coursegraph.com - dns.ninja

`coursegraph.com`

DNSSEC	⚠️ Not signed
A	192.155.85.108^{🇺🇸 AKAMAI-LINODE-AP192.155.80.0/21 Akamai Technologies}
		PTR	`192-155-85-108.ip.linodeusercontent.com`
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)}
		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}
SOA	`f1g1ns1.dnspod.net`freednsadmin@dnspod.com serial=1763971024

`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=1782583715

Subdomains

www.coursegraph.com

blog.coursegraph.com

Same first word

coursegraph.com

Similar names

DNS History

6 records (3 active, 3 former)

●NSf1g1ns1.dnspod.net2015-08-08 → 2026-06-27 · 2 obs

● 2015-08-08 06:54:18
● 2026-06-27 18:26:54

●NSf1g1ns2.dnspod.net2015-08-08 → 2026-06-27 · 2 obs

● 2015-08-08 06:54:18
● 2026-06-27 18:26:54

○A118.190.23.702017-03-21 → 2017-03-21 · 4 obs

○ 2016-07-03 04:37:26
● 2017-03-21 19:52:54
○ 2020-02-01 07:49:50
○ 2026-06-27 18:26:54

○A172.104.93.2282020-02-01 → 2020-02-01 · 4 obs

○ 2017-03-21 19:52:54
● 2020-02-01 07:49:50
○ 2026-04-13 19:31:06
○ 2026-06-27 18:26:54

●A192.155.85.1082026-04-13 → 2026-06-27 · 3 obs

○ 2020-02-01 07:49:50
● 2026-04-13 19:31:06
● 2026-06-27 18:26:54

○A42.96.171.402015-08-08 → 2016-07-03 · 4 obs

● 2015-08-08 06:54:18
● 2016-07-03 04:37:26
○ 2017-03-21 19:52:54
○ 2026-06-27 18:26:54

🔍 DNS Trace

📋 Delegation Chain

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

✅ Authoritative Response

Server:36.155.149.35

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coursegraph.com (unsigned zone)

⏱️ Timing

Total: 570ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`192.155.85.108`
NS	2	`f1g1ns2.dnspod.net, f1g1ns1.dnspod.net`
SOA	1	`f1g1ns1.dnspod.net freednsadmin.dnspod.c`

Analysis

Hierarchy

coursegraph.com serves as the parent of www.coursegraph.com and blog.coursegraph.com.

IP Addresses

coursegraph.com has exactly one IP address — 192.155.85.108.

Among others, courseeye.com, piwik.52nlp.cn, 52nlp.cn and blog.coursegraph.com resolve to the same IP numbers as coursegraph.com.

Name Servers

coursegraph.com uses two name servers for its delegation: f1g1ns1.dnspod.net and f1g1ns2.dnspod.net.

The name server configuration of coursegraph.com is shared with other domains, for instance united-tire.com, jingdian.com, webankservice.com and two others.

At least some of coursegraph.com's name servers are shared with other domains, for example jdbjsncsfd03.icu, mtfun001.com, shengdeyuan.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:

Hostname f1g1ns2.dnspod.net directs to 1.12.0.1, 1.13.76.35 and 36.155.149.35 along with 5 other IP addresses.

Hosts with 7 IP addresses each:

Hostname f1g1ns1.dnspod.net directs to 1.12.0.4, 1.14.119.35 and 111.13.13.35 along with 4 other IP addresses.