opticourse.com - dns.ninja

`opticourse.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	`ns3.afternic.com` ⭐
		A	97.74.98.65^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns3.afternic.com`
NS	`ns4.afternic.com`
		A	173.201.66.65^{🇺🇸 GODADDY-DNS173.201.66.0/23}
			PTR	`ns4.namefind.com`
TXT	`v=spf1 -all`
SOA	`ns3.afternic.com`dns@jomax.net 2025-10-01 #0

`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=1783277056

Same first word

opticourse.com

Similar names

DNS History

14 records (4 active, 10 former)

○NSns01.cashparking.com2015-10-24 → 2015-12-25 · 5 obs

○ 2015-06-09 12:33:02
● 2015-10-24 22:52:32
● 2015-12-25 01:14:02
○ 2016-03-23 15:03:42
○ 2026-07-05 18:44:32

○NSns1.afternic.com2016-03-23 → 2017-04-10 · 5 obs

○ 2015-12-25 01:14:02
● 2016-03-23 15:03:42
● 2017-04-10 03:20:00
○ 2026-03-25 18:28:58
○ 2026-07-05 18:44:32

●NSns3.afternic.com2026-03-25 → 2026-07-05 · 3 obs

○ 2017-04-10 03:20:00
● 2026-03-25 18:28:58
● 2026-07-05 18:44:32

●NSns4.afternic.com2026-03-25 → 2026-07-05 · 3 obs

○ 2017-04-10 03:20:00
● 2026-03-25 18:28:58
● 2026-07-05 18:44:32

○NSns53.domaincontrol.com2015-06-09 → 2015-06-09 · 3 obs

● 2015-06-09 12:33:02
○ 2015-10-24 22:52:32
○ 2026-07-05 18:44:32

○NSns54.domaincontrol.com2015-06-09 → 2015-06-09 · 3 obs

● 2015-06-09 12:33:02
○ 2015-10-24 22:52:32
○ 2026-07-05 18:44:32

○MX.2026-03-25 → 2026-07-05 · 2 obs

○ 2026-03-25 18:28:58
○ 2026-07-05 18:44:32

○MXmailstore1.secureserver.net2015-06-09 → 2015-12-25 · 4 obs

● 2015-06-09 12:33:02
● 2015-12-25 01:14:02
○ 2016-03-23 15:03:42
○ 2026-07-05 18:44:32

○MXsmtp.secureserver.net2015-06-09 → 2015-12-25 · 4 obs

● 2015-06-09 12:33:02
● 2015-12-25 01:14:02
○ 2016-03-23 15:03:42
○ 2026-07-05 18:44:32

●A13.248.169.482026-03-25 → 2026-07-05 · 3 obs

○ 2017-04-10 03:20:00
● 2026-03-25 18:28:58
● 2026-07-05 18:44:32

○A184.168.221.1042016-03-23 → 2017-04-10 · 5 obs

○ 2015-12-25 01:14:02
● 2016-03-23 15:03:42
● 2017-04-10 03:20:00
○ 2026-03-25 18:28:58
○ 2026-07-05 18:44:32

○A184.168.221.962015-10-24 → 2015-12-25 · 5 obs

○ 2015-06-09 12:33:02
● 2015-10-24 22:52:32
● 2015-12-25 01:14:02
○ 2016-03-23 15:03:42
○ 2026-07-05 18:44:32

○A72.167.191.692015-06-09 → 2015-06-09 · 3 obs

● 2015-06-09 12:33:02
○ 2015-10-24 22:52:32
○ 2026-07-05 18:44:32

●A76.223.54.1462026-03-25 → 2026-07-05 · 3 obs

○ 2017-04-10 03:20:00
● 2026-03-25 18:28:58
● 2026-07-05 18:44:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net, h.gtld-servers.net...	-
opticourse.com	ns3.afternic.com, ns4.afternic.com	2 records

✅ Authoritative Response

Server:173.201.66.65

NS records: ns3.afternic.com, ns4.afternic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for opticourse.com (unsigned zone)

⏱️ Timing

Total: 269ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.248.169.48, 76.223.54.146`
NS	2	`ns3.afternic.com, ns4.afternic.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`ns3.afternic.com dns.jomax.net`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns3.afternic.com, ns4.afternic.com)

Analysis

IP Addresses

opticourse.com directs to two IP numbers, 13.248.169.48 and 76.223.54.146

nullmx.hyperlure.com, communitybanksj.com, soczen.com and two other host names share IP numbers with opticourse.com.

Name Servers

DNS delegation for opticourse.com points to two name servers: ns3.afternic.com and ns4.afternic.com.

opticourse.com uses the same name servers as several other domains — among them srv3.newmeco.com, 175.59.69.com, www.trended.net and two more.

opticourse.com has at least partial name server overlap with other domains, such as rnux.com, atakas.com, 0251.com and two others.

It is common to see these name servers used together with name servers ns1.afternic.com and verification-gx9m4qbbvukhxvxdk2zdbk.ns101.verify.hn.

ns3.afternic.com directs to 97.74.98.65 and ns4.afternic.com directs to 173.201.66.65; each host name points to exactly one IP number.