diff --git a/go.mod b/go.mod
index be902f3..c0794dc 100644
--- a/go.mod
+++ b/go.mod
@@ -3,7 +3,7 @@ module autoLogin
 go 1.16
 
 require (
-	github.com/Mmx233/tool v0.2.2
+	github.com/Mmx233/tool v0.2.3
 	github.com/PuerkitoBio/goquery v1.7.1 // indirect
 	golang.org/x/net v0.0.0-20210917221730-978cfadd31cf // indirect
 )
diff --git a/go.sum b/go.sum
index e8dda23..ba66680 100644
--- a/go.sum
+++ b/go.sum
@@ -1,5 +1,5 @@
-github.com/Mmx233/tool v0.2.2 h1:1Sa/f0a4dZoXiCa12W1O3pItsRgl+qLOhItoGNBO8Do=
-github.com/Mmx233/tool v0.2.2/go.mod h1:un5MCoI21lH40fFI5S9++aja8nJb+2sjATak7PnGMZ0=
+github.com/Mmx233/tool v0.2.3 h1:fnjkYrX6Zhc0vcyPF5ihnxkNjXQ8zeAoG1Xm6xo7aBE=
+github.com/Mmx233/tool v0.2.3/go.mod h1:un5MCoI21lH40fFI5S9++aja8nJb+2sjATak7PnGMZ0=
 github.com/PuerkitoBio/goquery v1.7.1 h1:oE+T06D+1T7LNrn91B4aERsRIeCLJ/oPSa6xB9FPnz4=
 github.com/PuerkitoBio/goquery v1.7.1/go.mod h1:XY0pP4kfraEmmV1O7Uf6XyjoslwsneBbgeDjLYuN8xY=
 github.com/andybalholm/cascadia v1.2.0 h1:vuRCkM5Ozh/BfmsaTm26kbjm0mIOM3yS5Ek/F5h18aE=
diff --git a/util/checker.go b/util/checker.go
index 3a94d91..9ccd125 100644
--- a/util/checker.go
+++ b/util/checker.go
@@ -1,22 +1,17 @@
 package util
 
-import (
-	"context"
-	"net"
-)
+import "github.com/Mmx233/tool"
 
 type checker struct{}
 
 var Checker checker
 
 func (checker) NetOk() bool {
-	r := &net.Resolver{ //指定DNS，防止本地DNS缓存影响
-		PreferGo: true,
-		Dial:     NetDailEr(),
-	}
-	if ip, err := r.LookupIP(context.Background(), "ip4", "www.msftconnecttest.com"); err != nil { //通过DNS确认是否在线
-		return false
-	} else if len(ip) == 0 || ip[0].String() != "13.107.4.52" {
+	h, _, e := tool.HTTP.GetBytes(&tool.GetRequest{
+		Url:      "https://www.baidu.com/",
+		Redirect: false,
+	})
+	if e != nil || h.Get("Location") != "" {
 		return false
 	}
 	return true
diff --git a/util/init.go b/util/init.go
index 9b1d214..af6ed92 100644
--- a/util/init.go
+++ b/util/init.go
@@ -3,8 +3,10 @@ package util
 import (
 	"autoLogin/global"
 	"autoLogin/models"
+	"github.com/Mmx233/tool"
 	"log"
 	"os"
+	"time"
 )
 
 func init() {
@@ -31,4 +33,7 @@ func init() {
 	_ = File.WriteJson(Path, c.FillDefault())
 
 	global.Config = &c
+
+	//http工具设定
+	tool.HTTP.Options.Timeout = 3 * time.Second
 }
diff --git a/util/util.go b/util/util.go
index 53656de..6f7b60f 100644
--- a/util/util.go
+++ b/util/util.go
@@ -1,16 +1,12 @@
 package util
 
 import (
-	"autoLogin/global"
-	"context"
 	"crypto/md5"
 	"crypto/sha1"
 	"errors"
 	"fmt"
 	"io"
-	"net"
 	"regexp"
-	"time"
 )
 
 func Search(reg string, content string) (string, error) {
@@ -49,12 +45,3 @@ func Sha1(content string) string {
 	bs := h.Sum(nil)
 	return fmt.Sprintf("%x\n", bs)
 }
-
-func NetDailEr() func(ctx context.Context, network, address string) (net.Conn, error) {
-	return func(ctx context.Context, network, address string) (net.Conn, error) {
-		d := net.Dialer{
-			Deadline: time.Now().Add(5 * time.Second),
-		}
-		return d.DialContext(ctx, "udp", global.Config.Settings.Dns+":53")
-	}
-}