> ## Documentation Index
> Fetch the complete documentation index at: https://docs.surnex.io/llms.txt
> Use this file to discover all available pages before exploring further.

# Domain tech stack analysis

> Detect technologies used by a domain including CMS, analytics, frameworks, CDN, hosting, and more. Results are grouped by technology category and cached for 24 hours. Counts against the domain_lookups_daily plan limit.



## OpenAPI

````yaml https://api.surnex.io/openapi.json get /v1/domains/{domain}/tech-stack
openapi: 3.1.0
info:
  title: Surnex API
  description: |-
    Surnex SEO Platform API — api.surnex.io

    Provides the complete backend for the Surnex SEO dashboard including:
    - Multi-tenant organization management
    - Project tracking (domains)
    - Keyword rank tracking (Phase 1+)
    - Backlink analysis (Phase 3+)
    - Site auditing (Phase 4+)
    - Stripe billing integration
    - MCP endpoint for AI agents at /mcp
  version: 0.1.0
servers: []
security: []
paths:
  /v1/domains/{domain}/tech-stack:
    get:
      tags:
        - Tech Stack
      summary: Domain tech stack analysis
      description: >-
        Detect technologies used by a domain including CMS, analytics,
        frameworks, CDN, hosting, and more. Results are grouped by technology
        category and cached for 24 hours. Counts against the
        domain_lookups_daily plan limit.
      operationId: get_tech_stack_v1_domains__domain__tech_stack_get
      parameters:
        - name: domain
          in: path
          required: true
          schema:
            type: string
            title: Domain
        - name: X-API-Key
          in: header
          required: false
          schema:
            anyOf:
              - type: string
              - type: 'null'
            title: X-Api-Key
      responses:
        '200':
          description: Successful Response
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/APIResponse_TechStackResponse_'
        '422':
          description: Validation Error
          content:
            application/json:
              schema:
                $ref: '#/components/schemas/HTTPValidationError'
      security:
        - HTTPBearer: []
components:
  schemas:
    APIResponse_TechStackResponse_:
      properties:
        success:
          type: boolean
          title: Success
          default: true
        data:
          anyOf:
            - $ref: '#/components/schemas/TechStackResponse'
            - type: 'null'
      type: object
      title: APIResponse[TechStackResponse]
    HTTPValidationError:
      properties:
        detail:
          items:
            $ref: '#/components/schemas/ValidationError'
          type: array
          title: Detail
      type: object
      title: HTTPValidationError
    TechStackResponse:
      properties:
        domain:
          type: string
          title: Domain
          description: The analyzed domain.
        categories:
          items:
            $ref: '#/components/schemas/TechnologyCategory'
          type: array
          title: Categories
        total_technologies:
          type: integer
          title: Total Technologies
          default: 0
      type: object
      required:
        - domain
      title: TechStackResponse
      description: Full tech stack profile for a domain, grouped by category.
    ValidationError:
      properties:
        loc:
          items:
            anyOf:
              - type: string
              - type: integer
          type: array
          title: Location
        msg:
          type: string
          title: Message
        type:
          type: string
          title: Error Type
        input:
          title: Input
        ctx:
          type: object
          title: Context
      type: object
      required:
        - loc
        - msg
        - type
      title: ValidationError
    TechnologyCategory:
      properties:
        category:
          type: string
          title: Category
          description: Category name (e.g., 'CMS', 'Analytics').
        technologies:
          items:
            $ref: '#/components/schemas/TechnologyItem'
          type: array
          title: Technologies
      type: object
      required:
        - category
      title: TechnologyCategory
      description: A group of technologies sharing the same category label.
    TechnologyItem:
      properties:
        name:
          type: string
          title: Name
          description: Technology name.
        version:
          anyOf:
            - type: string
            - type: 'null'
          title: Version
          description: Detected version.
        category:
          type: string
          title: Category
          description: Technology category.
          default: ''
        icon_url:
          anyOf:
            - type: string
            - type: 'null'
          title: Icon Url
          description: Technology icon URL.
        confidence:
          anyOf:
            - type: number
            - type: 'null'
          title: Confidence
          description: Detection confidence score (0-1).
        last_detected:
          anyOf:
            - type: string
            - type: 'null'
          title: Last Detected
          description: When this technology was last detected.
        subcategory:
          anyOf:
            - type: string
            - type: 'null'
          title: Subcategory
          description: Finer-grained technology subcategory.
      type: object
      required:
        - name
      title: TechnologyItem
      description: A single detected technology on a domain.
  securitySchemes:
    HTTPBearer:
      type: http
      scheme: bearer

````