`gradecentral.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:f77:89a0:bb92:5271^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:5f14:22b0:b9c3:970f^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:a510:c365:d06a:e73a^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.94.169.176^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-94-169-176.compute-1.amazonaws.com`
		A	52.91.47.137^{🇺🇸 Amazon52.90.0.0/15 EC2 IAD prefix}
			PTR	`ec2-52-91-47-137.compute-1.amazonaws.com`
NS	`domain-for-sale.hugedomainsdns.com`
		A	2600:1f18:683a:ae1a:894e:779f:a1ca:3cf5^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:e5a9:8ee2:a408:496a^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:9806:d504:f0e4:26c^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:a00e:60bf:4fb5:f5b^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:b2d2:f9bf:c31b:7e61^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.89.50.98^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-89-50-98.compute-1.amazonaws.com`
		A	3.89.209.21^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-89-209-21.compute-1.amazonaws.com`
		A	44.220.149.224^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-220-149-224.compute-1.amazonaws.com`
		A	54.88.138.42^{🇺🇸 Amazon54.88.0.0/16 EC2 IAD VPC prefix}
			PTR	`ec2-54-88-138-42.compute-1.amazonaws.com`
		A	98.81.135.11^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
			PTR	`ec2-98-81-135-11.compute-1.amazonaws.com`
NS	`forsale.hugedomainsdns.com`
		A	2600:1f18:683a:ae1a:52e5:35f4:e7f4:e1e5^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:e1f7:fcf3:dce8:5758^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1a:e842:8110:107c:b494^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:d9:7fc3:8577:c7f5^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	2600:1f18:683a:ae1b:4c22:ef5c:347c:ebc7^{🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix}
		A	3.85.217.230^{🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-85-217-230.compute-1.amazonaws.com`
		A	13.221.125.168^{🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix}
			PTR	`ec2-13-221-125-168.compute-1.amazonaws.com`
		A	18.209.34.29^{🇺🇸 Amazon18.208.0.0/13 EC2 IAD prefix}
			PTR	`ec2-18-209-34-29.compute-1.amazonaws.com`
		A	98.84.171.166^{🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix}
			PTR	`ec2-98-84-171-166.compute-1.amazonaws.com`
		A	98.93.89.251^{🇺🇸 Amazon98.88.0.0/13 EC2 IAD prefix}
			PTR	`ec2-98-93-89-251.compute-1.amazonaws.com`
TXT	`afternic-verification-G9G3tM8T8EwEizzPzjGJWF`
TXT	`v=spf1 -all`
SOA	`ns1.namebrightdns.com`dns@namebright.com 2026-03-26 #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=1774529672

Same first word

gradecentral.com

Similar names

grdentalcare.com

DNS History

21 records (7 active, 14 former)

●NSdomain-for-sale.hugedomainsdns.com2026-03-26 → 2026-03-26 · 2 obs

○ 2018-12-08 04:14:38
● 2026-03-26 13:00:04

●NSforsale.hugedomainsdns.com2026-03-26 → 2026-03-26 · 2 obs

○ 2018-12-08 04:14:38
● 2026-03-26 13:00:04

●NSns1.namebrightdns.com2015-08-18 → 2026-03-26 · 5 obs

● 2015-08-18 11:58:52
● 2016-07-04 18:11:00
○ 2017-02-11 17:45:00
● 2018-12-08 04:14:38
● 2026-03-26 13:00:04

○NSns2.namebrightdns.com2015-08-18 → 2018-12-08 · 5 obs

● 2015-08-18 11:58:52
● 2016-07-04 18:11:00
○ 2017-02-11 17:45:00
● 2018-12-08 04:14:38
○ 2026-03-26 13:00:04

○NSnst1.namebrightdns.com2017-02-11 → 2017-02-11 · 4 obs

○ 2016-07-04 18:11:00
● 2017-02-11 17:45:00
○ 2018-12-08 04:14:38
○ 2026-03-26 13:00:04

○NSnst2.namebrightdns.com2017-02-11 → 2017-02-11 · 4 obs

○ 2016-07-04 18:11:00
● 2017-02-11 17:45:00
○ 2018-12-08 04:14:38
○ 2026-03-26 13:00:04

○A107.23.198.2402016-07-04 → 2016-07-04 · 4 obs

○ 2016-03-07 04:40:10
● 2016-07-04 18:11:00
○ 2017-02-11 17:45:00
○ 2026-03-26 13:00:04

●A13.223.25.842026-03-26 → 2026-03-26 · 2 obs

○ 2018-12-08 04:14:38
● 2026-03-26 13:00:04

●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-03-26 → 2026-03-26 · 2 obs

○ 2018-12-08 04:14:38
● 2026-03-26 13:00:04

●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-03-26 → 2026-03-26 · 2 obs

○ 2018-12-08 04:14:38
● 2026-03-26 13:00:04

○A34.199.151.1632017-02-11 → 2017-02-11 · 4 obs

○ 2016-07-04 18:11:00
● 2017-02-11 17:45:00
○ 2018-12-08 04:14:38
○ 2026-03-26 13:00:04

○A52.0.96.242016-03-07 → 2016-03-07 · 4 obs

○ 2015-12-02 05:04:16
● 2016-03-07 04:40:10
○ 2016-07-04 18:11:00
○ 2026-03-26 13:00:04

○A52.20.154.32017-02-11 → 2017-02-11 · 4 obs

○ 2016-07-04 18:11:00
● 2017-02-11 17:45:00
○ 2018-12-08 04:14:38
○ 2026-03-26 13:00:04

○A52.4.72.1372016-07-04 → 2016-07-04 · 4 obs

○ 2016-03-07 04:40:10
● 2016-07-04 18:11:00
○ 2017-02-11 17:45:00
○ 2026-03-26 13:00:04

○A52.71.117.992016-03-07 → 2016-03-07 · 4 obs

○ 2015-12-02 05:04:16
● 2016-03-07 04:40:10
○ 2016-07-04 18:11:00
○ 2026-03-26 13:00:04

○A54.174.31.2542015-08-18 → 2015-12-02 · 4 obs

● 2015-08-18 11:58:52
● 2015-12-02 05:04:16
○ 2016-03-07 04:40:10
○ 2026-03-26 13:00:04

○A54.208.74.2152015-08-18 → 2015-12-02 · 4 obs

● 2015-08-18 11:58:52
● 2015-12-02 05:04:16
○ 2016-03-07 04:40:10
○ 2026-03-26 13:00:04

●A54.243.117.1972026-03-26 → 2026-03-26 · 2 obs

○ 2018-12-08 04:14:38
● 2026-03-26 13:00:04

○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2015-08-18 → 2016-07-04 · 4 obs

● 2015-08-18 11:58:52
● 2016-07-04 18:11:00
○ 2017-02-11 17:45:00
○ 2026-03-26 13:00:04

○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-02-11 → 2017-02-11 · 4 obs

○ 2016-07-04 18:11:00
● 2017-02-11 17:45:00
○ 2018-12-08 04:14:38
○ 2026-03-26 13:00:04

○CNAMEhdredirect-lb5-1afb6e2973825a56.elb.us-east-1.amazonaws.com2018-12-08 → 2018-12-08 · 3 obs

○ 2017-02-11 17:45:00
● 2018-12-08 04:14:38
○ 2026-03-26 13:00:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
gradecentral.com	domain-for-sale.hugedomainsdns.com, forsale.hugedomainsdns.com	20 records

✅ Authoritative Response

Server:13.221.125.168

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gradecentral.com (unsigned zone)

⏱️ Timing

Total: 1566ms | Queries: -

📄 Records

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

📌 Glue Records Collected

Total: 20

Out-of-bailiwick: 20 (domain-for-sale.hugedomainsdns.com, domain-for-sale.hugedomainsdns.com, domain-for-sale.hugedomainsdns.com...)

Analysis

IP Addresses

gradecentral.com refers to four IP numbers: 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, for instance gaytower.com, icils.com, ceo688.com, lamedicinaestetica.com and i78.sective.com share IP numbers with gradecentral.com.

Name Servers

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

gradecentral.com at least partially shares name servers with other domains, including hashburger.com, koreaad.com, imaft.com, earnestindia.com and ortosystem.com.

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

Host names with ten IP numbers:

domain-for-sale.hugedomainsdns.com points to: 2600:1f18:683a:ae1a:894e:779f:a1ca:3cf5, 2600:1f18:683a:ae1a:e5a9:8ee2:a408:496a, 2600:1f18:683a:ae1b:9806:d504:f0e4:26c, 2600:1f18:683a:ae1b:a00e:60bf:4fb5:f5b, 2600:1f18:683a:ae1b:b2d2:f9bf:c31b:7e61, 3.89.50.98, 3.89.209.21, 44.220.149.224, 54.88.138.42 and 98.81.135.11.

forsale.hugedomainsdns.com points to: 2600:1f18:683a:ae1a:52e5:35f4:e7f4:e1e5, 2600:1f18:683a:ae1a:e1f7:fcf3:dce8:5758, 2600:1f18:683a:ae1a:e842:8110:107c:b494, 2600:1f18:683a:ae1b:d9:7fc3:8577:c7f5, 2600:1f18:683a:ae1b:4c22:ef5c:347c:ebc7, 3.85.217.230, 13.221.125.168, 18.209.34.29, 98.84.171.166 and 98.93.89.251.

Host names with five IP numbers:

ns1.namebrightdns.com points to: 2600:1f18:683a:ae1a:f77:89a0:bb92:5271, 2600:1f18:683a:ae1a:5f14:22b0:b9c3:970f, 2600:1f18:683a:ae1b:a510:c365:d06a:e73a, 3.94.169.176 and 52.91.47.137.

gradecentral.com - robtex.com