validateurl

var (
	// ErrInvalidFormat reports a URL string that cannot be parsed.
	ErrInvalidFormat = errors.New("invalid URL format")
	// ErrInvalidHTTPS reports a URL that is not absolute HTTPS with a host.
	ErrInvalidHTTPS = errors.New("URL must be an absolute https URL")
	// ErrQueryOrFragment reports a URL containing query or fragment components.
	ErrQueryOrFragment = errors.New("URL must not include query or fragment")
)