codevs.cn - dns.ninja

`codevs.cn`

DNSSEC	⚠️ Not signed
A	121.40.156.80^{🇨🇳 Alibaba-Cloud121.40.0.0/15}
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	`mxbiz1.qq.com` ⭐
MX	`mxbiz2.qq.com`⁽¹⁰⁾
SOA	`f1g1ns1.dnspod.net`freednsadmin@dnspod.com serial=1451331158

`cn`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034921194

WOT: SAFE (61/100)

Same first word

codevs.xyz

codevs.cn

codevs.jp

codevs.com

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DNS History

5 records (5 active, 0 former)

●NSf1g1ns1.dnspod.net2015-07-11 → 2026-06-15 · 2 obs

● 2015-07-11 11:40:32
● 2026-06-15 14:08:22

●NSf1g1ns2.dnspod.net2015-07-11 → 2026-06-15 · 2 obs

● 2015-07-11 11:40:32
● 2026-06-15 14:08:22

●MXmxbiz1.qq.com2015-07-11 → 2026-06-15 · 2 obs

● 2015-07-11 11:40:32
● 2026-06-15 14:08:22

●MXmxbiz2.qq.com2015-07-11 → 2026-06-15 · 2 obs

● 2015-07-11 11:40:32
● 2026-06-15 14:08:22

●A121.40.156.802015-07-11 → 2026-06-15 · 2 obs

● 2015-07-11 11:40:32
● 2026-06-15 14:08:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
codevs.cn	f1g1ns1.dnspod.net, f1g1ns2.dnspod.net	-

✅ Authoritative Response

Server:111.13.13.35

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codevs.cn (unsigned zone)

⏱️ Timing

Total: 1266ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`121.40.156.80`
NS	2	`f1g1ns2.dnspod.net, f1g1ns1.dnspod.net`
MX	2	`mxbiz1.qq.com (pri: 5), mxbiz2.qq.com (pri: 10)`
SOA	1	`f1g1ns1.dnspod.net freednsadmin.dnspod.c`

Analysis

IP Addresses

codevs.cn has exactly one IP address — 121.40.156.80.

Name Servers

Two name servers handle the delegation for codevs.cn: f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.

The name server configuration of codevs.cn is shared with other domains, for instance duao.net, lujun.info, glyjk.com and two others.

At least some of codevs.cn's name servers are shared with other domains, for example caltech.mobi, glevont.com, wandashihua.com and two more.

It is common for these name servers to be used in conjunction with the name servers a.dnspod.com, c.dnspod.com and b.dnspod.com.

Hosts with 8 IP addresses each:

f1g1ns2.dnspod.net resolves to 1.12.0.1, 1.13.76.35 and 36.155.149.35 among others, with 5 other IP addresses in total.

Hosts with 7 IP addresses each:

f1g1ns1.dnspod.net resolves to 1.12.0.4, 1.14.119.35 and 111.13.13.35 among others, with 4 other IP addresses in total.

Mail Servers

codevs.cn uses two mail servers, mxbiz1.qq.com and mxbiz2.qq.com.

The mail server setup of codevs.cn matches that of other domains such as hxxmhscu.cn, windoent.com, ceitcl.com and two others.

codevs.cn overlaps on mail servers with several other domains, for example nioo.cn, cmway.net, ihome.cn and jp.vin.