diff --git a/internal/deployer/aliyun_cdn.go b/internal/deployer/aliyun_cdn.go
index 71a96d6d..a23ce8a5 100644
--- a/internal/deployer/aliyun_cdn.go
+++ b/internal/deployer/aliyun_cdn.go
@@ -4,6 +4,7 @@ import (
 	"context"
 	"encoding/json"
 	"fmt"
+	"time"
 
 	aliyunCdn "github.com/alibabacloud-go/cdn-20180510/v5/client"
 	aliyunOpen "github.com/alibabacloud-go/darabonba-openapi/v2/client"
@@ -11,7 +12,6 @@ import (
 	xerrors "github.com/pkg/errors"
 
 	"github.com/usual2970/certimate/internal/domain"
-	"github.com/usual2970/certimate/internal/utils/rand"
 )
 
 type AliyunCDNDeployer struct {
@@ -51,14 +51,12 @@ func (d *AliyunCDNDeployer) GetInfos() []string {
 }
 
 func (d *AliyunCDNDeployer) Deploy(ctx context.Context) error {
-	certName := fmt.Sprintf("%s-%s-%s", d.option.Domain, d.option.DomainId, rand.RandStr(6))
-
 	// 设置 CDN 域名域名证书
 	// REF: https://help.aliyun.com/zh/cdn/developer-reference/api-cdn-2018-05-10-setcdndomainsslcertificate
 	setCdnDomainSSLCertificateReq := &aliyunCdn.SetCdnDomainSSLCertificateRequest{
 		DomainName:  tea.String(d.option.DeployConfig.GetConfigAsString("domain")),
 		CertRegion:  tea.String(d.option.DeployConfig.GetConfigOrDefaultAsString("region", "cn-hangzhou")),
-		CertName:    tea.String(certName),
+		CertName:    tea.String(fmt.Sprintf("certimate-%d", time.Now().UnixMilli())),
 		CertType:    tea.String("upload"),
 		SSLProtocol: tea.String("on"),
 		SSLPub:      tea.String(d.option.Certificate.Certificate),
diff --git a/internal/deployer/aliyun_clb.go b/internal/deployer/aliyun_clb.go
index 3344b501..9669001b 100644
--- a/internal/deployer/aliyun_clb.go
+++ b/internal/deployer/aliyun_clb.go
@@ -112,12 +112,11 @@ func (d *AliyunCLBDeployer) createSdkClient(accessKeyId, accessKeySecret, region
 
 func (d *AliyunCLBDeployer) deployToLoadbalancer(ctx context.Context) error {
 	aliLoadbalancerId := d.option.DeployConfig.GetConfigAsString("loadbalancerId")
+	aliListenerPorts := make([]int32, 0)
 	if aliLoadbalancerId == "" {
 		return errors.New("`loadbalancerId` is required")
 	}
 
-	aliListenerPorts := make([]int32, 0)
-
 	// 查询负载均衡实例的详细信息
 	// REF: https://help.aliyun.com/zh/slb/classic-load-balancer/developer-reference/api-slb-2014-05-15-describeloadbalancerattribute
 	describeLoadBalancerAttributeReq := &aliyunSlb.DescribeLoadBalancerAttributeRequest{
diff --git a/internal/deployer/aliyun_dcdn.go b/internal/deployer/aliyun_dcdn.go
index 75b03cbc..0f969787 100644
--- a/internal/deployer/aliyun_dcdn.go
+++ b/internal/deployer/aliyun_dcdn.go
@@ -5,6 +5,7 @@ import (
 	"encoding/json"
 	"fmt"
 	"strings"
+	"time"
 
 	aliyunOpen "github.com/alibabacloud-go/darabonba-openapi/v2/client"
 	aliyunDcdn "github.com/alibabacloud-go/dcdn-20180115/v3/client"
@@ -12,7 +13,6 @@ import (
 	xerrors "github.com/pkg/errors"
 
 	"github.com/usual2970/certimate/internal/domain"
-	"github.com/usual2970/certimate/internal/utils/rand"
 )
 
 type AliyunDCDNDeployer struct {
@@ -52,8 +52,6 @@ func (d *AliyunDCDNDeployer) GetInfos() []string {
 }
 
 func (d *AliyunDCDNDeployer) Deploy(ctx context.Context) error {
-	certName := fmt.Sprintf("%s-%s-%s", d.option.Domain, d.option.DomainId, rand.RandStr(6))
-
 	// 支持泛解析域名，在 Aliyun DCDN 中泛解析域名表示为 .example.com
 	domain := d.option.DeployConfig.GetConfigAsString("domain")
 	if strings.HasPrefix(domain, "*") {
@@ -65,7 +63,7 @@ func (d *AliyunDCDNDeployer) Deploy(ctx context.Context) error {
 	setDcdnDomainSSLCertificateReq := &aliyunDcdn.SetDcdnDomainSSLCertificateRequest{
 		DomainName:  tea.String(domain),
 		CertRegion:  tea.String(d.option.DeployConfig.GetConfigOrDefaultAsString("region", "cn-hangzhou")),
-		CertName:    tea.String(certName),
+		CertName:    tea.String(fmt.Sprintf("certimate-%d", time.Now().UnixMilli())),
 		CertType:    tea.String("upload"),
 		SSLProtocol: tea.String("on"),
 		SSLPub:      tea.String(d.option.Certificate.Certificate),
diff --git a/internal/utils/rand/rand.go b/internal/utils/rand/rand.go
index 3b0b71f6..05fa684e 100644
--- a/internal/utils/rand/rand.go
+++ b/internal/utils/rand/rand.go
@@ -5,7 +5,8 @@ import (
 	"time"
 )
 
-// RandStr 随机生成指定长度字符串
+// Deprecated: this will be removed in the future.
+// 随机生成指定长度字符串
 func RandStr(n int) string {
 	seed := time.Now().UnixNano()
 	source := rand.NewSource(seed)