`concordlearning.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:941d:603c:10ae:a55b^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:bf7f:1555:7f7e:bc3d^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.87.120.121^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-87-120-121.compute-1.amazonaws.com`
		A	54.87.219.199^{🇺🇸 Amazon54.87.0.0/16 EC2 IAD prefix}
			PTR	`ec2-54-87-219-199.compute-1.amazonaws.com`
		A	54.221.97.121^{🇺🇸 Amazon54.221.0.0/16 EC2 IAD prefix}
			PTR	`ec2-54-221-97-121.compute-1.amazonaws.com`
NS	`domain-for-sale.hugedomainsdns.com`
		A	2600:1f18:683a:ae1a:399d:9289:8f5a:d9a5^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:b2bf:b486:f4a6:1954^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:c1cd:e9e9:6c95:70d2^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:ec0f:1ca0:2573:e629^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:f6dc:95b0:7323:b306^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:e625:1fe0:7cc1:c7a9^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.91.91.72^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-91-91-72.compute-1.amazonaws.com`
		A	18.209.19.208^{🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix}
			PTR	`ec2-18-209-19-208.compute-1.amazonaws.com`
		A	18.234.93.33^{🇺🇸 Amazon18.232.0.0/14 EC2 IAD prefix}
			PTR	`ec2-18-234-93-33.compute-1.amazonaws.com`
		A	54.83.120.249^{🇺🇸 Amazon54.80.0.0/14 EC2 IAD prefix}
			PTR	`ec2-54-83-120-249.compute-1.amazonaws.com`
		A	54.159.4.56^{🇺🇸 Amazon54.156.0.0/14 EC2 IAD prefix}
			PTR	`ec2-54-159-4-56.compute-1.amazonaws.com`
		A	54.167.39.172^{🇺🇸 Amazon54.167.0.0/17}
			PTR	`ec2-54-167-39-172.compute-1.amazonaws.com`
		A	184.72.150.66^{🇺🇸 Amazon184.72.128.0/17 IAD prefix}
			PTR	`ec2-184-72-150-66.compute-1.amazonaws.com`
NS	`forsale.hugedomainsdns.com`
		A	2600:1f18:683a:ae1a:3cec:428f:f959:bbcd^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:10ae:a73c:749e:ba96^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:3c36:edc7:3de8:7b2f^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:5021:20f8:8244:f353^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:5b82:63cf:22e4:811d^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:7f99:e4a9:d944:4558^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	18.208.218.58^{🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix}
			PTR	`ec2-18-208-218-58.compute-1.amazonaws.com`
		A	18.215.253.179^{🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix}
			PTR	`ec2-18-215-253-179.compute-1.amazonaws.com`
		A	52.90.107.40^{🇺🇸 Amazon52.90.0.0/15 EC2 IAD prefix}
			PTR	`ec2-52-90-107-40.compute-1.amazonaws.com`
		A	54.167.59.20^{🇺🇸 Amazon54.167.0.0/17}
			PTR	`ec2-54-167-59-20.compute-1.amazonaws.com`
		A	98.91.178.132^{🇺🇸 Amazon98.88.0.0/13 EC2 IAD prefix}
			PTR	`ec2-98-91-178-132.compute-1.amazonaws.com`
		A	100.31.89.178^{🇺🇸 Amazon100.24.0.0/13 EC2 IAD prefix}
			PTR	`ec2-100-31-89-178.compute-1.amazonaws.com`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
TXT	`v=spf1 -all`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-04-13 #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=1776097247

Same first word

concordlearning.com

DNS History

26 records (7 active, 19 former)

●NSdomain-for-sale.hugedomainsdns.com2026-02-22 → 2026-04-13 · 3 obs

○ 2017-04-10 11:26:22
● 2026-02-22 21:04:38
● 2026-04-13 16:23:08

●NSforsale.hugedomainsdns.com2026-02-22 → 2026-04-13 · 3 obs

○ 2017-04-10 11:26:22
● 2026-02-22 21:04:38
● 2026-04-13 16:23:08

●NSns1.namebrightdns.com2015-05-30 → 2026-04-13 · 2 obs

● 2015-05-30 09:47:38
● 2026-04-13 16:23:08

○NSns2.namebrightdns.com2015-05-30 → 2017-04-10 · 4 obs

● 2015-05-30 09:47:38
● 2017-04-10 11:26:22
○ 2026-02-22 21:04:38
○ 2026-04-13 16:23:08

○MXanmail.namebrightmail.com2015-05-30 → 2015-05-30 · 3 obs

● 2015-05-30 09:47:38
○ 2015-10-20 00:22:26
○ 2026-04-13 16:23:08

○A107.21.42.1422016-04-02 → 2016-04-02 · 4 obs

○ 2015-12-24 05:45:46
● 2016-04-02 08:55:14
○ 2016-09-10 16:49:08
○ 2026-04-13 16:23:08

○A107.23.160.2182015-12-24 → 2015-12-24 · 4 obs

○ 2015-10-20 00:22:26
● 2015-12-24 05:45:46
○ 2016-04-02 08:55:14
○ 2026-04-13 16:23:08

○A107.23.198.2402016-09-10 → 2016-09-10 · 4 obs

○ 2016-04-02 08:55:14
● 2016-09-10 16:49:08
○ 2017-04-10 11:26:22
○ 2026-04-13 16:23:08

●A13.223.25.842026-02-22 → 2026-04-13 · 3 obs

○ 2017-04-10 11:26:22
● 2026-02-22 21:04:38
● 2026-04-13 16:23:08

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-02-22 → 2026-04-13 · 3 obs

○ 2017-04-10 11:26:22
● 2026-02-22 21:04:38
● 2026-04-13 16:23:08

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-02-22 → 2026-04-13 · 3 obs

○ 2017-04-10 11:26:22
● 2026-02-22 21:04:38
● 2026-04-13 16:23:08

○A52.204.129.222017-04-10 → 2017-04-10 · 4 obs

○ 2016-09-10 16:49:08
● 2017-04-10 11:26:22
○ 2026-02-22 21:04:38
○ 2026-04-13 16:23:08

○A52.206.43.2342016-09-10 → 2016-09-10 · 4 obs

○ 2016-04-02 08:55:14
● 2016-09-10 16:49:08
○ 2017-04-10 11:26:22
○ 2026-04-13 16:23:08

○A52.4.72.1372016-09-10 → 2016-09-10 · 4 obs

○ 2016-04-02 08:55:14
● 2016-09-10 16:49:08
○ 2017-04-10 11:26:22
○ 2026-04-13 16:23:08

○A54.174.149.302016-04-02 → 2016-04-02 · 4 obs

○ 2015-12-24 05:45:46
● 2016-04-02 08:55:14
○ 2016-09-10 16:49:08
○ 2026-04-13 16:23:08

○A54.174.31.2542015-10-20 → 2015-10-20 · 4 obs

○ 2015-05-30 09:47:38
● 2015-10-20 00:22:26
○ 2015-12-24 05:45:46
○ 2026-04-13 16:23:08

○A54.208.74.2152015-10-20 → 2015-10-20 · 4 obs

○ 2015-05-30 09:47:38
● 2015-10-20 00:22:26
○ 2015-12-24 05:45:46
○ 2026-04-13 16:23:08

○A54.209.246.1822015-05-30 → 2015-05-30 · 3 obs

● 2015-05-30 09:47:38
○ 2026-02-22 21:04:38
○ 2026-04-13 16:23:08

○A54.209.90.812015-12-24 → 2015-12-24 · 4 obs

○ 2015-10-20 00:22:26
● 2015-12-24 05:45:46
○ 2016-04-02 08:55:14
○ 2026-04-13 16:23:08

○A54.210.33.1902016-09-10 → 2016-09-10 · 4 obs

○ 2016-04-02 08:55:14
● 2016-09-10 16:49:08
○ 2017-04-10 11:26:22
○ 2026-04-13 16:23:08

○A54.236.123.2242016-09-10 → 2016-09-10 · 4 obs

○ 2016-04-02 08:55:14
● 2016-09-10 16:49:08
○ 2017-04-10 11:26:22
○ 2026-04-13 16:23:08

●A54.243.117.1972026-02-22 → 2026-04-13 · 3 obs

○ 2017-04-10 11:26:22
● 2026-02-22 21:04:38
● 2026-04-13 16:23:08

○A54.85.127.702017-04-10 → 2017-04-10 · 4 obs

○ 2016-09-10 16:49:08
● 2017-04-10 11:26:22
○ 2026-02-22 21:04:38
○ 2026-04-13 16:23:08

○A54.85.146.1862015-05-30 → 2015-05-30 · 3 obs

● 2015-05-30 09:47:38
○ 2026-02-22 21:04:38
○ 2026-04-13 16:23:08

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-05-30 → 2016-09-10 · 4 obs

● 2015-05-30 09:47:38
● 2016-09-10 16:49:08
○ 2017-04-10 11:26:22
○ 2026-04-13 16:23:08

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-04-10 → 2017-04-10 · 4 obs

○ 2016-09-10 16:49:08
● 2017-04-10 11:26:22
○ 2026-02-22 21:04:38
○ 2026-04-13 16:23:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
concordlearning.com	domain-for-sale.hugedomainsdns.com, forsale.hugedomainsdns.com	25 records

✅ Authoritative Response

Server:54.167.59.20

NS records: domain-for-sale.hugedomainsdns.com, forsale.hugedomainsdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for concordlearning.com (unsigned zone)

⏱️ Timing

Total: 196ms | Queries: -

📄 Records

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

📌 Glue Records Collected

Total: 25

Out-of-bailiwick: 25 (domain-for-sale.hugedomainsdns.com, domain-for-sale.hugedomainsdns.com, domain-for-sale.hugedomainsdns.com...)

Analysis

IP Addresses

Four IP numbers are pointed to by concordlearning.com: 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb, 2600:1f18:4ae:c606:78d4:4260:db4e:aeee, 13.223.25.84 and 54.243.117.197.

other host names including xtrawhite.com, muramo.com, fleuroma.com, timewe.taobao.com.whoisbucket.com and 173-203-86-23.static.cloud-ips.com share IP numbers with concordlearning.com.

Name Servers

concordlearning.com is delegated to three name servers domain-for-sale.hugedomainsdns.com, forsale.hugedomainsdns.com and ns1.namebrightdns.com.

concordlearning.com at least partially shares name servers with other domains, for instance aurapm.com, tirect.com, funkydoodles.com, archnode.com and cozapp.com.

These name servers are commonly used with nsg1.namebrightdns.com, nsg2.namebrightdns.com and ns2.namebrightdns.com.

Host names with thirteen IP numbers:

domain-for-sale.hugedomainsdns.com points to: 2600:1f18:683a:ae1a:399d:9289:8f5a:d9a5, 2600:1f18:683a:ae1a:b2bf:b486:f4a6:1954, 2600:1f18:683a:ae1a:c1cd:e9e9:6c95:70d2, 2600:1f18:683a:ae1a:ec0f:1ca0:2573:e629, 2600:1f18:683a:ae1a:f6dc:95b0:7323:b306, 2600:1f18:683a:ae1b:e625:1fe0:7cc1:c7a9, 3.91.91.72, 18.209.19.208, 18.234.93.33, 54.83.120.249, 54.159.4.56, 54.167.39.172 and 184.72.150.66.

Host names with twelve IP numbers:

forsale.hugedomainsdns.com points to: 2600:1f18:683a:ae1a:3cec:428f:f959:bbcd, 2600:1f18:683a:ae1b:10ae:a73c:749e:ba96, 2600:1f18:683a:ae1b:3c36:edc7:3de8:7b2f, 2600:1f18:683a:ae1b:5021:20f8:8244:f353, 2600:1f18:683a:ae1b:5b82:63cf:22e4:811d, 2600:1f18:683a:ae1b:7f99:e4a9:d944:4558, 18.208.218.58, 18.215.253.179, 52.90.107.40, 54.167.59.20, 98.91.178.132 and 100.31.89.178.

Host names with five IP numbers:

ns1.namebrightdns.com points to: 2600:1f18:683a:ae1a:941d:603c:10ae:a55b, 2600:1f18:683a:ae1b:bf7f:1555:7f7e:bc3d, 3.87.120.121, 54.87.219.199 and 54.221.97.121.

concordlearning.com - robtex.com