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# Websites and sections

Governance tests **websites**. A website can also have **sections**: parts of it, such as `/admissions/`, that Silktide reports on as if each were a website of its own, with its own scores, checks and reports.

## Section 0 is the whole website

Every website has a section that cannot be removed, with the `sectionId` `0`. It covers the whole website. So wherever an operation takes a `websiteId` and a `sectionId`, section `0` means "the whole website", and that is the default when you leave `sectionId` out.

## Subsite ids

Some responses name a website and a section together as a `subsiteId`, written `{websiteId}-{sectionId}`:

| `subsiteId` | Means |
| --- | --- |
| `2-0` | The whole of website 2. |
| `2-5` | Section 5 of website 2. |

[List websites and their sections](https://developers.silktide.com/v1/governance/websites/list-websites.md) returns one row per section, section `0` included, each with its `subsiteId`.
