Learn more about usg.spiessummarising.com
When your web browser keeps forwarding to usg.spiessummarising.com, you may infect with certain adware or PUP, which offer additional program (browser hijacker). This website comes stealthily and can be set default without any permission. It aims at promoting its sponsored programs from the third party.
This domain can be used to promote some media or video update which has been reported to be bogus. What you get from those update can be PUP or even rogue programs. Once these programs get in your PC, they will mess up your system. They can also act as keyloggers that has the ability to catch your secret data. Anyway, it is not advised to download programs from this website.