Speed Checker Add-ons

Internet Speed Check for the Firefox Browser. Run the Speed Check in the Firefox Sidebar.

The Firefox Addon comes with additional functions:


Write Privat Notes for all visited Websites. Make a IP Lookup, IP Blacklist Check.

Get Browser, Device and Screen Informationen.

InternetSpeed.tk is available for the Edge Browse as Addon.

Internet Speed Check for Opera. Launch: 01.02.2021

Internet Speed Check as  for Google Chrome Browser.