The video discusses a case study by it.com on using two domain names, example.com and example.it.com, and their performance on a Google AdWords campaign. The .com domain performed better initially, but the .it.com domain started performing better after the campaign was restarted. The reason for this was the use of a keyword-rich domain name that implied trustworthiness to the audience. The video also discusses the importance of trust in online transactions and how .com domains are perceived as more trustworthy. Additionally, the video mentions a technical fact about certain antivirus tools blocking websites with high-risk extensions such as .xyz.