offercourse.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`offercourse.com`

DNSSEC	⚠️ Not signed
A	2600:1f18:4ae:c605:dd5d:b838:5816:d7fb^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	2600:1f18:4ae:c606:78d4:4260:db4e:aeee^{🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix}
A	13.223.25.84^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
A	54.243.117.197^{🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix}
NS	`ns1.namebrightdns.com` ⭐
		A	2600:1f18:683a:ae1a:401d:c0e9:501a:ea95^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:b913:ba6c:3406:1ea4^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:8f86:730e:f0dc:d67a^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	54.152.208.19^{🇺🇸 Amazon54.152.0.0/16 EC2 IAD prefix}
		A	54.209.0.198^{🇺🇸 Amazon54.208.0.0/15 EC2 IAD prefix}
NS	`nsg1.namebrightdns.com`
		A	2600:1f18:683a:ae1a:a20e:d941:6738:e505^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:a24f:972b:9405:90a7^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:cdd7:bd29:1367:9b99^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:d88:86a4:5add:be37^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:ae05:7278:b3b9:45e^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	13.217.214.227^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
			PTR	`ec2-13-217-214-227.compute-1.amazonaws.com`
		A	52.91.222.88^{🇺🇸 Amazon52.90.0.0/15 EC2 IAD prefix}
			PTR	`ec2-52-91-222-88.compute-1.amazonaws.com`
		A	98.83.118.78^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
			PTR	`ec2-98-83-118-78.compute-1.amazonaws.com`
		A	98.88.70.171^{🇺🇸 Amazon98.88.0.0/13 EC2 IAD prefix}
			PTR	`ec2-98-88-70-171.compute-1.amazonaws.com`
NS	`nsg2.namebrightdns.com`
		A	2600:1f18:683a:ae1a:1c17:e1e0:1e8f:c759^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:24ab:9e2:6b69:527a^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:e00e:a1a6:3307:c0b2^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	54.81.233.19^{🇺🇸 Amazon54.80.0.0/14 EC2 IAD prefix}
			PTR	`ec2-54-81-233-19.compute-1.amazonaws.com`
		A	54.145.86.164^{🇺🇸 Amazon54.144.0.0/14 EC2 IAD NAT prefix}
			PTR	`ec2-54-145-86-164.compute-1.amazonaws.com`
		A	54.175.195.127^{🇺🇸 Amazon54.174.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-175-195-127.compute-1.amazonaws.com`
		A	100.53.235.250^{🇺🇸 Amazon100.48.0.0/12 EC2 IAD prefix}
			PTR	`ec2-100-53-235-250.compute-1.amazonaws.com`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
TXT	`v=spf1 -all`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-10-28 #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=1793247421

Previously MX for

www.offercourse.com

offercourse.com

Subdomains

www.offercourse.com

Same first word

offercourse.com

Similar names

offersource.de

offersource.net

offersource.in

sourceoffer.shop

sourceoffer.com

offersource.site

courseoffer.com

offersource.shop

coeuroffers.com

sourceoffer.ph

offersource.com

Previous names

Next names

DNS History

14 records (7 active, 7 former)

○NSns1.estroweb.in2016-12-08 → 2016-12-08 · 3 obs

● 2016-12-08 19:25:50
○ 2017-06-07 16:17:00
○ 2026-10-29 04:23:46

●NSns1.namebrightdns.com2026-10-27 → 2026-10-29 · 3 obs

○ 2017-06-07 16:17:00
● 2026-10-27 11:35:16
● 2026-10-29 04:23:46

○NSns1.semayra.com2017-06-07 → 2017-06-07 · 4 obs

○ 2016-12-08 19:25:50
● 2017-06-07 16:17:00
○ 2026-10-27 11:35:16
○ 2026-10-29 04:23:46

○NSns2.estroweb.in2016-12-08 → 2016-12-08 · 3 obs

● 2016-12-08 19:25:50
○ 2017-06-07 16:17:00
○ 2026-10-29 04:23:46

○NSns2.semayra.com2017-06-07 → 2017-06-07 · 4 obs

○ 2016-12-08 19:25:50
● 2017-06-07 16:17:00
○ 2026-10-27 11:35:16
○ 2026-10-29 04:23:46

●NSnsg1.namebrightdns.com2026-10-27 → 2026-10-29 · 3 obs

○ 2017-06-07 16:17:00
● 2026-10-27 11:35:16
● 2026-10-29 04:23:46

●NSnsg2.namebrightdns.com2026-10-27 → 2026-10-29 · 3 obs

○ 2017-06-07 16:17:00
● 2026-10-27 11:35:16
● 2026-10-29 04:23:46

○MXoffercourse.com2016-12-08 → 2017-06-07 · 4 obs

● 2016-12-08 19:25:50
● 2017-06-07 16:17:00
○ 2026-10-27 11:35:16
○ 2026-10-29 04:23:46

●A13.223.25.842026-10-27 → 2026-10-29 · 3 obs

○ 2017-06-07 16:17:00
● 2026-10-27 11:35:16
● 2026-10-29 04:23:46

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-10-27 → 2026-10-29 · 3 obs

○ 2017-06-07 16:17:00
● 2026-10-27 11:35:16
● 2026-10-29 04:23:46

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-10-27 → 2026-10-29 · 3 obs

○ 2017-06-07 16:17:00
● 2026-10-27 11:35:16
● 2026-10-29 04:23:46

○A37.49.228.1202016-12-08 → 2016-12-08 · 3 obs

● 2016-12-08 19:25:50
○ 2017-06-07 16:17:00
○ 2026-10-29 04:23:46

○A37.49.229.242017-06-07 → 2017-06-07 · 4 obs

○ 2016-12-08 19:25:50
● 2017-06-07 16:17:00
○ 2026-10-27 11:35:16
○ 2026-10-29 04:23:46

●A54.243.117.1972026-10-27 → 2026-10-29 · 3 obs

○ 2017-06-07 16:17:00
● 2026-10-27 11:35:16
● 2026-10-29 04:23:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
offercourse.com	nsg1.namebrightdns.com, nsg2.namebrightdns.com	16 records

✅ Authoritative Response

Server:13.217.214.227

NS records: nsg1.namebrightdns.com, nsg2.namebrightdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for offercourse.com (unsigned zone)

⏱️ Timing

Total: 1031ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.223.25.84, 54.243.117.197`
AAAA	2	`2600:1f18:4ae:c606:78d4:4260:db4e:aeee, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb`
NS	2	`nsg2.namebrightdns.com, nsg1.namebrightdns.com`
TXT	2	`afternic-verification-G9G3tM8T8EwEizzPzj, v=spf1 -all`
SOA	1	`ns1.namebrightdns.com dns.namebright.com`

📌 Glue Records Collected

Total: 16

Out-of-bailiwick: 16 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

Hierarchy

offercourse.com is a parent domain of www.offercourse.com.

IP Addresses

offercourse.com has four IP addresses: 13.223.25.84, 54.243.117.197, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb and 2600:1f18:4ae:c606:78d4:4260:db4e:aeee.

Two other host names, along with sharpflooring.com, stackexchanges.com and joy3x.com, also share IP numbers with offercourse.com.

Name Servers

offercourse.com carries NS records delegating to ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

offercourse.com shares at least some of its name servers with other domains, including 4funnel.com, 12-156-250-128.davtv.com, lhands.com and two others.

These name servers are frequently paired with the name servers domain-for-sale.hugedomainsdns.com, forsale.hugedomainsdns.com and ns2.namebrightdns.com.

DNS names with 9 IP addresses:

nsg1.namebrightdns.com resolves to 13.217.214.227, 52.91.222.88 and 98.83.118.78 among others, with 6 other IP addresses in total.

DNS names with 7 IP addresses:

nsg2.namebrightdns.com resolves to 54.81.233.19, 54.145.86.164 and 54.175.195.127 among others, with 4 other IP addresses in total.

Host names directing to five IP addresses:

ns1.namebrightdns.com has four IP addresses — 54.152.208.19, 54.209.0.198, 2600:1f18:683a:ae1a:401d:c0e9:501a:ea95 and two others.