PRTG Manual: Cloud HTTP v2 Sensor

Internet access

• The probe system requires access to the internet and must be able to reach https://api.prtgcloud.com:443 to communicate with the PRTG Cloud.
• This sensor requires that the address in the settings of the parent device is reachable via the internet.

Smart URL replacement

This sensor supports smart URL replacement.

IPv6

This sensor supports IPv6.

Performance impact

This sensor has a low performance impact.

Lookups

This sensor uses lookups to determine the status values of one or more channels.

Limits

This sensor has predefined limits for several metrics.

Probe system

To monitor a probe system, enter the URL of the probe system that is reachable via the internet as Custom URL in the Cloud HTTP Specific settings or add a device with the URL in the settings of the device.

Inheritance

This sensor inherits proxy settings from the parent device.

Scanning interval

• The minimum scanning interval of this sensor is 1 minute.
• The recommended scanning interval of this sensor is 5 minutes.

Multi-platform probe

You can add this sensor to a multi-platform probe.

Knowledge Base

Knowledge Base: What is the PRTG Cloud Bot?

URL

Select if you want to inherit the URL from the parent device or if you want to enter a custom URL:

• Inherit (default)
• Custom

Custom URL

This setting is only visible if you select Custom above.

Enter the URL that you want to monitor.

The URL must be valid and URL encoded.

You can enter a URL that leads to a web page, for example, to measure the page source code's loading time, or you can enter the URL of an image or other page asset to measure this element's availability and loading time.

PRTG uses a smart URL replacement with which you can use the parent device's IP address or Domain Name System (DNS) name setting as part of the URL. For more information, see section Smart URL Replacement.

Request Method

Select an HTTP request method to determine how the sensor requests the URL:

• GET (default): Directly request the web page. We recommend that you use this setting for a simple check of a web page.
• POST: Send post form data to the URL.
• HEAD: Only request the HTTP header from the server without the actual web page.
  This setting saves bandwidth because it transfers less data. However, we do not recommend this setting because the measured request time is not the request time that the users experience and you might not be notified of slow results or timeouts.

Postdata

This setting is only visible if you select POST above.

Enter the data part for the POST request.

Region

Select the regions from which you want to check the service:

• Asia Pacific (Singapore)

• Asia Pacific (Sydney)
• Europe (Ireland)
• US East (Northern Virginia)
• US West (Northern California)

PRTG creates two channels for every region that you select.

Timeout (Sec.)

Enter a timeout in seconds for the ping. If the reply takes longer than this value, PRTG cancels the request and shows an error message. Enter an integer. You can enter a value between 1 and 30 seconds.

Primary Channel

Select a channel from the list to define it as the primary channel. In the device tree, PRTG displays the last value of the primary channel below the sensor's name. The available options depend on what channels are available for this sensor.

You can set a different primary channel later by clicking below a channel gauge on the sensor's Overview tab.

Graph Type

Define how this sensor shows different channels:

• Show channels independently (default): Show a graph for each channel.
• Stack channels on top of each other: Stack channels on top of each other to create a multi-channel graph. This generates a graph that visualizes the different components of your total traffic.
  You cannot use this option in combination with manual Vertical Axis Scaling (available in the channel settings).

Stack Unit

This setting is only visible if you select Stack channels on top of each other above.

Select a unit from the list. PRTG stacks all channels with this unit on top of each other. By default, you cannot exclude single channels from stacking if they use the selected unit. However, there is an advanced procedure to do so.

Result Handling

Define what PRTG does with the sensor result:

• Discard result (default): Do not store the sensor result.
• Store result: Store the sensor result and the last response in the \Logs\sensors subfolder of the PRTG data directory on the probe system. The file name is Result of Sensor [ID].log. This setting is for debugging purposes. PRTG overwrites this file with each scanning interval.

This option is not available when the sensor runs on the hosted probe of a PRTG Hosted Monitor instance.

In a cluster, PRTG stores the result in the PRTG data directory of the master node.

Asia Pacific (Singapore)

The response time of the target server at the location

This channel has default limits:

• Upper error limit: 5000 msec
• Upper warning limit: 3333 msec

Asia Pacific (Singapore) - HTTP Response Code

The response code of the target server at the location

Asia Pacific (Singapore) - PRTG Cloud Response

If the PRTG Cloud query was successful or not

• Up status: OK

• Down status: Failed

Asia Pacific (Sydney)

The response time of the target server at the location

This channel has default limits:

• Upper error limit: 5000 msec
• Upper warning limit: 3333 msec

Asia Pacific (Sydney) - HTTP Response Code

The response code of the target server at the location

Asia Pacific (Sydney) - PRTG Cloud Response

If the PRTG Cloud query was successful or not

• Up status: OK
• Down status: Failed

Downtime

In the channel table on the Overview tab, this channel never shows any values. PRTG uses this channel in graphs and reports to show the amount of time in which the sensor was in the Down status.

Europe (Ireland)

The response time of the target server at the location

This channel has default limits:

• Upper error limit: 5000 msec
• Upper warning limit: 3333 msec

Europe (Ireland) - HTTP Response Code

The response code of the target server at the location

Europe (Ireland) - PRTG Cloud Response

If the PRTG Cloud query was successful or not

• Up status: OK
• Down status: Failed

Global Average

The average global loading time

This channel is the primary channel by default.

This channel has default limits:

• Upper error limit: 5000 msec
• Upper warning limit: 3333 msec

US East (Northern Virginia)

The response time of the target server at the location

This channel has default limits:

• Upper error limit: 5000 msec
• Upper warning limit: 3333 msec

US East (Northern Virginia) - HTTP Response Code

The response code of the target server at the location

US East (Northern Virginia) - PRTG Cloud Response

If the PRTG Cloud query was successful or not

• Up status: OK
• Down status: Failed

US West (Northern California)

The response time of the target server at the location

This channel has default limits:

• Upper error limit: 5000 msec
• Upper warning limit: 3333 msec

US West (Northern California) - HTTP Response Code

The response code of the target server at the location

US West (Northern California) - PRTG Cloud Response

If the PRTG Cloud query was successful or not

• Up status: OK
• Down status: Failed