diff --git a/.gitlab-ci.yml b/.gitlab-ci.yml
index 7b6a2f2..d9e3aa5 100644
--- a/.gitlab-ci.yml
+++ b/.gitlab-ci.yml
@@ -53,4 +53,23 @@ dealsbot:
   stage: build
   variables:
     GO_CMD: dealsbot
-  <<: *docker_build
\ No newline at end of file
+  <<: *docker_build
+
+domaincheckbot:
+  stage: build
+  variables:
+    GO_CMD: domaincheckbot
+  <<: *docker_build
+
+pages:
+  stage: build
+  script:
+    - mkdir public
+    - cp cmd/domaincheckbot/config/domains.json public/
+  artifacts:
+    paths:
+      - public
+  rules:
+    - if: $CI_COMMIT_BRANCH
+      changes:
+        - cmd/domaincheckbot/config/domains.json
\ No newline at end of file
diff --git a/cmd/domaincheckadd/main.go b/cmd/domaincheckadd/main.go
new file mode 100644
index 0000000..747e76f
--- /dev/null
+++ b/cmd/domaincheckadd/main.go
@@ -0,0 +1,78 @@
+package main
+
+import (
+	"bufio"
+	"encoding/json"
+	"fmt"
+	"grow.rievo.dev/discordBots/cmd/domaincheckbot/config"
+	"log"
+	"os"
+	"sort"
+	"strings"
+)
+
+func main() {
+	log.Println("add domains to domains.json")
+
+	scanner := bufio.NewScanner(os.Stdin)
+
+	var newDomains []string
+
+	fmt.Print("domains: ")
+	if scanner.Scan() {
+
+		input := scanner.Text()
+
+		values := strings.Split(input, ",")
+
+		// trim space
+		for i := range values {
+			values[i] = strings.TrimSpace(values[i])
+		}
+
+		// remove empty
+		values = removeEmpty(values)
+
+		// sort
+		sort.SliceStable(values, func(i, j int) bool {
+			return values[i] < values[j]
+		})
+
+		newDomains = values
+	}
+	log.Printf("domains to add: %v\n", newDomains)
+
+	fmt.Print("add to domains.json? [y|N]: ")
+	if scanner.Scan() {
+		input := scanner.Text()
+		if input == "y" || input == "Y" {
+			err := storeDomains(newDomains)
+			if err != nil {
+				log.Fatal("failed storing domains.json")
+			}
+			fmt.Println("domains.json updated")
+		} else {
+			fmt.Println("canceled!")
+		}
+	}
+
+}
+
+func storeDomains(domains []string) error {
+	for _, domain := range domains {
+		config.AddDomain(domain)
+	}
+	file, _ := json.MarshalIndent(config.Domains, "", "  ")
+	err := os.WriteFile("./cmd/domaincheckbot/config/domain.json", file, 0644)
+	return err
+}
+
+func removeEmpty(sliceList []string) []string {
+	var list []string
+	for _, str := range sliceList {
+		if str != "" {
+			list = append(list, str)
+		}
+	}
+	return list
+}
diff --git a/cmd/domaincheckbot/config/domain.go b/cmd/domaincheckbot/config/domain.go
new file mode 100644
index 0000000..c34a269
--- /dev/null
+++ b/cmd/domaincheckbot/config/domain.go
@@ -0,0 +1,40 @@
+package config
+
+import (
+	_ "embed"
+	"encoding/json"
+	"github.com/disgoorg/log"
+	"sort"
+)
+
+//go:embed domain.json
+var domainsFiles []byte
+
+var Domains []string
+
+func init() {
+	err := json.Unmarshal(domainsFiles, &Domains)
+	if err != nil {
+		log.Fatal(err)
+	}
+}
+
+func AddDomain(domain string) {
+	domains := append(Domains, domain)
+	sort.SliceStable(domains, func(i, j int) bool {
+		return domains[i] < domains[j]
+	})
+	Domains = removeDuplicate(domains)
+}
+
+func removeDuplicate[T string](sliceList []T) []T {
+	allKeys := make(map[T]bool)
+	var list []T
+	for _, item := range sliceList {
+		if _, value := allKeys[item]; !value {
+			allKeys[item] = true
+			list = append(list, item)
+		}
+	}
+	return list
+}
diff --git a/cmd/domaincheckbot/config/domain.json b/cmd/domaincheckbot/config/domain.json
new file mode 100644
index 0000000..2e49160
--- /dev/null
+++ b/cmd/domaincheckbot/config/domain.json
@@ -0,0 +1,105 @@
+[
+  "1488.ch",
+  "ascii.tools",
+  "astonish.ch",
+  "astonishing.ch",
+  "attribution.ch",
+  "blizan.ch",
+  "buehnenbande.ch",
+  "ccc.ch",
+  "cori.us",
+  "dropdrop.dev",
+  "dropdrop.fun",
+  "dropdrop.pro",
+  "dropdrop.quest",
+  "dropdrop.wiki",
+  "example.com",
+  "familie.st",
+  "family.st",
+  "felizian.ch",
+  "felizian.st",
+  "fst.ch",
+  "g8.co",
+  "g8.com",
+  "g8.io",
+  "g8.is",
+  "g8.net",
+  "g8.nz",
+  "g8.re",
+  "gr8.click",
+  "gwydi.me",
+  "incline.ch",
+  "mojang.studio",
+  "nilu.ch",
+  "nqa.ch",
+  "phynecs.com",
+  "poisoned.app",
+  "poisonedapple.ch",
+  "rievo.app",
+  "rievo.cc",
+  "rievo.ch",
+  "rievo.co",
+  "rievo.co.uk",
+  "rievo.com",
+  "rievo.cz",
+  "rievo.de",
+  "rievo.dev",
+  "rievo.eu",
+  "rievo.eu.org",
+  "rievo.group",
+  "rievo.host",
+  "rievo.info",
+  "rievo.io",
+  "rievo.mx",
+  "rievo.net",
+  "rievo.org",
+  "rievo.page",
+  "rievo.swiss",
+  "rievo.systems",
+  "rievo.us",
+  "rievo.xyz",
+  "rv.gy",
+  "rvo.co",
+  "rvo.com",
+  "rvo.net",
+  "rvo.one",
+  "rvo.re",
+  "schuer.ch",
+  "schuerch.ch",
+  "schuerch.co",
+  "schuerch.com",
+  "schuerch.dev",
+  "schuerch.id",
+  "schuerch.net",
+  "schuerch.xyz",
+  "schur.ch",
+  "schurch.ch",
+  "schurch.com",
+  "schurch.dev",
+  "schurch.net",
+  "schwabe.ch",
+  "scrib.li",
+  "seraphimstrub.com",
+  "signage.ch",
+  "sos-esport.com",
+  "sos-esports.com",
+  "sst.ch",
+  "sst.place",
+  "strub.cc",
+  "strub.ch",
+  "strub.co",
+  "strub.com",
+  "strub.consulting",
+  "strub.info",
+  "strub.net",
+  "strub.one",
+  "strub.org",
+  "strub.st",
+  "strub.swiss",
+  "strub.xyz",
+  "swizer.land",
+  "thehat.ch",
+  "unlogis.ch",
+  "xii.st",
+  "xn--schrch-5ya.ch"
+]
\ No newline at end of file
diff --git a/cmd/domaincheckbot/dns/domain.go b/cmd/domaincheckbot/dns/domain.go
new file mode 100644
index 0000000..51b5374
--- /dev/null
+++ b/cmd/domaincheckbot/dns/domain.go
@@ -0,0 +1,35 @@
+package dns
+
+import (
+	"grow.rievo.dev/discordBots/cmd/domaincheckbot/repository"
+	"net"
+	"sort"
+)
+
+func CheckDomain(domain string) repository.Domain {
+	nameservers, err := net.LookupNS(domain)
+
+	if len(nameservers) > 0 && err == nil {
+		return repository.Domain{
+			Name: domain,
+			NS:   nsToArray(nameservers),
+		}
+	}
+	return repository.Domain{
+		Name: domain,
+		NS:   []string{},
+	}
+}
+
+func nsToArray(nameservers []*net.NS) []string {
+	var nsArray []string
+	for _, nameserver := range nameservers {
+		nsArray = append(nsArray, nameserver.Host)
+	}
+
+	sort.SliceStable(nsArray, func(i, j int) bool {
+		return nsArray[i] < nsArray[j]
+	})
+
+	return nsArray
+}
diff --git a/cmd/domaincheckbot/main.go b/cmd/domaincheckbot/main.go
new file mode 100644
index 0000000..54af159
--- /dev/null
+++ b/cmd/domaincheckbot/main.go
@@ -0,0 +1,98 @@
+package main
+
+import (
+	"context"
+	"errors"
+	"fmt"
+	"github.com/dgraph-io/badger/v4"
+	"github.com/disgoorg/disgo"
+	"github.com/disgoorg/disgo/discord"
+	"github.com/disgoorg/disgo/rest"
+	"github.com/disgoorg/disgo/webhook"
+	"github.com/disgoorg/log"
+	"github.com/disgoorg/snowflake/v2"
+	"grow.rievo.dev/discordBots/cmd/domaincheckbot/config"
+	"grow.rievo.dev/discordBots/cmd/domaincheckbot/dns"
+	"grow.rievo.dev/discordBots/cmd/domaincheckbot/repository"
+	"os"
+	"os/signal"
+	"reflect"
+	"syscall"
+	"time"
+)
+
+var (
+	webhookID    = snowflake.GetEnv("webhook_id")
+	webhookToken = os.Getenv("webhook_token")
+)
+
+// TODO: clear db from domains removed from json
+
+func main() {
+	log.SetLevel(log.LevelInfo)
+	log.Info("starting domainCheck...")
+	log.Info("disgo version: ", disgo.Version)
+
+	client := webhook.New(webhookID, webhookToken)
+	defer client.Close(context.TODO())
+
+	repo := repository.InitDb()
+	defer repo.Close()
+
+	ticker := time.NewTicker(10 * time.Minute)
+	tickerGC := time.NewTicker(15 * time.Minute)
+	quit := make(chan struct{})
+
+	go func() {
+		for {
+			select {
+			case <-ticker.C:
+				for _, d := range config.Domains {
+					domain := dns.CheckDomain(d)
+					retrievedDomain, _ := repo.GetValue(d)
+					if reflect.DeepEqual(domain, retrievedDomain) {
+						log.Debugf(" %v: did not change", d)
+					} else {
+						log.Infof("!%v: changed", d)
+						go sendWebhook(client, domain, retrievedDomain)
+						repo.SetValue(domain)
+					}
+				}
+
+			case <-tickerGC.C:
+				err := repo.RunGC()
+				if err != nil && !errors.Is(err, badger.ErrNoRewrite) {
+					log.Errorf("error with GC: %v", err)
+				} else {
+					log.Debug("GC successful")
+				}
+
+			case <-quit:
+				ticker.Stop()
+				tickerGC.Stop()
+				return
+			}
+		}
+	}()
+
+	log.Infof("domainCheck is now running. Press CTRL-C to exit.")
+	s := make(chan os.Signal, 1)
+	signal.Notify(s, syscall.SIGINT, syscall.SIGTERM, os.Interrupt)
+	<-s
+}
+
+func sendWebhook(client webhook.Client, domain repository.Domain, oldDomain repository.Domain) {
+	var status string
+
+	status = fmt.Sprintf("```md\n# %v", domain.Name)
+	status = fmt.Sprintf("%v\n - %v", status, oldDomain.NS)
+	status = fmt.Sprintf("%v\n + %v", status, domain.NS)
+	status = fmt.Sprintf("%v```\n", status)
+
+	if _, err := client.CreateMessage(discord.NewWebhookMessageCreateBuilder().
+		SetContent(status).Build(),
+		rest.WithDelay(2*time.Second),
+	); err != nil {
+		log.Errorf("error sending message %v", err.Error())
+	}
+}
diff --git a/cmd/domaincheckbot/repository/repository.go b/cmd/domaincheckbot/repository/repository.go
new file mode 100644
index 0000000..cdadc66
--- /dev/null
+++ b/cmd/domaincheckbot/repository/repository.go
@@ -0,0 +1,108 @@
+package repository
+
+import (
+	"encoding/json"
+	"github.com/dgraph-io/badger/v4"
+	"github.com/disgoorg/log"
+)
+
+type Domain struct {
+	Name string
+	NS   []string
+}
+
+type Repository interface {
+	GetAll() ([]Domain, error)
+	GetValue(domainName string) Domain
+	SetValue(domain Domain) error
+	DeleteValue(domainName string) error
+	Close() error
+}
+
+type DomainRepository struct {
+	db *badger.DB
+}
+
+func InitDb() *DomainRepository {
+	opts := badger.DefaultOptions("./badger")
+	opts.Logger = nil
+	db, err := badger.Open(opts)
+	if err != nil {
+		log.Fatal(err)
+	}
+	return &DomainRepository{db}
+}
+
+func (d *DomainRepository) Close() error {
+	return d.db.Close()
+}
+
+func (d *DomainRepository) RunGC() error {
+	return d.db.RunValueLogGC(0.7)
+}
+
+func (d *DomainRepository) GetAll() ([]Domain, error) {
+	var domains []Domain
+	err := d.db.View(func(txn *badger.Txn) error {
+		opts := badger.DefaultIteratorOptions
+		opts.PrefetchSize = 10
+		it := txn.NewIterator(opts)
+		defer it.Close()
+		for it.Rewind(); it.Valid(); it.Next() {
+			item := it.Item()
+			err := item.Value(func(val []byte) error {
+				retrievedDomain := Domain{}
+				err := json.Unmarshal(val, &retrievedDomain)
+				domains = append(domains, retrievedDomain)
+				return err
+			})
+			if err != nil {
+				return err
+			}
+		}
+		return nil
+	})
+	return domains, err
+}
+
+func (d *DomainRepository) GetValue(domainName string) (Domain, error) {
+	retrievedDomain := Domain{}
+	err := d.db.View(func(txn *badger.Txn) error {
+		item, err := txn.Get([]byte(domainName))
+		if err != nil {
+			return err
+		}
+		err = item.Value(func(val []byte) error {
+			err = json.Unmarshal(val, &retrievedDomain)
+			return err
+		})
+		return err
+	})
+	if err != nil {
+		return Domain{}, err
+	}
+	return retrievedDomain, nil
+}
+
+func (d *DomainRepository) SetValue(domain Domain) error {
+	jsonBytes, err := json.Marshal(domain)
+	if err != nil {
+		return err
+	}
+	err = d.db.Update(func(txn *badger.Txn) error {
+		err := txn.Set([]byte(domain.Name), jsonBytes)
+		return err
+	})
+	if err != nil {
+		return err
+	}
+	return nil
+}
+
+func (d *DomainRepository) DeleteValue(domainName string) error {
+	err := d.db.Update(func(txn *badger.Txn) error {
+		err := txn.Delete([]byte(domainName))
+		return err
+	})
+	return err
+}