![har viewer chrome har viewer chrome](https://www.savetheproof.com/wp-content/uploads/2019/12/Waterfall-graph-on-HAR-Viewer.png)
Doing this will have an effect on page loading time as the browser must request all of the same resources every time the user revisits the page.
![har viewer chrome har viewer chrome](https://cdn.browserhow.com/wp-content/uploads/sites/3/Network-Tab-Preserve-Logs-options-in-Chrome-computer.jpg)
Once you have your capture, you can export it to a HAR file by clicking on "HAR" and selecting "Save All As HAR". From here you can allow the capturing of the HTTP session of the current tab.
#Har viewer chrome download
If you are using IE, you will need to download HTTP Watch.Generating a HAR Fileĭepending on which browser you are using, there are a few ways to generate a HAR file. When in the waterfall view, you can hover over a single resource to display additional timing details. You will need to refresh the page to see each resource's details. You can view this by going to Menu > More Tools > Developer Tools and selecting the Network tab. Timing reads are displayed for each resource of a website when viewing them in Google Chrome's Developer Tools - waterfall view. Content download/downloading: The time spent receiving the response data.Waiting (TTFB): The time spent waiting for the initial response, also known as the Time To First Byte.Request sent/sending: The time spent issuing the network request.SSL: The time spent completing an SSL handshake.Initial connection/connecting: The time it took to establish a connection.DNS lookup: The time spent performing the DNS lookup.Proxy negotiation: The time spent negotiating with the proxy server connection.
![har viewer chrome har viewer chrome](https://i.ebayimg.com/images/g/0nIAAOSwehtfEhG-/s-l640.jpg)
This includes any time spent in proxy negotiation or when waiting for an established connection to become available for reuse. Stalled/blocking: The time the request spent waiting before it could be sent.Based on Google's Network Performance article, the following outlines and explains each component that can exist in a HAR file generated from Google Chrome's developer tools. Inside the HAR file, there will be several timing components. HAR file information is stored in JSON format which means in order to visualize the information easier, tools such as the HAR Viewer can be used. The HAR file keeps track of each resource loaded by the browser along with timing information for each resource.
![har viewer chrome har viewer chrome](https://barmilyentempi.com/dfsfrh/CgxhqmSdOdPpyKP7cfqJbAHaFj.jpg)
A HAR file is primarily used for identifying performance issues, such as bottlenecks and slow load times, and page rendering problems. HAR, short for HTTP Archive, is a format used for tracking information between a web browser and a website.