diff --git a/pkg/middlewares/redirect/redirect.go b/pkg/middlewares/redirect/redirect.go
index d2783d1bc..e09611e37 100644
--- a/pkg/middlewares/redirect/redirect.go
+++ b/pkg/middlewares/redirect/redirect.go
@@ -15,6 +15,8 @@ const (
 	schemeHTTPS = "https"
 )
 
+var uriRegexp = regexp.MustCompile(`^(https?):\/\/(\[[\w:.]+\]|[\w\._-]+)?(:\d+)?(.*)$`)
+
 type redirect struct {
 	next        http.Handler
 	regex       *regexp.Regexp
diff --git a/pkg/middlewares/redirect/redirect_regex.go b/pkg/middlewares/redirect/redirect_regex.go
index f26b5e3d4..bc4ae3843 100644
--- a/pkg/middlewares/redirect/redirect_regex.go
+++ b/pkg/middlewares/redirect/redirect_regex.go
@@ -3,7 +3,6 @@ package redirect
 import (
 	"context"
 	"net/http"
-	"regexp"
 	"strings"
 
 	"github.com/traefik/traefik/v2/pkg/config/dynamic"
@@ -11,9 +10,7 @@ import (
 	"github.com/traefik/traefik/v2/pkg/middlewares"
 )
 
-const (
-	typeRegexName = "RedirectRegex"
-)
+const typeRegexName = "RedirectRegex"
 
 // NewRedirectRegex creates a redirect middleware.
 func NewRedirectRegex(ctx context.Context, next http.Handler, conf dynamic.RedirectRegex, name string) (http.Handler, error) {
@@ -30,10 +27,7 @@ func rawURL(req *http.Request) string {
 	port := ""
 	uri := req.RequestURI
 
-	schemeRegex := `^(https?):\/\/(\[[\w:.]+\]|[\w\._-]+)?(:\d+)?(.*)$`
-	re, _ := regexp.Compile(schemeRegex)
-	if re.Match([]byte(req.RequestURI)) {
-		match := re.FindStringSubmatch(req.RequestURI)
+	if match := uriRegexp.FindStringSubmatch(req.RequestURI); len(match) > 0 {
 		scheme = match[1]
 
 		if len(match[2]) > 0 {
diff --git a/pkg/middlewares/redirect/redirect_scheme.go b/pkg/middlewares/redirect/redirect_scheme.go
index 36bcb25fd..00e30b8b4 100644
--- a/pkg/middlewares/redirect/redirect_scheme.go
+++ b/pkg/middlewares/redirect/redirect_scheme.go
@@ -5,7 +5,6 @@ import (
 	"errors"
 	"net"
 	"net/http"
-	"regexp"
 	"strings"
 
 	"github.com/traefik/traefik/v2/pkg/config/dynamic"
@@ -14,8 +13,8 @@ import (
 )
 
 const (
-	typeSchemeName      = "RedirectScheme"
-	schemeRedirectRegex = `^(https?:\/\/)?(\[[\w:.]+\]|[\w\._-]+)?(:\d+)?(.*)$`
+	typeSchemeName = "RedirectScheme"
+	uriPattern     = `^(https?:\/\/)?(\[[\w:.]+\]|[\w\._-]+)?(:\d+)?(.*)$`
 )
 
 // NewRedirectScheme creates a new RedirectScheme middleware.
@@ -33,7 +32,7 @@ func NewRedirectScheme(ctx context.Context, next http.Handler, conf dynamic.Redi
 		port = ":" + conf.Port
 	}
 
-	return newRedirect(next, schemeRedirectRegex, conf.Scheme+"://${2}"+port+"${4}", conf.Permanent, rawURLScheme, name)
+	return newRedirect(next, uriPattern, conf.Scheme+"://${2}"+port+"${4}", conf.Permanent, rawURLScheme, name)
 }
 
 func rawURLScheme(req *http.Request) string {
@@ -46,10 +45,7 @@ func rawURLScheme(req *http.Request) string {
 	}
 	uri := req.RequestURI
 
-	schemeRegex := `^(https?):\/\/(\[[\w:.]+\]|[\w\._-]+)?(:\d+)?(.*)$`
-	re, _ := regexp.Compile(schemeRegex)
-	if re.Match([]byte(req.RequestURI)) {
-		match := re.FindStringSubmatch(req.RequestURI)
+	if match := uriRegexp.FindStringSubmatch(req.RequestURI); len(match) > 0 {
 		scheme = match[1]
 
 		if len(match[2]) > 0 {