diff --git a/app/cache/cache.go b/app/cache/cache.go
index 8b49289..ad25008 100644
--- a/app/cache/cache.go
+++ b/app/cache/cache.go
@@ -13,10 +13,10 @@ var c = cache.New(cache.NoExpiration, 10*time.Minute)
 func GetProxies(key string) proxy.ProxyList {
 	result, found := c.Get(key)
 	if found {
-		log.Println(len(result.(proxy.ProxyList)))
+		log.Println("found cache for:", key, "length:", len(result.(proxy.ProxyList)))
 		return result.(proxy.ProxyList)
 	}
-	log.Println("Cache not found")
+	log.Println("cache not found:", key)
 	return nil
 }
 
diff --git a/app/task.go b/app/task.go
index aea607c..d29e0d0 100644
--- a/app/task.go
+++ b/app/task.go
@@ -43,13 +43,8 @@ func CrawlGo() {
 	cache.SetProxies("allproxies", proxies)
 
 	// 可用性检测
-	proxiesUseful := proxy.CleanProxies(provider.Clash{Proxies: proxies}.CleanProxies())
-	proxies = make(proxy.ProxyList, len(proxiesUseful))
-	copy(proxies, proxiesUseful)
-
+	proxies = proxy.CleanProxies(provider.Clash{Proxies: proxies}.CleanProxies())
 	log.Println("CrawlGo clash useable node count:", len(proxies))
-
-	// 排序和重命名
 	proxies.NameAddCounrty().Sort().NameAddIndex()
 	cache.SetProxies("proxies", proxies)
 
diff --git a/proxy/base.go b/proxy/base.go
index 069713d..4d50040 100644
--- a/proxy/base.go
+++ b/proxy/base.go
@@ -23,6 +23,11 @@ func (b *Base) BaseInfo() *Base {
 	return b
 }
 
+func (b *Base) Clone() Base {
+	c := *b
+	return c
+}
+
 type Proxy interface {
 	String() string
 	ToClash() string
@@ -31,4 +36,5 @@ type Proxy interface {
 	SetName(name string)
 	TypeName() string
 	BaseInfo() *Base
+	Clone() Proxy
 }
diff --git a/proxy/check.go b/proxy/check.go
index 06e080a..559c726 100644
--- a/proxy/check.go
+++ b/proxy/check.go
@@ -52,7 +52,7 @@ func CleanProxies(proxies []Proxy) (cproxies []Proxy) {
 	cproxies = make([]Proxy, 0)
 	for _, p := range proxies {
 		if _, ok := okMap[p.Identifier()]; ok {
-			cproxies = append(cproxies, p)
+			cproxies = append(cproxies, p.Clone())
 		}
 	}
 	return
diff --git a/proxy/proxies.go b/proxy/proxies.go
index c19fa73..34f0d27 100644
--- a/proxy/proxies.go
+++ b/proxy/proxies.go
@@ -71,3 +71,13 @@ func Deduplication(src ProxyList) ProxyList {
 	}
 	return result
 }
+
+func (ps ProxyList) Clone() ProxyList {
+	result := make(ProxyList, 0, len(ps))
+	for _, pp := range ps {
+		if pp != nil {
+			result = append(result, pp.Clone())
+		}
+	}
+	return result
+}
diff --git a/proxy/shadowsocks.go b/proxy/shadowsocks.go
index 12a593a..ef362ba 100644
--- a/proxy/shadowsocks.go
+++ b/proxy/shadowsocks.go
@@ -61,6 +61,11 @@ func (ss Shadowsocks) ToSurge() string {
 	}
 }
 
+func (ss Shadowsocks) Clone() Proxy {
+	tmp := ss
+	return &tmp
+}
+
 func ParseSSLink(link string) (*Shadowsocks, error) {
 	if !strings.HasPrefix(link, "ss://") {
 		return nil, ErrorNotSSRLink
diff --git a/proxy/shadowsocksr.go b/proxy/shadowsocksr.go
index b8e5cb3..886805e 100644
--- a/proxy/shadowsocksr.go
+++ b/proxy/shadowsocksr.go
@@ -57,6 +57,11 @@ func (ssr ShadowsocksR) ToSurge() string {
 	return ""
 }
 
+func (ssr ShadowsocksR) Clone() Proxy {
+	tmp := ssr
+	return &tmp
+}
+
 func ParseSSRLink(link string) (*ShadowsocksR, error) {
 	if !strings.HasPrefix(link, "ssr") {
 		return nil, ErrorNotSSRLink
diff --git a/proxy/vmess.go b/proxy/vmess.go
index 5d5356a..066896d 100644
--- a/proxy/vmess.go
+++ b/proxy/vmess.go
@@ -82,6 +82,11 @@ func (v Vmess) ToSurge() string {
 	}
 }
 
+func (v Vmess) Clone() Proxy {
+	tmp := v
+	return &tmp
+}
+
 type vmessLinkJson struct {
 	Add  string      `json:"add"`
 	V    string      `json:"v"`