-9A-Fa-f]{6}$ example: '#3B82F6' description: Hex color code for this stop required: - offset - color description: Color stop definition for gradient minItems: 2 description: Array of color stops defining the gradient example: - offset: 0 color: '#3B82F6' - offset: 1 color: '#8B5CF6' required: - type - colorStops description: Gradient configuration for dots roundSize: type: boolean example: true description: Apply rounding size algorithm description: Customization options for QR code data dots cornersSquareOptions: type: object properties: type: type: string enum: - dot - square - extra-rounded - dots - rounded - classy - classy-rounded description: Visual style for corner squares (outer ring) example: square color: type: string pattern: ^#[0-9A-Fa-f]{6}$ example: '#3B82F6' description: Hex color for corner squares gradient: type: object properties: type: type: string enum: - radial - linear description: Gradient type example: linear rotation: type: number example: 45 description: Gradient rotation angle in degrees minimum: 0 maximum: 360 colorStops: type: array items: type: object properties: offset: type: number minimum: 0 maximum: 1 example: 0.5 description: Position of color stop (0-1) color: type: string pattern: ^#[0-9A-Fa-f]{6}$ example: '#3B82F6' description: Hex color code for this stop required: - offset - color description: Color stop definition for gradient minItems: 2 description: Array of color stops defining the gradient example: - offset: 0 color: '#3B82F6' - offset: 1 color: '#8B5CF6' required: - type - colorStops description: Gradient for corner squares description: >- Customization for corner position detection squares cornersDotOptions: type: object properties: type: type: string enum: - dot - square - dots - rounded - classy - classy-rounded - extra-rounded description: Visual style for corner dots (inner dot) example: dot color: type: string pattern: ^#[0-9A-Fa-f]{6}$ example: '#8B5CF6' description: Hex color for corner dots gradient: type: object properties: type: type: string enum: - radial - linear description: Gradient type example: linear rotation: type: number example: 45 description: Gradient rotation angle in degrees minimum: 0 maximum: 360 colorStops: type: array items: type: object properties: offset: type: number minimum: 0 maximum: 1 example: 0.5 description: Position of color stop (0-1) color: type: string pattern: ^#[0-9A-Fa-f]{6}$ example: '#3B82F6' description: Hex color code for this stop required: - offset - color description: Color stop definition for gradient minItems: 2 description: Array of color stops defining the gradient example: - offset: 0 color: '#3B82F6' - offset: 1 color: '#8B5CF6' required: - type - colorStops description: Gradient for corner dots description: Customization for corner position detection dots backgroundOptions: type: object properties: round: type: number minimum: 0 maximum: 1 example: 0.1 description: Background corner rounding (0-1) color: type: string pattern: ^#[0-9A-Fa-f]{6}$ example: '#FFFFFF' description: Hex color for QR code background description: Background customization options required: - data description: QR code generation and styling options imageId: type: string nullable: true format: uuid example: 01933eb8-541f-7000-a9f4-e4eee80ff04e description: UUID of uploaded logo image file required: - options description: Default QR code template fallbackUrl: type: string nullable: true format: uri example: https://example.com/404 description: Fallback URL for 404s appleAppSiteAssociation: type: object nullable: true additionalProperties: nullable: true description: Apple Universal Links config androidAssetLinks: type: object nullable: true additionalProperties: nullable: true description: Android App Links config required: - id - createdAt - updatedAt - organizationId - domain - isActive - lastCheckedAt - isVerified - txtRecord - isPrimary - qrCodeId - fallbackUrl - appleAppSiteAssociation - androidAssetLinks description: Complete domain object with all fields '403': description: >- Forbidden - Missing required permission. Check your API key permissions or organization role. content: application/json: schema: type: object properties: code: type: string enum: - ACTION_NOT_ALLOWED description: Error code for permission denied message: type: string example: You do not have permission to delete domains description: Detailed explanation of the permission issue resource: type: string example: domains description: The resource type that was accessed action: type: string example: delete description: The action that was attempted required: - code - message example: code: ACTION_NOT_ALLOWED message: You do not have permission to delete domains resource: domains action: delete '404': description: >- Resource not found - The requested resource does not exist or you do not have access to it content: application/json: schema: type: object properties: code: type: string enum: - NOT_FOUND description: Error code indicating the requested resource was not found required: - code example: code: NOT_FOUND security: - ApiKey: [] components: securitySchemes: ApiKey: type: apiKey in: header name: x-api-key description: >- API Key authentication for programmatic access. **How to use:** 1. Create an API key from your dashboard settings 2. Include the key in the `x-api-key` header with each request 3. API keys have granular permissions (domains, shortLinks, files, stats, apiKeys) **Example:** ``` curl -H "x-api-key: your-api-key-here" https://api.h0p.co/short-link/list ``` **Types of API keys:** - **User keys**: Linked to your user account (one per organization) - **Bot keys**: Autonomous machine users (one per organization) **Security notes:** - Keep your API keys secure and never commit them to version control - API keys cannot access authentication endpoints (/auth/*) - Keys can be revoked at any time from the dashboard ````