diff --git a/Makefile b/Makefile
index 9a7f2f5..9c6fd37 100644
--- a/Makefile
+++ b/Makefile
@@ -17,14 +17,14 @@ kill:
 	sudo pkill -9 sower || true
 
 client: build kill
-	sudo $(PWD)/sower -f conf/sower.toml
+	sudo $(PWD)/sower
 
 server: build kill
 	$(PWD)/sower -n TCP -v 1
 
 run: build kill
 	$(PWD)/sower -n TCP -v 1  &
-	sudo $(PWD)/sower -f conf/sower.toml &
+	sudo $(PWD)/sower &
 	@sleep 1
 	curl 127.0.0.1
 	@sleep 1
diff --git a/conf/sower.toml b/conf/sower.toml
index b07c346..665f9fb 100644
--- a/conf/sower.toml
+++ b/conf/sower.toml
@@ -12,6 +12,7 @@ blocklist=[
     "**.goo.gl",
     "**.googleusercontent.com",
     "**.googleapis.com",
+    "*.googlesource.com",
     "**.youtube.com", # youtube
     "**.ytimg.com",
     "**.ggpht.com",
@@ -21,6 +22,7 @@ blocklist=[
     "**.twitter.com", # twitter
     "**.twimg.com",
     "**.blogspot.com", # blogspot
+    "**.appspot.com",
     "**.wikipedia.org", # wikipeida
     "*.cloudfront.net",
 ]
diff --git a/dns/dns.go b/dns/dns.go
index 41d4728..1baa518 100644
--- a/dns/dns.go
+++ b/dns/dns.go
@@ -107,29 +107,29 @@ func (i *intelliSuggest) GetOne(domain interface{}) (iface interface{}, e error)
 
 	for _, port := range i.ports {
 		// give local dial a hand, make it not so easy to be added into suggestions
-		<-util.HTTPPing(addr+port, addr, i.timeout/10)
-		localCh := util.HTTPPing(addr+port, addr, i.timeout)
-		remoteCh := util.HTTPPing(i.listenIP+port, addr, i.timeout)
+		<-util.HTTPPing(net.JoinHostPort(addr, port), addr, i.timeout/50)
+		localCh := util.HTTPPing(net.JoinHostPort(addr, port), addr, i.timeout)
+		remoteCh := util.HTTPPing(net.JoinHostPort(i.listenIP, port), addr, i.timeout)
 
 		select {
 		case err := <-localCh:
 			if err == nil {
-				glog.V(2).Infoln(addr, "local first, succ")
+				glog.V(2).Infoln("PING", addr, "local first, succ")
 				continue
 			}
-			if err = <-remoteCh; err != nil {
-				glog.V(2).Infoln(addr, "local first, all fail")
+			if e := <-remoteCh; e != nil {
+				glog.V(2).Infoln("PING", addr, "local first, all fail:", err)
 				continue
 			}
-			glog.V(2).Infoln(addr, "local first, remote succ")
+			glog.V(2).Infoln("PING", addr, "local first, remote succ")
 			conf.AddSuggest(addr)
 
 		case err := <-remoteCh:
 			if err != nil {
-				glog.V(2).Infoln(addr, "remote first, fail")
+				glog.V(2).Infoln("PING", addr, "remote first, fail:", err)
 				continue
 			}
-			glog.V(2).Infoln(addr, "remote first, succ")
+			glog.V(2).Infoln("PING", addr, "remote first, succ")
 			conf.AddSuggest(addr)
 		}