Uses tldts library

Uses parse function

Extracts publicSuffix field

Extracts domain field

Extracts subdomain field

Handles multi-level TLDs

Wildcard rule support

Public suffix extraction

ICANN domain identification

Private domain handling

IP address detection

TLD grouping logic

Invalid URL handling

Import tldts

Use parse function

Extract domain field

Extract subdomain field

Extract publicSuffix field

Extract hostname field

Handle isIp detection

Uses tldts parse function

Handles Unicode domains

Handles Punycode domains

Extracts email domains

Extracts subdomain correctly

Extracts publicSuffix correctly

Uses domain property

Domain extraction

Public suffix extraction

Subdomain extraction

Domain without suffix

IP detection

Unicode/IDNA handling

Import tldts functions

Parse input URLs

Extract hostname correctly

Extract domain correctly

Extract public suffix

Detect normalization requirement

Detect known TLDs

Uses getSubdomain function

Imports tldts correctly

Handles null returns

Single URL analysis

Batch URL analysis

Handles empty subdomains

Uses tldts library

Applies validHosts option

Extracts hostname correctly

Extracts domain correctly

Extracts subdomain correctly

getHostname usage

IP detection

Batch processing

Hostname validation

Grouping implementation

Options usage

parse() usage

allowPrivateDomains option

isIcann flag check

isPrivate flag check

domain field extraction

publicSuffix extraction

subdomain extraction