Speedtest-guide.com

Speedtest-guide.com is a website that promotes a free Internet Speed Test, but there is a catch – users who try to test their Internet speed will be asked to install a browser extension called 'Speed Test Guide.' While this add-on does not exhibit harmful behavior, we advise you not to install an unknown browser add-on when their only valuable feature appears to be an Internet speed test, especially – the same service is offered by countless of free Web pages, and they will not ask you to install 3rd-party software.

While Speed Test Guide is not a security concern, it is important to mention that this program is tagged as a Potentially Unwanted Program (PUP) by multiple popular computer security applications. PUPs tend to display undesired and annoying behavior – in the case of Speed Test Guide, its installer may modify your browser's settings, so that you will be referred to Speedtest-guide.com/newtab/v1 whenever you try to search the Web through the address bar. This change is not a major issue, but you should know that this website may end up providing you with unreliable search results.

It is recommended to stay away from browser add-ons that demand to replace your browser's new tab page or search engine – such add-ons often are classified as PUPs, and they do not have any valuable features to offer. If you have installed the Speed Test guide add-on, you should consider removing it either with the help of a PC security tool or via your Web browser's extension manager.