A TLD is the last part of an Internet address. For example, in xyz.com the TLD is .com.

In the context of SEO (Search Engine Optimization), TLD stands for “Top-Level Domain.” It refers to the last segment of a domain name, typically found after the last dot (e.g., .com, .org, .net, .edu, .gov). TLDs are an essential aspect of a website’s URL structure and can have implications for SEO.

Here’s a succinct answer you could provide in an interview:

“A Top-Level Domain (TLD) is the last segment of a domain name in a URL, such as .com, .org, .net, or country-specific ones like .uk or .de. In SEO, the choice of TLD can impact a website’s visibility and relevance in search engine results for specific regions or industries.”