> For the complete documentation index, see [llms.txt](https://help.rankability.com/llms.txt). Markdown versions of documentation pages are available by appending `.md` to page URLs; this page is available as [Markdown](https://help.rankability.com/getting-started/terminology-and-key-concepts.md).

# Terminology and key concepts

Use this reference when a Rankability label is unfamiliar or when two related terms have different meanings.

## Account and workspace terms

* **Organization** — Your Rankability account, subscription, pooled usage, members, and organization-level connected apps.
* **Client** — One business or website with its own profile, sources, integrations, projects, tracking, Activity, and Serena context. Always confirm the selected client before adding private material or starting work.
* **Project** — A durable unit of work inside a tool, such as a Copywriter content project or Track keyword project. Project settings and history remain scoped to their client.
* **Serena** — Rankability's AI assistant. Serena can analyze available client evidence and propose or run supported actions according to the approval shown in the product.
* **Activity** — The client work record for recommendations, alerts, approvals, human handoffs, active work, completed outputs, and follow-up measurement. It is not the same as a raw audit issue list.

Create the workspace first with [Creating a new client](/getting-started/creating-a-new-client.md), then use the [Quickstart checklist](/getting-started/quickstart-checklist.md) to add the context and measurements your workflow needs.

## Product areas

* **Researcher** — Keyword discovery, domain exploration, keyword gaps, saved lists, and opportunity analysis. Open it from **Research**.
* **Copywriter** — Research-to-brief, drafting, optimization, review, and publishing workflows. Open it from **Create**.
* **Audit** — Site, page content, Google Business Profile, and batch URL analysis tools.
* **Promote** — Backlink analysis, prospect discovery, enrichment, and outreach-list workflows.
* **Track** — Traditional and AI search visibility, results, trends, integrations, and client reporting. Some API routes retain the `reporter` namespace even though the visible product name is Track.

See [What is Rankability?](/getting-started/what-is-rankability.md) for how these areas work together.

## Sources, connections, and evidence

* **Source** — Client reference material such as a website page, uploaded file, pasted text, YouTube transcript, or supported imported file. A source must finish processing before it can reliably ground execution.
* **Integration or connection** — Authorized access to a service, property, profile, repository, publishing destination, or task system. A connected account does not mean every property is selected or current.
* **Chat attachment** — Material attached to a conversation. It can ground that interaction but does not automatically become a durable client source.
* **Owned asset** — A domain, profile, or result identified as belonging to the client for supported tracking and analysis.
* **Citation** — A source URL referenced by an AI answer. A citation does not by itself prove that the source mentions the tracked brand.

Read [Serena sources and data connections](/serena/advisor-knowledge-base-and-data-connections.md) before adding client evidence.

## Scores and measurement

* **SPI** — Search Performance Index, a 0–100 visibility score built from the tracked surfaces applicable to a query. Coverage and available components matter when comparing scores.
* **Content score** — Copywriter's optimization score for a draft against its research and recommended topics.
* **Opportunity score** — Researcher's prioritization signal in its main results.
* **KO Score** — A separate Keyword Overview score. Do not substitute it for Researcher's Opportunity score.
* **Benchmark** — A completed measurement without automatic recurring tracking.
* **Scan or run** — One attempt to collect configured Track results. A run can be pending, running, complete, partial, or failed.
* **Not tracked** — The platform was not selected for that keyword.
* **Not ranked** — A completed scan found no target ranking in the tracked range.
* **No scan** — No current completed measurement exists.
* **No history** — A current result exists, but no earlier comparable completed scan exists.

## Usage and access

* **Pooled usage** — The rolling account-level capacity for on-demand full-platform work. Billing shows remaining percentages for 24-hour and 7-day windows rather than per-action prices. Copywriter Core retains separate completed-outcome allowances.
* **Reservation** — Credits temporarily held while an operation runs. The operation's charging rule determines when a reservation is finalized or released.
* **Share link** — A revocable link for viewing a supported report or content item without organization membership.
* **Client portal** — A client-scoped, read-only reporting experience with configurable access and visibility.

Use [Understanding billing and usage](/account-and-settings/understanding-billing-and-credits.md) for billing rules and [Usage limits reference](/account-and-settings/credit-costs-reference.md) for current usage.