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Please find the latest manual for Webserver Stress Tool here:

Manual Webserver Stress Tool (pdf)

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Testing Elements

Webserver Stress Tool aggregates a number of different testing elements to help you get a holistic view of your entire website/webserver/application performance.

·      Click Time: A simulated user’s mouse click that sends a request (one of the URLs from the URL list) to the server and immediately requesting any necessary redirects, frames and images (if enabled). The click time is calculated as the time between when the user clicked and when the server delivered the requested resources with all referenced items (images etc.). 

·      Average Click Times: The average values per URL, per user or per website

·      Time for DNS: Time to resolve a URL's domain name using the client system's current DNS server.

·      Time to connect: Time to set up a connection to the server.

·      Time to first byte (TFB): Time between initiating a request and receiving the first byte of data from the server

·      Request Time (TLB, Time to last Byte): Time for a single HTTP request (i.e. HTML page, image, frameset etc.)

·      User/Server Bandwidth: The bandwidth a user and  a server were able to achieve.

·      Sent Requests: Number of requests sent to the server during a period.

·      Received Requests: Number of answers received from the server during a period.

·      Open Requests: Number of open request for a given moment

·      Error rates: Number of failed request per time period, per user or per URL

·      Webserver Stress Tool generates the applicable data elements for a specific test into a CSV-format log file for easy viewing.

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