Agafurretor dot com Pop-up Ads
Agafurretor dot com is a domain associated with an advertising network that serves ads of questionable quality. Similar websites are often associated with ad networks that serve intrusive, often potentially dangerous advertising.
If your browser keeps referring you to Agafurretor dot com, it is very likely that you have a browser hijacker of some sort on your system as well. This may lead to Agafurretor ads being injected in pages that don't usually have them. Those both slow down your browser and loading times, as well as often link to potentially dangerous sites that may lead to additional malware infections.
Other signs of the presence of a browser hijacker on your system is the sudden change of your browser's default search engine and home page to new ones. When this happens without your knowledge and permission, the reason for the change is usually a browser hijacker.
Some browser hijackers also share some similarities with adware, especially when they inject ads in pages you browse or cause excessive ad pop-ups to appear.
At the time of this writing, the domain Agafurretor dot com does not load up any web page and returns a string of errors. Whether this means the associated ads are also no longer actively being served cannot be determined with complete certainty.
One way to avoid browser hijackers is to steer clear of free download websites that offer bundle installers. A lot of bundle installers carry potentially unwanted programs such as browser hijackers in the bundle and those install quietly, without proper disclosure.