diff --git a/templates/base/head_navbar.tmpl b/templates/base/head_navbar.tmpl
index 30316e7e5b..390a1fe804 100644
--- a/templates/base/head_navbar.tmpl
+++ b/templates/base/head_navbar.tmpl
@@ -125,7 +125,7 @@
 					<i class="octicon octicon-person"></i> {{.i18n.Tr "register"}}
 				</a>
 			{{end}}
-			<a class="item{{if .PageIsSignIn}} active{{end}}" href="{{AppSubUrl}}/user/login?redirect_to={{.Link}}">
+			<a class="item{{if .PageIsSignIn}} active{{end}}" rel="nofollow" href="{{AppSubUrl}}/user/login?redirect_to={{.Link}}">
 				<i class="octicon octicon-sign-in"></i> {{.i18n.Tr "sign_in"}}
 			</a>
 		</div><!-- end anonymous right menu -->
diff --git a/templates/repo/header.tmpl b/templates/repo/header.tmpl
index 9fb3e32899..111609efef 100644
--- a/templates/repo/header.tmpl
+++ b/templates/repo/header.tmpl
@@ -36,7 +36,7 @@
 					</div>
 					{{if and (not .IsEmpty) ($.Permission.CanRead $.UnitTypeCode)}}
 						<div class="ui labeled button {{if and ($.IsSigned) (not $.CanSignedUserFork)}}disabled-repo-button{{end}}" tabindex="0">
-							<a class="ui compact basic button {{if or (not $.IsSigned) (not $.CanSignedUserFork)}}poping up{{end}}" {{if $.CanSignedUserFork}}href="{{AppSubUrl}}/repo/fork/{{.ID}}"{{else if $.IsSigned}} data-content="{{$.i18n.Tr "repo.fork_from_self"}}" {{ else }} data-content="{{$.i18n.Tr "repo.fork_guest_user" }}" href="{{AppSubUrl}}/user/login?redirect_to={{AppSubUrl}}/repo/fork/{{.ID}}" {{end}} data-position="top center" data-variation="tiny">
+							<a class="ui compact basic button {{if or (not $.IsSigned) (not $.CanSignedUserFork)}}poping up{{end}}" {{if $.CanSignedUserFork}}href="{{AppSubUrl}}/repo/fork/{{.ID}}"{{else if $.IsSigned}} data-content="{{$.i18n.Tr "repo.fork_from_self"}}" {{ else }} data-content="{{$.i18n.Tr "repo.fork_guest_user" }}" rel="nofollow" href="{{AppSubUrl}}/user/login?redirect_to={{AppSubUrl}}/repo/fork/{{.ID}}" {{end}} data-position="top center" data-variation="tiny">
 								<i class="octicon octicon-repo-forked"></i>{{$.i18n.Tr "repo.fork"}}
 							</a>
 							<a class="ui basic label" href="{{.Link}}/forks">
diff --git a/templates/user/auth/signin_navbar.tmpl b/templates/user/auth/signin_navbar.tmpl
index 3f0db26713..345e221296 100644
--- a/templates/user/auth/signin_navbar.tmpl
+++ b/templates/user/auth/signin_navbar.tmpl
@@ -1,9 +1,9 @@
 {{if .EnableOpenIDSignIn}}
 <div class="ui secondary pointing tabular top attached borderless menu new-menu navbar">
-	<a class="{{if .PageIsLogin}}active{{end}} item" href="{{AppSubUrl}}/user/login">
+	<a class="{{if .PageIsLogin}}active{{end}} item" rel="nofollow" href="{{AppSubUrl}}/user/login">
 		{{.i18n.Tr "auth.login_userpass"}}
 	</a>
-	<a class="{{if .PageIsLoginOpenID}}active{{end}} item" href="{{AppSubUrl}}/user/login/openid">
+	<a class="{{if .PageIsLoginOpenID}}active{{end}} item" rel="nofollow" href="{{AppSubUrl}}/user/login/openid">
 		<i class="fa fa-openid"></i>
 		&nbsp;OpenID
 	</a>