Requirements and Authentication for Selenium Web Checks
Last updated on 22 April, 2025Requirements for Selenium Web Checks
- To record a browser transaction, you need one of the following:
- Selenium IDE Firefox
For more information, see Selenium IDE from Firefox Browser Add-ons. - Standalone Selenium IDE Extension
For more information, see 4.0.1-beta.14 Assets from SeleniumHQ.
- Selenium IDE Firefox
- Manage permissions for all listed resources in the Resource Tab.
- Access permission to the Synthetics Monitoring for adding the new synthetic web test.
- An active collector should be configured with the grid URL.
Authentication for Selenium Web Checks
You can add authentication to your Synthetics Web Checks with the following actions:
- Parameterizing the appropriate credentials inside the Selenium
.side
file
This can be accomplished after you record your browser transaction by modifying the.side
file with the appropriate authentication. - Specifying the credentials when uploading the Web check to LogicMonitor
You can specify the credentials in a step of the Synthetics Website Test wizard in your LogicMonitor portal
Note: In addition to authentication, you can specify a LogicMonitor property while uploading the .side file in the portal using the wizard. Specify in the format {synthetics.variable.variableName}. For example, synthetics.selenium.test.timeout.
Credentials consist of a username and password if you are using multi-factor authentication (MFA) token. LogicMonitor leverages the existing variable substitution in Selenium IDE to securely inject your authentication information.
Recording a Browser Transaction
Follow the Getting Started instructions from Selenium to record a browser transaction.
Recommendation: You can add WAIT_FOR_ELEMENT_VISIBLE property in the .side file and set the value greater than zero to allow a waiting period for the elements to load. A timeout error displays, If the elements don’t load in the specified period
When complete, save your .side file in a location you can access for uploading to LogicMonitor.
Note: Selenium allows you to connect to a session using a VNC viewer to watch the browser as a test executes. You can connect VNC directly to the exposed node port using a VNC viewer (For example, VNC Connect).).
Selenium Grid 4 includes a NoVNC web viewer. Exposing port 7900 allows you to open the port in a browser and see the VNC viewer activity without installing a viewer. If you use the provided docker-compose file, you would use the following:
– Chrome: “http://:7900”
– Edge: “http://:7901”
– Firefox: “http://:7901”
See the following for additional tips:
Debugging.
You can also run “Poll now” on the Selenium Webcheck to see any error messages that may be encountered.
Adding Authentication to the Browser Recording
To add authentication, you must parameterize the credentials in the Selenium .side
file by replacing each instance of username, password, and token with the appropriate variable substitution.
Variables can be substituted in Selenium IDE text fields by surrounding a variable name with ${}
. For example, to substitute the value of the variable myVar
into the condition of an if
statement would look similar to the following:${myVar} === "a"
.
For more information, see Selenium’s Conditional Branching documentation.
LogicMonitor uses the following special variables to substitute your credentials username, password, and token respectively:
credential.username
credential.password
credential.token

Note: Each credential field (username, password, and token) are printed to the execution log using the echo command.
Recommendation: Specify multiple test user accounts to be added to a “pool” of users that the test pulls from. This ensures MFA can be tested properly and avoids situations where one specific test user is attempting to log in too many times from different locations.
Downloading the SIDE file
You can download the SIDE file used for your Synthetics Web Check.
- In LogicMonitor, navigate to Resources > select Synthetics resource.
- Select (Manage Resource Options)
.
- Select Download SIDE file.