The Partner Reporting API now includes a historical trend endpoint that returns time-series data for Domain Power (DP), Domain Rating (DR), and Domain Authority (DA). If you manage a large client portfolio, use this endpoint to track how each metric changes over time for any domain — moving beyond the previous snapshot-only model.

## 📋 What Changed: From Snapshots to Time-Series Data

Previously, the Partner Reporting API exposed only the current (point-in-time) value for Domain Power, Domain Rating, and Domain Authority. The historical trend endpoint stores metric data across time and returns a dated series of values, so you can chart how a domain's authority scores have trended over any period covered by the Search Atlas index.

## 📊 The Three Metrics Available in the Trend Endpoint

The endpoint returns time-series data for three domain-level metrics:

- **Domain Power (DP)** — Search Atlas's proprietary score measuring a domain's overall SEO strength, on a scale of 0–100.
- **Domain Rating (DR)** — A measure of the strength and quality of a domain's backlink profile within the Search Atlas index.
- **Domain Authority (DA)** — A score reflecting a domain's likelihood to rank in organic search results, derived from multiple ranking signals.

All three metrics are returned as dated data points, so you can build trend charts and identify metric movement across any queried date range.

## 🔑 Who Can Access This Endpoint

The historical trend endpoint is available to partner accounts on Search Atlas. If you already manage client domains through the partner portal, your existing partner API credentials cover this endpoint — no additional provisioning is required.

If you do not yet have partner API access, contact your Search Atlas account manager to enable it for your organization.

## 🚀 How to Query the Historical Trend Endpoint

To retrieve historical trend data for a domain, send an authenticated request to the Partner Reporting API's trend endpoint and specify the domain and the date range you want to query.

1. Authenticate using your partner API credentials.
2. Call the historical trend endpoint, passing the target domain as a parameter.
3. Specify the start and end dates for the time range you want to retrieve.
4. The API returns a time-ordered series of DP, DR, and DA values for that domain.

For the full endpoint reference — including the exact URL, required parameters, and response schema — visit the partner API documentation portal or contact your Search Atlas partner representative.

## 💡 Common Use Cases for Partner Portfolios

Partner customers use the historical trend endpoint to:

- Generate client-facing reports that show authority score improvement over a campaign period.
- Detect unexpected drops in Domain Power or Domain Rating across a portfolio and flag domains for investigation.
- Benchmark a client domain's growth against a competitor's historical trend data.
- Feed time-series metrics into internal dashboards or business intelligence tools for automated portfolio reporting.

**🎯 You now know how to access historical Domain Power, Domain Rating, and Domain Authority trends through the Partner Reporting API — use this data to power client reports and portfolio-level insights. To explore other partner API capabilities or set up automated reporting workflows, contact your Search Atlas partner representative.**