diff --git a/trunk/src/core/srs_core.hpp b/trunk/src/core/srs_core.hpp
index 4155dbf1e..87dd47de0 100644
--- a/trunk/src/core/srs_core.hpp
+++ b/trunk/src/core/srs_core.hpp
@@ -35,10 +35,10 @@ CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 #define RTMP_SIG_SRS_VERSION VERSION_MAJOR"."VERSION_MINOR"."VERSION_REVISION
 // server info.
 #define RTMP_SIG_SRS_KEY "srs"
-#define RTMP_SIG_SRS_ROLE "origin server"
+#define RTMP_SIG_SRS_ROLE "origin/edge server"
 #define RTMP_SIG_SRS_NAME RTMP_SIG_SRS_KEY"(simple rtmp server)"
-#define RTMP_SIG_SRS_URL "https://"RTMP_SIG_SRS_URL_SHORT
 #define RTMP_SIG_SRS_URL_SHORT "github.com/winlinvip/simple-rtmp-server"
+#define RTMP_SIG_SRS_URL "https://"RTMP_SIG_SRS_URL_SHORT
 #define RTMP_SIG_SRS_WEB "http://blog.csdn.net/win_lin"
 #define RTMP_SIG_SRS_EMAIL "winlin@vip.126.com"
 #define RTMP_SIG_SRS_LICENSE "The MIT License (MIT)"