Tldts

tldts is a fast JavaScript utility to extract hostnames, domains, public suffixes, top-level domains, and subdomains from URLs.

Key Features:

• Tuned for performance (order of 0.1 to 1 μs per input)
• Handles both URLs and hostnames
• Full Unicode/IDNA support
• Support parsing email addresses
• Detect IPv4 and IPv6 addresses
• Continuously updated version of the public suffix list
• TypeScript, ships with umd, esm, cjs bundles and type definitions
• Small bundles and small memory footprint
• Battle tested: full test coverage and production use.