The US IT security company Blue Coat has conducted a study on the use of TLDs. It also examined which top level domains are classified as "dangerous". Behind these, there is often spam, malware or phishing. The following domains were listed in the top ten dangerous new TLDs: .zip, .review, .country, .kim, .cricket, .science, .work, .party, .gq, .link. Based on the study, you should avoid using such a TLD. If you use one of these TLDs, it is advisable to change the top level domain with the help of your hosting provider.