`gradcentral.org`

DNSSEC	⚠️ Not signed
A	192.189.112.185^{🇺🇸 JOSTENS_INC192.189.112.0/24 Proxy Add for Charter Customer Jostens}
NS	`udns1.cscdns.net` ⭐
		A	2001:502:f3ff::201^{🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar}
			PTR	`edns1.ultradns.com`
			PTR	`udns1.cscdns.net`
			PTR	`udns1.cscdns.uk`
			PTR	`ns1.webipdns.com.au`
		A	204.74.66.1^{🇺🇸 MAINT-ID-12008204.74.66.0/24 Neustar}
			PTR	`ns1.alba.bank`
			PTR	`edns1.ultradns.com`
			PTR	`udns1.cscdns.net`
			PTR	`udns1.cscdns.uk`
			PTR	`ns1.webipdns.com.au`
NS	`udns2.cscdns.uk`
		A	2001:502:4612::201^{🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar}
			PTR	`udns2.cscdns.net`
			PTR	`edns1.ultradns.org`
			PTR	`udns2.cscdns.uk`
			PTR	`ns2.webipdns.com.au`
		A	204.74.111.1^{🇺🇸 MAINT-ID-12008204.74.111.0/24 Neustar}
			PTR	`ns2.alba.bank`
			PTR	`udns2.cscdns.net`
			PTR	`edns1.ultradns.org`
			PTR	`udns2.cscdns.uk`
			PTR	`ns2.webipdns.com.au`
MX	`p.webcom.ctmail.com` ⭐
		A	216.163.188.190
SOA	`udns1.cscdns.net`hostmaster@cscdns.net 2019-10-11 #7

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1774535406

Same first word

gradcentral.net

gradcentral.org

Similar names

dgcarrental.com.mx

dragcentral.com

dragcentral.net

DNS History

8 records (4 active, 4 former)

○NSdns1.cscdns.net2016-07-02 → 2017-02-14 · 5 obs

○ 2016-03-06 23:03:22
● 2016-07-02 02:02:08
● 2017-02-14 12:41:44
○ 2026-02-21 15:24:34
○ 2026-03-26 14:54:02

○NSdns2.cscdns.net2016-07-02 → 2017-02-14 · 5 obs

○ 2016-03-06 23:03:22
● 2016-07-02 02:02:08
● 2017-02-14 12:41:44
○ 2026-02-21 15:24:34
○ 2026-03-26 14:54:02

○NSns81.worldnic.com2015-08-12 → 2016-03-06 · 4 obs

● 2015-08-12 02:05:52
● 2016-03-06 23:03:22
○ 2016-07-02 02:02:08
○ 2026-03-26 14:54:02

○NSns82.worldnic.com2015-08-12 → 2016-03-06 · 4 obs

● 2015-08-12 02:05:52
● 2016-03-06 23:03:22
○ 2016-07-02 02:02:08
○ 2026-03-26 14:54:02

●NSudns1.cscdns.net2026-02-21 → 2026-03-26 · 3 obs

○ 2017-02-14 12:41:44
● 2026-02-21 15:24:34
● 2026-03-26 14:54:02

●NSudns2.cscdns.uk2026-02-21 → 2026-03-26 · 3 obs

○ 2017-02-14 12:41:44
● 2026-02-21 15:24:34
● 2026-03-26 14:54:02

●MXp.webcom.ctmail.com2015-11-29 → 2026-03-26 · 2 obs

● 2015-11-29 15:47:12
● 2026-03-26 14:54:02

●A192.189.112.1852015-08-12 → 2026-03-26 · 2 obs

● 2015-08-12 02:05:52
● 2026-03-26 14:54:02

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org	-
gradcentral.org	udns2.cscdns.uk, udns1.cscdns.net	-

✅ Authoritative Response

Server:204.74.66.1

NS records: udns2.cscdns.uk, udns1.cscdns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for gradcentral.org (unsigned zone)

⏱️ Timing

Total: 109ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`192.189.112.185`
NS	2	`udns1.cscdns.net, udns2.cscdns.uk`
MX	1	`p.webcom.ctmail.com (pri: 10)`
SOA	1	`udns1.cscdns.net hostmaster.cscdns.net`

Analysis

IP Addresses

gradcentral.org points to IP number 192.189.112.185.

For instance, other host names jostensringdesigner.net, www.jostens.info, www.jostensrings.net, www.jostens.com.pt and www.jostens.ca share IP numbers with gradcentral.org.

Name Servers

gradcentral.org is delegated to two name servers: udns1.cscdns.net and udns2.cscdns.uk.

gradcentral.org uses the same name server setup as other domains such as ambea.com, lincolnelectricuttingsystems.biz, firstpremierbank-email.com, starsmax.net and irobot.com.ec.

gradcentral.org shares name servers with other domains at least partially, for instance skavaone.com and electroluxfamilystore.com.

Host names with two IP numbers:

udns1.cscdns.net points to 2001:502:f3ff::201 and 204.74.66.1; udns2.cscdns.uk points to 2001:502:4612::201 and 204.74.111.1.

Mail Servers

gradcentral.org is handled by a single mail server, p.webcom.ctmail.com.

gradcentral.org shares the same mail server setup as other domains, for instance natlww.com, belliniantiques.com, coradvantage.org, storeguys.com and hersonshonda.com.

gradcentral.org shares at least partially some mail servers with other domains, for instance sisot.com.

p.webcom.ctmail.com points to a single IP: 216.163.188.190.

gradcentral.org - robtex.com

gradcentral.org

org