diff --git a/index.html b/index.html
index a949b12..58469be 100644
--- a/index.html
+++ b/index.html
@@ -2,6 +2,10 @@
 
 #https://github.com/acmesh-official/get.acme.sh
 
+if ! curl -I --connect-timeout 1 -m 3 -s https://t.co > /dev/null ;then
+GHPROXY=https://ghproxy.com/
+fi
+
 _exists() {
   cmd="$1"
   if [ -z "$cmd" ] ; then
@@ -29,10 +33,13 @@
   _email="--$(echo "$_email" | tr '=' ' ')"
 fi
 
+PROJECT=${ACME_GIT-"acmesh-official/acme.sh"}
+URL=${GHPROXY}https://raw.githubusercontent.com/$PROJECT/$BRANCH/acme.sh
+
 if _exists curl && [ "${ACME_USE_WGET:-0}" = "0" ]; then
-  curl https://raw.githubusercontent.com/acmesh-official/acme.sh/$BRANCH/acme.sh | sh -s -- --install-online $_email "$@"
+  curl $URL | sh -s -- --install-online $_email "$@"
 elif _exists wget ; then
-  wget -O -  https://raw.githubusercontent.com/acmesh-official/acme.sh/$BRANCH/acme.sh | sh -s -- --install-online $_email "$@"
+  wget -O - $URL | sh -s -- --install-online $_email "$@"
 else
   echo "Sorry, you must have curl or wget installed first."
   echo "Please install either of them and try again."