Web-Layer Tests
Last updated
Last updated
Web layer tests touch on various Web technologies starting from the most basic measurement of availability of web server all the way up to performing precision transactions on a target. Web layer tests measure metrics like server availability, response time, throughput, redirects, response code, and page load performance.
For more information about HTTP server tests, see HTTP Server Tests.
Page load tests use te-chromium, a browser based upon the Chromium browser codebase, to obtain in-browser site performance metrics. The metrics include the completed page load time and phase information for each DOM component. A complete explanation of how ThousandEyes presents DOM information is available here: Navigating Waterfall Charts for Page Load and Transaction Tests. Instant page load tests provide a screenshot upon test completion, while scheduled page load tests provide screenshots when errors are recorded. A list of permitted content types is available in Permitted Content Types.
Provide metrics regarding the in-browser use experience.
Identify objects preventing or prolonging page load completion.
Monitor performance across content providers.
Below is a page load test targeting Google:
HTTP server test
Agent-to-server test
BGP test
Transaction tests emulate user interactions with a website. This test performs a series of scripted steps - such as entering data into a form or clicking a button - and provides completion time and performance metrics obtained while performing scripted actions. Transaction tests use the Selenium WebDriver engine. Tests scripts are created using JavaScript, from the ThousandEyes Recorder IDE or within the test settings. You can set screenshots and markers at different points within the script to identify important points within the transaction workflow.
Emulate common user interactions, such as completing a purchase.
Alert on degradation of site performance.
Below is a test that performs a login and a search:
HTTP server test
Agent-to-server test
BGP test
For additional guidance on creating a Transaction test, see
A File Transfer Protocol server is an essential storage component of modern enterprises. This test supports FTP, FTPS, and SFTP protocols.
Verify availability and performance of FTP server.
Read, write, and list files within a user's directory.
Verify SSH operation by selecting SFTP and performing a list test to any SSH enabled server.
Here is an FTP test to speedtest.tele2.net:21.
Agent-to-server test
BGP test
