仅供参考，调用的whois.263.tw

//获取域名whois
func GetDomainInfoHtml(domain string) (string, error) {
	req := httplib.Get("https://whois.263.tw/"+domain).SetTimeout(20*time.Second, 20*time.Second).SetProxy(func(*http.Request) (*url.URL, error) { return url.Parse("http://127.0.0.1:10809") })
	htmlStr, err := req.String()
	return htmlStr, err
}

htmlStr, err := GetDomainInfoHtml(v.Host)
				if err != nil {
					fmt.Println("请求失败", err.Error())
					
				}
				if strings.Contains(htmlStr, "No matching record.") {
					fmt.Println("api未支持此域名查询")
					
				}

				if strings.Contains(htmlStr, "No match for") {
					fmt.Println("可注册")
					
				}

				if strings.Contains(htmlStr, "Domain Status") {
					doc, err := goquery.NewDocumentFromReader(bytes.NewBufferString(htmlStr))
					if err != nil {
						fmt.Println("创建goquery失败", err.Error())
					} else {
						whoisStr := doc.Find("pre").Text()
						// fmt.Println(whoisStr)

						re1 := regexp.MustCompile(`Registry Expiry Date: (.*)Z`)
						expiryDate := strings.ReplaceAll(re1.FindString(whoisStr), "Registry Expiry Date: ", "")
						// fmt.Println(expiryDate)

						re2 := regexp.MustCompile(`Creation Date: (.*)Z`)
						createDate := strings.ReplaceAll(re2.FindString(whoisStr), "Creation Date: ", "")

						re3 := regexp.MustCompile(`Registrar URL: (.*)`)
						registrarUrl := strings.ReplaceAll(re3.FindString(whoisStr), "Registrar URL: ", "")
						registrarUrl = strings.ReplaceAll(registrarUrl, "\n", "")

						
					}
					
				}