> ## Documentation Index > Fetch the complete documentation index at: https://docs.orbit.devotel.io/llms.txt > Use this file to discover all available pages before exploring further. # Record a conversion via the tracking pixel > Public 1×1 transparent GIF conversion pixel. Embed the signed URL on a third-party thank-you or confirmation page; when the browser loads the image, Orbit records a conversion for the given goal and contact. The request is HMAC-signed (`sig`) and bound to `goalId`, `contactId` and the tenant `schema`, so a third party can neither forge a conversion nor replay a signature into a different tenant's goal. The endpoint always returns the GIF with a `200` — even when the signature is missing or invalid — so the host page never shows a broken image. ## OpenAPI ````yaml /openapi.yaml get /g/{goalId}/{contactId}.gif openapi: 3.1.0 info: title: Devotel CPaaS API description: Orbit by Devotel — Communications Platform as a Service API version: 1.0.0 contact: name: Devotel url: https://devotel.io email: support@devotel.io license: name: Proprietary servers: - url: https://api.orbit.devotel.io description: Production security: - Bearer: [] - ApiKey: [] tags: - name: Messages description: >- Send and manage messages across all channels (SMS, WhatsApp, RCS, Email, Viber, etc.) - name: Fax description: >- List and track fax (MMS/T.38) transmissions on Telnyx-backed fax numbers (sending flows through the Messaging API) - name: Agents description: AI agent creation, configuration, and execution - name: Voice description: Voice calls, IVR, conferencing, and SIP trunking - name: OnCall description: On-call rotations and escalation policy planning for incident alerting - name: Webhooks description: Webhook endpoint management and delivery logs - name: Numbers description: Phone number search, provisioning, and configuration - name: Brand Identity description: >- Unified cross-channel brand trust posture (10DLC, toll-free, WhatsApp, RCS, branded calling, number KYC) - name: Contacts description: Contact management, segmentation, and lifecycle tracking - name: Campaigns description: Marketing campaign orchestration and analytics - name: Flows description: Automation flow builder and execution engine - name: Templates description: Message template management and approval workflows - name: Settings description: Organization, channel, and user preference settings - name: Verify description: OTP generation and verification across channels - name: Push description: Push notification delivery via FCM and APNs - name: Integrations description: Third-party service connections and OAuth management - name: CDP description: >- Customer Data Platform — activation surface (CRM object sync, streaming destinations, ad-audience activation) - name: Files description: >- Server-to-server media upload, listing, retrieval, and deletion (signed-URL backed) - name: Commerce description: >- Omnichannel conversational-commerce — persistent cart + checkout state machine, channel-agnostic hosted pay-by-link, native WhatsApp checkout, and AP2-style agent payment mandates. - name: Sync description: >- Real-time shared-state primitive (Twilio Sync parity) — Documents, Maps, Lists, and ephemeral Streams, with change events relayed over the /api/v1/ws/sync WebSocket gateway - name: Risk description: >- Unified cross-channel Trust & Fraud risk scoring — fuses SMS-pumping, URL-reputation, Verify Fraud Guard, and Voice Biometrics signals into one composite verdict queryable before a send or a call. - name: Orby description: >- In-dashboard Orby operator assistant: streamed assistant turns, conversation threads, product knowledge-base search, and the tool-action approval gate. Available to signed-in operators only (dashboard session auth — API-key requests are rejected). paths: /g/{goalId}/{contactId}.gif: get: tags: - Analytics summary: Record a conversion via the tracking pixel description: >- Public 1×1 transparent GIF conversion pixel. Embed the signed URL on a third-party thank-you or confirmation page; when the browser loads the image, Orbit records a conversion for the given goal and contact. The request is HMAC-signed (`sig`) and bound to `goalId`, `contactId` and the tenant `schema`, so a third party can neither forge a conversion nor replay a signature into a different tenant's goal. The endpoint always returns the GIF with a `200` — even when the signature is missing or invalid — so the host page never shows a broken image. parameters: - schema: type: string in: path name: goalId required: true description: The goal the conversion is credited to. - schema: type: string in: path name: contactId required: true description: The contact the conversion is attributed to. - schema: type: string in: query name: sig required: true description: >- HMAC-SHA256 signature binding `goalId`, `contactId` and the tenant schema. Minted by Orbit when the pixel URL is generated. - schema: type: string pattern: ^tenant_[a-z0-9_]+$ in: query name: schema required: true description: >- The tenant schema the goal belongs to; verified against the signature so a swapped value cannot cross-tenant-write. responses: '200': description: >- A 1×1 transparent GIF served with no-cache headers. Returned whether or not a conversion was recorded — a missing or invalid signature is silently ignored so the pixel never breaks the host page. content: image/gif: schema: type: string format: binary components: securitySchemes: Bearer: type: http scheme: bearer bearerFormat: JWT description: Dashboard JWT token from Clerk ApiKey: type: apiKey name: X-API-Key in: header description: Server-to-server API key (dv_live_sk_*) ````