What does the term "domain lookup" refer to in the context of cybersecurity?

The term "domain lookup" in the context of cybersecurity primarily refers to a query for registration information about a website. This process involves retrieving details such as the domain owner's name, contact information, and the registration and expiration dates of the domain. This information can be crucial in threat intelligence, as it helps security professionals identify who is behind a website, which can be helpful during investigations involving phishing or other malicious domains.

Understanding this term is vital as it plays a significant role in incident response and threat analysis. By conducting a domain lookup, security teams can gather intelligence about potentially harmful sites or entities and determine if they pose a risk.

The other contexts provided, such as searching for a server's physical location, inspecting web traffic analytics, or checking historical DNS records, do not directly relate to the core definition of a domain lookup in the cybersecurity realm, which centers around registration information.