developercourse.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`developercourse.com`

DNSSEC	⚠️ Not signed
A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
		PTR	`a904c694c05102f30.awsglobalaccelerator.com`
A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
NS	`ns2.afternic.com` ⭐
		A	2603:5:2226::45^{🇺🇸 GODADDY-DNS2603:5:2220::/44}
			PTR	`ns2.afternic.com`
		A	173.201.66.69^{🇺🇸 GODADDY-DNS173.201.66.0/23}
			PTR	`ns2.afternic.com`
NS	`ns1.afternic.com`
		A	2603:5:2126::45^{🇺🇸 GODADDY-DNS2603:5:2120::/44}
			PTR	`ns1.afternic.com`
		A	97.74.98.69^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns1.afternic.com`
NS	`verification-o8qgqaqkltquekqthhekc9.ns101.verify.hn` ⚠️ Not in zone NS records
		A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
			PTR	`a904c694c05102f30.awsglobalaccelerator.com`
		A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
			PTR	`a904c694c05102f30.awsglobalaccelerator.com`
TXT	`v=spf1 -all`
SOA	`ns2.afternic.com`dns@jomax.net serial=1

`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=1787653651

Subdomains

mx.developercourse.com

Same first word

developercourse.com

Similar names

sourcedeveloper.net

coursedeveloper.com

developersource.com

Previous names

Next names

DNS History

15 records (5 active, 10 former)

●NSns1.afternic.com2026-08-23 → 2026-08-25 · 3 obs

○ 2016-04-09 13:52:44
● 2026-08-23 21:42:48
● 2026-08-25 10:50:10

○NSns1.sedoparking.com2015-06-08 → 2015-06-08 · 3 obs

● 2015-06-08 21:10:24
○ 2015-10-18 18:40:06
○ 2026-08-25 10:50:10

○NSns1.undeveloped.com2015-10-18 → 2016-04-09 · 5 obs

○ 2015-06-08 21:10:24
● 2015-10-18 18:40:06
● 2016-04-09 13:52:44
○ 2026-08-23 21:42:48
○ 2026-08-25 10:50:10

●NSns2.afternic.com2026-08-23 → 2026-08-25 · 3 obs

○ 2016-04-09 13:52:44
● 2026-08-23 21:42:48
● 2026-08-25 10:50:10

○NSns2.sedoparking.com2015-06-08 → 2015-06-08 · 3 obs

● 2015-06-08 21:10:24
○ 2015-10-18 18:40:06
○ 2026-08-25 10:50:10

○NSns2.undeveloped.com2015-10-18 → 2016-04-09 · 5 obs

○ 2015-06-08 21:10:24
● 2015-10-18 18:40:06
● 2016-04-09 13:52:44
○ 2026-08-23 21:42:48
○ 2026-08-25 10:50:10

●NSverification-o8qgqaqkltquekqthhekc9.ns101.verify.hn2026-08-23 → 2026-08-25 · 3 obs

○ 2016-04-09 13:52:44
● 2026-08-23 21:42:48
● 2026-08-25 10:50:10

○MXmail.nickstel.com2015-06-08 → 2015-06-08 · 3 obs

● 2015-06-08 21:10:24
○ 2016-01-14 12:03:38
○ 2026-08-25 10:50:10

○MXmx.developercourse.com2016-01-14 → 2016-04-09 · 5 obs

○ 2015-06-08 21:10:24
● 2016-01-14 12:03:38
● 2016-04-09 13:52:44
○ 2026-08-23 21:42:48
○ 2026-08-25 10:50:10

●A13.248.169.482026-08-23 → 2026-08-25 · 3 obs

○ 2017-05-21 11:05:04
● 2026-08-23 21:42:48
● 2026-08-25 10:50:10

○A173.192.64.1472016-09-24 → 2017-05-21 · 5 obs

○ 2016-04-09 13:52:44
● 2016-09-24 13:05:14
● 2017-05-21 11:05:04
○ 2026-08-23 21:42:48
○ 2026-08-25 10:50:10

○A52.58.78.162016-04-09 → 2016-04-09 · 4 obs

○ 2016-01-14 12:03:38
● 2016-04-09 13:52:44
○ 2016-09-24 13:05:14
○ 2026-08-25 10:50:10

○A72.52.4.1192015-06-08 → 2015-06-08 · 3 obs

● 2015-06-08 21:10:24
○ 2015-10-18 18:40:06
○ 2026-08-25 10:50:10

●A76.223.54.1462026-08-23 → 2026-08-25 · 3 obs

○ 2017-05-21 11:05:04
● 2026-08-23 21:42:48
● 2026-08-25 10:50:10

○A80.240.129.102015-10-18 → 2016-01-14 · 5 obs

○ 2015-06-08 21:10:24
● 2015-10-18 18:40:06
● 2016-01-14 12:03:38
○ 2016-04-09 13:52:44
○ 2026-08-25 10:50:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
developercourse.com	ns1.afternic.com, ns2.afternic.com, verification-o8qgqaqkltquekqthhekc9.ns101.verify.hn	4 records

✅ Authoritative Response

Server:97.74.98.69

NS records: ns1.afternic.com, ns2.afternic.com, verification-o8qgqaqkltquekqthhekc9.ns101.verify.hn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for developercourse.com (unsigned zone)

⏱️ Timing

Total: 3333ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`76.223.54.146, 13.248.169.48`
NS	2	`ns1.afternic.com, ns2.afternic.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`ns1.afternic.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.afternic.com, ns1.afternic.com, ns2.afternic.com...)

Analysis

Hierarchy

developercourse.com serves as the parent of mx.developercourse.com.

IP Addresses

developercourse.com resolves to the IP addresses 13.248.169.48 and 76.223.54.146

mathgrades.com, factory-certified.com, 8963.com.cn and two other host names share IP numbers with developercourse.com.

Name Servers

developercourse.com carries NS records delegating to ns1.afternic.com, ns2.afternic.com and verification-o8qgqaqkltquekqthhekc9.ns101.verify.hn.

developercourse.com has at least partial name server overlap with other domains, such as funquan.com, identitas.com, mam.cc and two others.

It is common to find these name servers paired with the name servers verification-sssklblttezjbmchvxsjnn.ns101.verify.hn.

ns1.afternic.com, ns2.afternic.com and verification-o8qgqaqkltquekqthhekc9.ns101.verify.hn are three hostnames that each resolve to a pair of IP addresses: ns1.afternic.com to 97.74.98.69 and 2603:5:2126::45, ns2.afternic.com to 173.201.66.69 and 2603:5:2226::45, and verification-o8qgqaqkltquekqthhekc9.ns101.verify.hn to 13.248.169.48 and 76.223.54.146.