diff --git a/examples/customization/external-auth-headers/authsvc/authsvc.go b/examples/customization/external-auth-headers/authsvc/authsvc.go
index 7f254fc83..6453d9401 100644
--- a/examples/customization/external-auth-headers/authsvc/authsvc.go
+++ b/examples/customization/external-auth-headers/authsvc/authsvc.go
@@ -18,17 +18,18 @@ package main
 
 import (
 	"fmt"
-	"math/rand"
 	"net/http"
 	"strconv"
 	"strings"
+
+	"k8s.io/apimachinery/pkg/util/uuid"
 )
 
 // Sample authentication service returning several HTTP headers in response
 func main() {
 	http.HandleFunc("/", func(w http.ResponseWriter, r *http.Request) {
 		if strings.ContainsAny(r.Header.Get("User"), "internal") {
-			w.Header().Add("UserID", strconv.Itoa(rand.Int()))
+			w.Header().Add("UserID", fmt.Sprintf("%v", uuid.NewUUID()))
 			w.Header().Add("UserRole", "admin")
 			w.Header().Add("Other", "not used")
 			fmt.Fprint(w, "ok")
diff --git a/sitemap.xml b/sitemap.xml
index 7ee9e241d..83c23a8af 100644
--- a/sitemap.xml
+++ b/sitemap.xml
@@ -1,203 +1,203 @@
 <?xml version="1.0" encoding="UTF-8"?>
 <urlset xmlns="http://www.sitemaps.org/schemas/sitemap/0.9"><url>
      <loc>https://kubernetes.github.io/ingress-nginx/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/how-it-works/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/troubleshooting/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/kubectl-plugin/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/development/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/deploy/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/deploy/baremetal/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/deploy/rbac/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/deploy/upgrade/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/deploy/hardening-guide/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/basic-usage/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/annotations/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/configmap/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/custom-template/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/nginx-configuration/log-format/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/cli-arguments/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/custom-errors/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/default-backend/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/exposing-tcp-udp-services/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/fcgi-services/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/ingress-path-matching/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/external-articles/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/miscellaneous/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/monitoring/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/multiple-ingress/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/tls/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/third-party-addons/modsecurity/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/user-guide/third-party-addons/opentracing/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/PREREQUISITES/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/affinity/cookie/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/auth/basic/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/auth/client-certs/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/auth/external-auth/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/auth/oauth-external-auth/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/customization/configuration-snippets/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/customization/custom-configuration/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/customization/custom-errors/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/customization/custom-headers/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/customization/external-auth-headers/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/customization/ssl-dh-param/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/customization/sysctl/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/docker-registry/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/grpc/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/multi-tls/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/rewrite/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/static-ip/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/tls-termination/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url><url>
      <loc>https://kubernetes.github.io/ingress-nginx/examples/psp/</loc>
-     <lastmod>2020-12-02</lastmod>
+     <lastmod>2020-12-04</lastmod>
      <changefreq>daily</changefreq>
     </url>
 </urlset>
\ No newline at end of file
diff --git a/sitemap.xml.gz b/sitemap.xml.gz
index 702ca3964..b01ee40f9 100644
Binary files a/sitemap.xml.gz and b/sitemap.xml.gz differ