diff --git a/app/vmalert/tpl/header.qtpl b/app/vmalert/tpl/header.qtpl
index b5714da29..acc98573d 100644
--- a/app/vmalert/tpl/header.qtpl
+++ b/app/vmalert/tpl/header.qtpl
@@ -2,6 +2,7 @@
     "strings"
     "net/http"
     "path"
+    "net/url"
 
     "github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/utils"
 ) %}
@@ -86,7 +87,11 @@ type NavItem struct {
         <ul class="navbar-nav me-auto mb-2 mb-md-0">
             {% for _, item := range items  %}
                 <li class="nav-item">
-                    <a class="nav-link{% if current == item.Name %} active{% endif %}" href="{%s path.Join(prefix,item.Url) %}">
+                    {% code
+                    u, _ := url.Parse(item.Url)
+                    %}
+                    <a class="nav-link{% if current == item.Name %} active{% endif %}"
+                       href="{% if u.IsAbs() %}{%s item.Url %}{% else %}{%s path.Join(prefix,item.Url) %}{% endif %}">
                         {%s item.Name %}
                     </a>
                 </li>
@@ -94,4 +99,4 @@ type NavItem struct {
         </ul>
   </div>
 </nav>
-{% endfunc %}
\ No newline at end of file
+{% endfunc %}
diff --git a/app/vmalert/tpl/header.qtpl.go b/app/vmalert/tpl/header.qtpl.go
index 6fb6b0483..2caee4cf8 100644
--- a/app/vmalert/tpl/header.qtpl.go
+++ b/app/vmalert/tpl/header.qtpl.go
@@ -7,53 +7,54 @@ package tpl
 //line app/vmalert/tpl/header.qtpl:1
 import (
 	"net/http"
+	"net/url"
 	"path"
 	"strings"
 
 	"github.com/VictoriaMetrics/VictoriaMetrics/app/vmalert/utils"
 )
 
-//line app/vmalert/tpl/header.qtpl:9
+//line app/vmalert/tpl/header.qtpl:10
 import (
 	qtio422016 "io"
 
 	qt422016 "github.com/valyala/quicktemplate"
 )
 
-//line app/vmalert/tpl/header.qtpl:9
+//line app/vmalert/tpl/header.qtpl:10
 var (
 	_ = qtio422016.Copy
 	_ = qt422016.AcquireByteBuffer
 )
 
-//line app/vmalert/tpl/header.qtpl:9
+//line app/vmalert/tpl/header.qtpl:10
 func StreamHeader(qw422016 *qt422016.Writer, r *http.Request, navItems []NavItem, title string) {
-//line app/vmalert/tpl/header.qtpl:9
+//line app/vmalert/tpl/header.qtpl:10
 	qw422016.N().S(`
     `)
-//line app/vmalert/tpl/header.qtpl:10
+//line app/vmalert/tpl/header.qtpl:11
 	prefix := utils.Prefix(r.URL.Path)
 
-//line app/vmalert/tpl/header.qtpl:10
+//line app/vmalert/tpl/header.qtpl:11
 	qw422016.N().S(`
 <!DOCTYPE html>
 <html lang="en">
 <head>
     <title>vmalert`)
-//line app/vmalert/tpl/header.qtpl:14
+//line app/vmalert/tpl/header.qtpl:15
 	if title != "" {
-//line app/vmalert/tpl/header.qtpl:14
+//line app/vmalert/tpl/header.qtpl:15
 		qw422016.N().S(` - `)
-//line app/vmalert/tpl/header.qtpl:14
+//line app/vmalert/tpl/header.qtpl:15
 		qw422016.E().S(title)
-//line app/vmalert/tpl/header.qtpl:14
+//line app/vmalert/tpl/header.qtpl:15
 	}
-//line app/vmalert/tpl/header.qtpl:14
+//line app/vmalert/tpl/header.qtpl:15
 	qw422016.N().S(`</title>
     <link href="`)
-//line app/vmalert/tpl/header.qtpl:15
+//line app/vmalert/tpl/header.qtpl:16
 	qw422016.E().S(prefix)
-//line app/vmalert/tpl/header.qtpl:15
+//line app/vmalert/tpl/header.qtpl:16
 	qw422016.N().S(`static/css/bootstrap.min.css" rel="stylesheet" />
     <style>
         body{
@@ -104,124 +105,139 @@ func StreamHeader(qw422016 *qt422016.Writer, r *http.Request, navItems []NavItem
 </head>
 <body>
     `)
-//line app/vmalert/tpl/header.qtpl:64
+//line app/vmalert/tpl/header.qtpl:65
 	streamprintNavItems(qw422016, r, title, navItems)
-//line app/vmalert/tpl/header.qtpl:64
+//line app/vmalert/tpl/header.qtpl:65
 	qw422016.N().S(`
     <main class="px-2">
 `)
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 }
 
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 func WriteHeader(qq422016 qtio422016.Writer, r *http.Request, navItems []NavItem, title string) {
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 	qw422016 := qt422016.AcquireWriter(qq422016)
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 	StreamHeader(qw422016, r, navItems, title)
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 	qt422016.ReleaseWriter(qw422016)
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 }
 
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 func Header(r *http.Request, navItems []NavItem, title string) string {
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 	qb422016 := qt422016.AcquireByteBuffer()
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 	WriteHeader(qb422016, r, navItems, title)
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 	qs422016 := string(qb422016.B)
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 	qt422016.ReleaseByteBuffer(qb422016)
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 	return qs422016
-//line app/vmalert/tpl/header.qtpl:66
+//line app/vmalert/tpl/header.qtpl:67
 }
 
-//line app/vmalert/tpl/header.qtpl:70
+//line app/vmalert/tpl/header.qtpl:71
 type NavItem struct {
 	Name string
 	Url  string
 }
 
-//line app/vmalert/tpl/header.qtpl:76
+//line app/vmalert/tpl/header.qtpl:77
 func streamprintNavItems(qw422016 *qt422016.Writer, r *http.Request, current string, items []NavItem) {
-//line app/vmalert/tpl/header.qtpl:76
+//line app/vmalert/tpl/header.qtpl:77
 	qw422016.N().S(`
 `)
-//line app/vmalert/tpl/header.qtpl:78
+//line app/vmalert/tpl/header.qtpl:79
 	prefix := "/vmalert/"
 	if strings.HasPrefix(r.URL.Path, prefix) {
 		prefix = ""
 	}
 
-//line app/vmalert/tpl/header.qtpl:82
+//line app/vmalert/tpl/header.qtpl:83
 	qw422016.N().S(`
 <nav class="navbar navbar-expand-md navbar-dark fixed-top bg-dark">
   <div class="container-fluid">
     <div class="collapse navbar-collapse" id="navbarCollapse">
         <ul class="navbar-nav me-auto mb-2 mb-md-0">
             `)
-//line app/vmalert/tpl/header.qtpl:87
+//line app/vmalert/tpl/header.qtpl:88
 	for _, item := range items {
-//line app/vmalert/tpl/header.qtpl:87
+//line app/vmalert/tpl/header.qtpl:88
 		qw422016.N().S(`
                 <li class="nav-item">
+                    `)
+//line app/vmalert/tpl/header.qtpl:91
+		u, _ := url.Parse(item.Url)
+
+//line app/vmalert/tpl/header.qtpl:92
+		qw422016.N().S(`
                     <a class="nav-link`)
-//line app/vmalert/tpl/header.qtpl:89
+//line app/vmalert/tpl/header.qtpl:93
 		if current == item.Name {
-//line app/vmalert/tpl/header.qtpl:89
+//line app/vmalert/tpl/header.qtpl:93
 			qw422016.N().S(` active`)
-//line app/vmalert/tpl/header.qtpl:89
+//line app/vmalert/tpl/header.qtpl:93
 		}
-//line app/vmalert/tpl/header.qtpl:89
-		qw422016.N().S(`" href="`)
-//line app/vmalert/tpl/header.qtpl:89
-		qw422016.E().S(path.Join(prefix, item.Url))
-//line app/vmalert/tpl/header.qtpl:89
+//line app/vmalert/tpl/header.qtpl:93
+		qw422016.N().S(`"
+                       href="`)
+//line app/vmalert/tpl/header.qtpl:94
+		if u.IsAbs() {
+//line app/vmalert/tpl/header.qtpl:94
+			qw422016.E().S(item.Url)
+//line app/vmalert/tpl/header.qtpl:94
+		} else {
+//line app/vmalert/tpl/header.qtpl:94
+			qw422016.E().S(path.Join(prefix, item.Url))
+//line app/vmalert/tpl/header.qtpl:94
+		}
+//line app/vmalert/tpl/header.qtpl:94
 		qw422016.N().S(`">
                         `)
-//line app/vmalert/tpl/header.qtpl:90
+//line app/vmalert/tpl/header.qtpl:95
 		qw422016.E().S(item.Name)
-//line app/vmalert/tpl/header.qtpl:90
+//line app/vmalert/tpl/header.qtpl:95
 		qw422016.N().S(`
                     </a>
                 </li>
             `)
-//line app/vmalert/tpl/header.qtpl:93
+//line app/vmalert/tpl/header.qtpl:98
 	}
-//line app/vmalert/tpl/header.qtpl:93
+//line app/vmalert/tpl/header.qtpl:98
 	qw422016.N().S(`
         </ul>
   </div>
 </nav>
 `)
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 }
 
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 func writeprintNavItems(qq422016 qtio422016.Writer, r *http.Request, current string, items []NavItem) {
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 	qw422016 := qt422016.AcquireWriter(qq422016)
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 	streamprintNavItems(qw422016, r, current, items)
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 	qt422016.ReleaseWriter(qw422016)
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 }
 
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 func printNavItems(r *http.Request, current string, items []NavItem) string {
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 	qb422016 := qt422016.AcquireByteBuffer()
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 	writeprintNavItems(qb422016, r, current, items)
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 	qs422016 := string(qb422016.B)
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 	qt422016.ReleaseByteBuffer(qb422016)
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 	return qs422016
-//line app/vmalert/tpl/header.qtpl:97
+//line app/vmalert/tpl/header.qtpl:102
 }
