domainutil

Documentation

Index

• func Domain(url string) string
• func DomainSuffix(url string) string
• func HasSubdomain(domain string) bool
• func Subdomain(url string) string

Examples

• Domain
• DomainSuffix
• HasSubdomain
• Subdomain

Functions

func Domain

func Domain(url string) string

Domain returns top level domain from url string. If no domain is found in provided url, this function returns empty string. If no TLD is found in provided url, this function returns empty string.

Example

fmt.Println(Domain("google.co.uk"))
fmt.Println(Domain("keep.google.com"))

Output:

google.co.uk
google.com

func DomainSuffix

func DomainSuffix(url string) string

DomainSuffix returns domain suffix from provided url. If no TLD is found in provided url, this function returns empty string.

Example

fmt.Println(DomainSuffix("google.co.uk"))
fmt.Println(DomainSuffix("keep.google.com"))

Output:

co.uk
com

func HasSubdomain

func HasSubdomain(domain string) bool

HasSubdomain reports whether domain contains any subdomain.

Example

fmt.Println(HasSubdomain("google.com"))
fmt.Println(HasSubdomain("keep.google.com"))

Output:

false
true

func Subdomain

func Subdomain(url string) string

Subdomain returns subdomain from provided url. If subdomain is not found in provided url, this function returns empty string.

Example

fmt.Printf("%q %q", Subdomain("google.com"), Subdomain("keep.google.com"))

Output:

"" "keep"