diff --git a/app/router/condition.go b/app/router/condition.go
index ea09a560..1d43e536 100644
--- a/app/router/condition.go
+++ b/app/router/condition.go
@@ -83,21 +83,6 @@ func NewMphMatcherGroup(domains []*Domain) (*DomainMatcher, error) {
 	}, nil
 }
 
-func NewDomainMatcher(domains []*Domain) (*DomainMatcher, error) {
-	g := new(strmatcher.MatcherGroup)
-	for _, d := range domains {
-		m, err := domainToMatcher(d)
-		if err != nil {
-			return nil, err
-		}
-		g.Add(m)
-	}
-
-	return &DomainMatcher{
-		matchers: g,
-	}, nil
-}
-
 func (m *DomainMatcher) ApplyDomain(domain string) bool {
 	return len(m.matchers.Match(strings.ToLower(domain))) > 0
 }
diff --git a/app/router/condition_test.go b/app/router/condition_test.go
index a5e54770..7e90351a 100644
--- a/app/router/condition_test.go
+++ b/app/router/condition_test.go
@@ -328,9 +328,6 @@ func TestChinaSites(t *testing.T) {
 	domains, err := loadGeoSite("CN")
 	common.Must(err)
 
-	matcher, err := NewDomainMatcher(domains)
-	common.Must(err)
-
 	acMatcher, err := NewMphMatcherGroup(domains)
 	common.Must(err)
 
@@ -362,12 +359,9 @@ func TestChinaSites(t *testing.T) {
 	}
 
 	for _, testCase := range testCases {
-		r1 := matcher.ApplyDomain(testCase.Domain)
-		r2 := acMatcher.ApplyDomain(testCase.Domain)
-		if r1 != testCase.Output {
-			t.Error("DomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r1)
-		} else if r2 != testCase.Output {
-			t.Error("ACDomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r2)
+		r := acMatcher.ApplyDomain(testCase.Domain)
+		if r != testCase.Output {
+			t.Error("ACDomainMatcher expected output ", testCase.Output, " for domain ", testCase.Domain, " but got ", r)
 		}
 	}
 }
@@ -414,48 +408,6 @@ func BenchmarkMphDomainMatcher(b *testing.B) {
 	}
 }
 
-func BenchmarkDomainMatcher(b *testing.B) {
-	domains, err := loadGeoSite("CN")
-	common.Must(err)
-
-	matcher, err := NewDomainMatcher(domains)
-	common.Must(err)
-
-	type TestCase struct {
-		Domain string
-		Output bool
-	}
-	testCases := []TestCase{
-		{
-			Domain: "163.com",
-			Output: true,
-		},
-		{
-			Domain: "163.com",
-			Output: true,
-		},
-		{
-			Domain: "164.com",
-			Output: false,
-		},
-		{
-			Domain: "164.com",
-			Output: false,
-		},
-	}
-
-	for i := 0; i < 1024; i++ {
-		testCases = append(testCases, TestCase{Domain: strconv.Itoa(i) + ".not-exists.com", Output: false})
-	}
-
-	b.ResetTimer()
-	for i := 0; i < b.N; i++ {
-		for _, testCase := range testCases {
-			_ = matcher.ApplyDomain(testCase.Domain)
-		}
-	}
-}
-
 func BenchmarkMultiGeoIPMatcher(b *testing.B) {
 	var geoips []*GeoIP