http

var DefaultHTTPClient = &http.Client{
	Transport: &http.Transport{
		Proxy: http.ProxyFromEnvironment,
		Dial: (&net.Dialer{
			Timeout:   10 * time.Second,
			KeepAlive: 0,
		}).Dial,
		TLSHandshakeTimeout:   5 * time.Second,
		ExpectContinueTimeout: 1 * time.Second,
		MaxIdleConnsPerHost:   1,
		DisableCompression:    true,
		DisableKeepAlives:     true,
		ResponseHeaderTimeout: 5 * time.Second,
	},
	CheckRedirect: func(req *http.Request, via []*http.Request) error {
		return http.ErrUseLastResponse
	},
	Timeout: 10 * time.Second,
}

var (
	// UserAgent default
	UserAgent = "Go Up Checker"
)