diff --git a/acme/acme.go b/acme/acme.go
index 85599bc3e..492439d83 100644
--- a/acme/acme.go
+++ b/acme/acme.go
@@ -9,6 +9,7 @@ import (
 	fmtlog "log"
 	"net"
 	"net/http"
+	"net/url"
 	"reflect"
 	"strings"
 	"time"
@@ -183,7 +184,8 @@ func (a *ACME) leadershipListener(elected bool) error {
 		account := object.(*Account)
 		account.Init()
 		// Reset Account values if caServer changed, thus registration URI can be updated
-		if account != nil && account.Registration != nil && !strings.HasPrefix(account.Registration.URI, a.CAServer) {
+		if account != nil && account.Registration != nil && !isAccountMatchingCaServer(account.Registration.URI, a.CAServer) {
+			log.Info("Account URI does not match the current CAServer. The account will be reset")
 			account.reset()
 		}
 
@@ -230,6 +232,20 @@ func (a *ACME) leadershipListener(elected bool) error {
 	return nil
 }
 
+func isAccountMatchingCaServer(accountURI string, serverURI string) bool {
+	aru, err := url.Parse(accountURI)
+	if err != nil {
+		log.Infof("Unable to parse account.Registration URL : %v", err)
+		return false
+	}
+	cau, err := url.Parse(serverURI)
+	if err != nil {
+		log.Infof("Unable to parse CAServer URL : %v", err)
+		return false
+	}
+	return cau.Hostname() == aru.Hostname()
+}
+
 func (a *ACME) getCertificate(clientHello *tls.ClientHelloInfo) (*tls.Certificate, error) {
 	domain := types.CanonicalDomain(clientHello.ServerName)
 	account := a.store.Get().(*Account)
diff --git a/provider/acme/provider.go b/provider/acme/provider.go
index 7c6beb97a..57377cfd2 100644
--- a/provider/acme/provider.go
+++ b/provider/acme/provider.go
@@ -6,6 +6,7 @@ import (
 	"fmt"
 	"io/ioutil"
 	fmtlog "log"
+	"net/url"
 	"reflect"
 	"strings"
 	"sync"
@@ -130,7 +131,8 @@ func (p *Provider) Init(_ types.Constraints) error {
 	}
 
 	// Reset Account if caServer changed, thus registration URI can be updated
-	if p.account != nil && p.account.Registration != nil && !strings.HasPrefix(p.account.Registration.URI, p.CAServer) {
+	if p.account != nil && p.account.Registration != nil && !isAccountMatchingCaServer(p.account.Registration.URI, p.CAServer) {
+		log.Info("Account URI does not match the current CAServer. The account will be reset")
 		p.account = nil
 	}
 
@@ -142,6 +144,20 @@ func (p *Provider) Init(_ types.Constraints) error {
 	return nil
 }
 
+func isAccountMatchingCaServer(accountURI string, serverURI string) bool {
+	aru, err := url.Parse(accountURI)
+	if err != nil {
+		log.Infof("Unable to parse account.Registration URL : %v", err)
+		return false
+	}
+	cau, err := url.Parse(serverURI)
+	if err != nil {
+		log.Infof("Unable to parse CAServer URL : %v", err)
+		return false
+	}
+	return cau.Hostname() == aru.Hostname()
+}
+
 // Provide allows the file provider to provide configurations to traefik
 // using the given Configuration channel.
 func (p *Provider) Provide(configurationChan chan<- types.ConfigMessage, pool *safe.Pool) error {
diff --git a/provider/acme/provider_test.go b/provider/acme/provider_test.go
index 047f4058f..869b916fb 100644
--- a/provider/acme/provider_test.go
+++ b/provider/acme/provider_test.go
@@ -429,3 +429,78 @@ func TestDeleteUnnecessaryDomains(t *testing.T) {
 		})
 	}
 }
+
+func TestIsAccountMatchingCaServer(t *testing.T) {
+	testCases := []struct {
+		desc       string
+		accountURI string
+		serverURI  string
+		expected   bool
+	}{
+		{
+			desc:       "acme staging with matching account",
+			accountURI: "https://acme-staging-v02.api.letsencrypt.org/acme/acct/1234567",
+			serverURI:  "https://acme-staging-v02.api.letsencrypt.org/acme/directory",
+			expected:   true,
+		},
+		{
+			desc:       "acme production with matching account",
+			accountURI: "https://acme-v02.api.letsencrypt.org/acme/acct/1234567",
+			serverURI:  "https://acme-v02.api.letsencrypt.org/acme/directory",
+			expected:   true,
+		},
+		{
+			desc:       "http only acme with matching account",
+			accountURI: "http://acme.api.letsencrypt.org/acme/acct/1234567",
+			serverURI:  "http://acme.api.letsencrypt.org/acme/directory",
+			expected:   true,
+		},
+		{
+			desc:       "different subdomains for account and server",
+			accountURI: "https://test1.example.org/acme/acct/1234567",
+			serverURI:  "https://test2.example.org/acme/directory",
+			expected:   false,
+		},
+		{
+			desc:       "different domains for account and server",
+			accountURI: "https://test.example1.org/acme/acct/1234567",
+			serverURI:  "https://test.example2.org/acme/directory",
+			expected:   false,
+		},
+		{
+			desc:       "different tld for account and server",
+			accountURI: "https://test.example.com/acme/acct/1234567",
+			serverURI:  "https://test.example.org/acme/directory",
+			expected:   false,
+		},
+		{
+			desc:       "malformed account url",
+			accountURI: "//|\\/test.example.com/acme/acct/1234567",
+			serverURI:  "https://test.example.com/acme/directory",
+			expected:   false,
+		},
+		{
+			desc:       "malformed server url",
+			accountURI: "https://test.example.com/acme/acct/1234567",
+			serverURI:  "//|\\/test.example.com/acme/directory",
+			expected:   false,
+		},
+		{
+			desc:       "malformed server and account url",
+			accountURI: "//|\\/test.example.com/acme/acct/1234567",
+			serverURI:  "//|\\/test.example.com/acme/directory",
+			expected:   false,
+		},
+	}
+
+	for _, test := range testCases {
+		test := test
+		t.Run(test.desc, func(t *testing.T) {
+			t.Parallel()
+
+			result := isAccountMatchingCaServer(test.accountURI, test.serverURI)
+
+			assert.Equal(t, test.expected, result)
+		})
+	}
+}