`51zhangdan.com`

DNSSEC	⚠️ Not signed
A	115.238.29.11^{🇨🇳 CT-HangZhou-IDC115.238.0.0/19 Chinanet-HangZhou-IDC}
NS	`f1g1ns1.dnspod.net` ⭐
		A	2402:4e00:1470:2::e^{🇨🇳 TENCENT-NET-AP2402:4e00:1400::/40}
		A	1.12.0.4^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.14.119.35^{🇨🇳 TENCENT-NET-AP1.14.64.0/18}
		A	111.13.13.35^{🇨🇳 CHINAMOBILE-CN111.13.0.0/16 CMI (Customer Route)}
		A	117.135.128.235^{🇨🇳 CHINAMOBILE-CN117.135.128.0/24 CMI (Customer Route)}
			PTR	`(root)`
		A	125.94.59.235^{🇨🇳 CHINANET-BACKBONE125.88.0.0/13 chinanet Guangdong network}
		A	163.177.5.35^{🇨🇳 UNICOM-GuangZhou-IDC163.177.5.0/24}
NS	`f1g1ns2.dnspod.net`
		A	2402:4e00:111:fff::c^{🇨🇳 TENCENT-NET-AP2402:4e00::/35}
		A	1.12.0.1^{🇨🇳 TENCENT-NET-AP-CN1.12.0.0/20 ZL-IDC-BOM}
		A	1.13.76.35^{🇨🇳 TENCENT-NET-AP1.13.64.0/18}
		A	36.155.149.35^{🇨🇳 CMNET-Jiangsu-AP36.155.144.0/21 CMI (Customer Route)}
		A	101.227.168.35^{🇨🇳 SHANGHAITELECOM101.227.168.0/23 SHIDC}
		A	106.39.207.235^{🇨🇳 CHINA-1106.39.192.0/19 China Telecom Beijing Co. Ltd.}
		A	111.206.98.235^{🇨🇳 CHINA169-BJ111.206.98.0/24}
		A	220.196.136.35^{🇨🇳 UNICOM-SHFT-IDC220.196.136.0/24}
MX	`mail.51zhangdan.com` ⭐
		A	115.238.29.16^{🇨🇳 CT-HangZhou-IDC115.238.0.0/19 Chinanet-HangZhou-IDC}
TXT	`w4z1m08g6rhnvhh8qwwpd8fw5w9j92pj`
TXT	`spf1 include:spf.mail.51zhangdan.com -all`
TXT	`s0nht0f0y3gxx898tny4l5gpytgqq0gy`
SOA	`f1g1ns1.dnspod.net`freednsadmin@dnspod.com serial=1732071216

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1774704312

PTR for

139.178.129.183.in-addr.arpa

Subdomains

send.51zhangdan.com

creditimg.51zhangdan.com

www.51zhangdan.com

click.51zhangdan.com

enniuapi.51zhangdan.com

wap.51zhangdan.com

m.51zhangdan.com

pic.51zhangdan.com

t.51zhangdan.com

mail.51zhangdan.com

Same first word

51zhangdan.net

51zhangdan.org

51zhangdan.com

51zhangdan.cn

51zhangdan.cc

DNS History

7 records (4 active, 3 former)

●NSf1g1ns1.dnspod.net2021-06-08 → 2026-03-28 · 3 obs

○ 2020-01-01 23:50:02
● 2021-06-08 19:25:08
● 2026-03-28 13:29:32

●NSf1g1ns2.dnspod.net2021-06-08 → 2026-03-28 · 3 obs

○ 2020-01-01 23:50:02
● 2021-06-08 19:25:08
● 2026-03-28 13:29:32

○NSns3.dnsv4.com2015-05-15 → 2020-01-01 · 4 obs

● 2015-05-15 05:01:12
● 2020-01-01 23:50:02
○ 2021-06-08 19:25:08
○ 2026-03-28 13:29:32

○NSns4.dnsv4.com2015-05-15 → 2020-01-01 · 4 obs

● 2015-05-15 05:01:12
● 2020-01-01 23:50:02
○ 2021-06-08 19:25:08
○ 2026-03-28 13:29:32

●MXmail.51zhangdan.com2015-05-15 → 2026-03-28 · 2 obs

● 2015-05-15 05:01:12
● 2026-03-28 13:29:32

●A115.238.29.112020-01-01 → 2026-03-28 · 3 obs

○ 2016-09-21 11:33:24
● 2020-01-01 23:50:02
● 2026-03-28 13:29:32

○A183.129.178.1422015-05-15 → 2016-09-21 · 4 obs

● 2015-05-15 05:01:12
● 2016-09-21 11:33:24
○ 2020-01-01 23:50:02
○ 2026-03-28 13:29:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
51zhangdan.com	f1g1ns1.dnspod.net, f1g1ns2.dnspod.net	-

✅ Authoritative Response

Server:1.12.0.4

NS records: f1g1ns1.dnspod.net, f1g1ns2.dnspod.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 51zhangdan.com (unsigned zone)

⏱️ Timing

Total: 3648ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`115.238.29.11`
NS	2	`f1g1ns1.dnspod.net, f1g1ns2.dnspod.net`
MX	1	`mail.51zhangdan.com (pri: 5)`
TXT	3	`spf1 include:spf.mail.51zhangdan.com -al, s0nht0f0y3gxx898tny4l5gpytgqq0gy...`
SOA	1	`f1g1ns1.dnspod.net freednsadmin.dnspod.c`

Analysis

Hierarchy

51zhangdan.com is the parent of send.51zhangdan.com, creditimg.51zhangdan.com, www.51zhangdan.com, click.51zhangdan.com, enniuapi.51zhangdan.com and a few other host names.

IP Addresses

51zhangdan.com resolves to one IP number: 115.238.29.11.

other host names including u51.com, click.51zhangdan.com, 51emonkey.com, nbxlb.u51.com and enniuapi.u51.com share IP numbers with 51zhangdan.com.

Name Servers

51zhangdan.com is delegated to two name servers f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.

51zhangdan.com shares the same name server setup as other domains, for instance oisa.cn, 521svip.cn, xcedt.com, xhsn.cn and immusician.com.

51zhangdan.com at least partially shares name servers with other domains, for instance 9jd83d.com, sun116.com, yihaowanjia.cn, eyaos.com and i155i617.cfd.

These name servers are commonly used with a.dnspod.com, b.dnspod.com and c.dnspod.com.

Eight IP numbers for a host:

f1g1ns2.dnspod.net points to: 2402:4e00:111:fff::c, 1.12.0.1, 1.13.76.35, 36.155.149.35, 101.227.168.35, 106.39.207.235, 111.206.98.235 and 220.196.136.35.

Seven IP numbers for a host:

f1g1ns1.dnspod.net points to: 2402:4e00:1470:2::e, 1.12.0.4, 1.14.119.35, 111.13.13.35, 117.135.128.235, 125.94.59.235 and 163.177.5.35.

Mail Servers

51zhangdan.com is handled by a single mail server, mail.51zhangdan.com.

mail.51zhangdan.com resolves to IP 115.238.29.16.

51zhangdan.com - robtex.com

51zhangdan.com

com