> ## Knowledge Base Index
> Fetch the complete knowledge base index at: https://help.faaaster.io/sitemap.xml
> Use this file to discover available pages before exploring further.
> Pure-Markdown content can be obtained by appending a '.md' suffix to the content URLs listed in the sitemap (without the trailing slash).

# How do I monitor my Faaaster site's availability and resources?

The site's **Monitoring** tab shows availability and how resources change over time, over windows of **3 h**, **24 h**, **7 d** or **30 d**.

## What is measured

- **Availability** — is the site responding? The availability percentage, the downtime, the number of incidents and the **Incident history** for the period. With **3 h** or **24 h**, these figures cover the last 24 h.
- **CPU** — with the current value
- **Memory** — with the current value
- **Disk** — with the current value
- **OPcache — free memory**
- **PHP errors** — number of errors recorded

Each indicator shows its current value, its curve over the chosen period, and its **min**, **avg** and **max** values.

At the top of the screen, the **Latest resource measurements** card gives the site's state at the time of the last measurement: site memory and CPU, PHP memory peak, PHP workers, OPcache memory. The **All metrics** button opens the details, with a **Normal**, **Watch** or **Critical** status for each resource.

## Changing the period

The **3 h**, **24 h**, **7 d** and **30 d** buttons at the top of the screen change the observation window. **Refresh** reloads the measurements.

![The Monitoring tab: the latest resource measurements, then availability, with the 3 h, 24 h, 7 d and 30 d period buttons.](https://storage.crisp.chat/users/helpdesk/website/-/9/d/2/d/9d2d3e0b7134b800/act-monitoring-en_1m62643.png)

## What it's for

These curves help you tell a one-off incident from an underlying drift: a site that has been sluggish for a week and a site that went down this morning aren't handled the same way.

> **Not to be confused with the Performance tab**, which shows response time, the PageSpeed score and cache settings. Monitoring, on the other hand, shows the latest resource measurements and their history.