diff --git a/dnsexit_manager.go b/dnsexit_manager.go
index ac28b26..ad3a861 100644
--- a/dnsexit_manager.go
+++ b/dnsexit_manager.go
@@ -37,8 +37,8 @@ type dnsexitDTO struct {
 func convertInterfaceSliceToStruct(slice []interface{}) *[]dns.Record {
 	var domains []dns.Record
 
-	for _, domain := range slice {
-		fmt.Println(domain)
+	for k, domain := range slice {
+		fmt.Println(k, domain)
 	}
 
 	return &domains
@@ -142,7 +142,7 @@ func (c *client) UpdateRecord(rec *dns.Record) (error, *dns.Response) {
 }
 
 func (c *client) GetRecords() (error, *[]dns.Record) {
-	var subdomains = CreateSet()
+	var subdomains = NewRecordSet()
 	var wg sync.WaitGroup
 
 	result_chan := make(chan []*dns.Record)
@@ -179,11 +179,10 @@ func (c *client) GetRecords() (error, *[]dns.Record) {
 		select {
 		case records, ok := <-result_chan:
 			if !ok {
-				records_new := convertInterfaceSliceToStruct(subdomains.List())
-				return nil, records_new
+				return nil, subdomains.List()
 			}
 
-			for record := range records {
+			for _, record := range records {
 				subdomains.Add(record)
 			}
 		case _, _ = <-err_chan:
diff --git a/go.mod b/go.mod
index fa0839d..cde9f41 100644
--- a/go.mod
+++ b/go.mod
@@ -3,11 +3,14 @@ module git.uoc.run.place/OxFF/dnsexit-manager
 go 1.23.4
 
 require (
-	git.uoc.run.place/OxFF/dns-manager v0.0.0-20250114185820-a31877a751b9 // indirect
-	github.com/miekg/dns v1.1.62 // indirect
-	golang.org/x/mod v0.18.0 // indirect
-	golang.org/x/net v0.27.0 // indirect
-	golang.org/x/sync v0.7.0 // indirect
-	golang.org/x/sys v0.22.0 // indirect
-	golang.org/x/tools v0.22.0 // indirect
+	git.uoc.run.place/OxFF/dns-manager v0.0.2
+	github.com/miekg/dns v1.1.62
+)
+
+require (
+	golang.org/x/mod v0.22.0 // indirect
+	golang.org/x/net v0.34.0 // indirect
+	golang.org/x/sync v0.10.0 // indirect
+	golang.org/x/sys v0.29.0 // indirect
+	golang.org/x/tools v0.29.0 // indirect
 )
diff --git a/set.go b/set.go
index 2762ad9..9023b23 100644
--- a/set.go
+++ b/set.go
@@ -1,32 +1,35 @@
 package dnsexit_manager
 
-type Set struct {
-	elements map[interface{}]struct{}
+import dns "git.uoc.run.place/OxFF/dns-manager"
+
+type RecordSet struct {
+	records map[dns.Record]struct{}
 }
 
-func CreateSet() *Set {
-	return &Set{
-		elements: make(map[interface{}]struct{}),
+func NewRecordSet() *RecordSet {
+	return &RecordSet{
+		records: make(map[dns.Record]struct{}),
 	}
 }
 
-func (set *Set) Add(value interface{}) {
-	_, found := set.elements[value]
-
-	if !found {
-		set.elements[value] = struct{}{}
-	}
+func (s *RecordSet) Add(record *dns.Record) {
+	s.records[*record] = struct{}{}
 }
 
-func (set *Set) Delete(value interface{}) {
-	delete(set.elements, value)
+func (s *RecordSet) Remove(record dns.Record) {
+	delete(s.records, record)
 }
 
-func (set *Set) List() []interface{} {
-	keys := make([]interface{}, 0, len(set.elements))
-	for _, key := range set.elements {
-		keys = append(keys, key)
+func (s *RecordSet) Contains(record *dns.Record) bool {
+	_, exists := s.records[*record]
+	return exists
+}
+
+func (s *RecordSet) List() *[]dns.Record {
+	records := make([]dns.Record, 0, len(s.records))
+	for record := range s.records {
+		records = append(records, record)
 	}
 
-	return keys
+	return &records
 }