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Opera Dragonfly - what the developer tool

Opera Dragonfly is a web development tool that is already integrated in the browser. With it, it is possible to check the website for errors, but also to improve the performance. You can open the tool via a shortcut or via the browser's context menu.

What's behind Opera Dragonfly

Opera is a free web browser that you can download for all major operating systems. There are already some tools integrated in the browser, this includes Opera Dragonfly. This is a web development tool. You can open it with the key combination "Ctrl" + "Shift" + "I". Alternatively, right-click anywhere in the browser. Then select the "Examine element" option. If you want to close the tool again, click on the "X" icon in the top right corner.
  1. Opera Dragonfly offers the option of remote debugging. This allows you to test a run of Opera on the same or different devices and troubleshoot.
  2. In addition, you can use Dragonfly to test the performance of the website.
  3. Once you have opened the tool, you can see the CSS and JavaScript properties of the object on the right side. The function of this can also be viewed.
  4. You can also view the network load history. Hier sehen Sie, welche Anfragen der Browser an den Server geschickt hat. Über „URL“ sehen Sie zudem die vollständigen HTTP-Requests und -Responses.

By Jozef Arencibia

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