`certkor.org`

DNSSEC	⚠️ Not signed
A	3.167.37.39^{🇺🇸 Amazon3.167.32.0/21}
		PTR	`server-3-167-37-39.iad61.r.cloudfront.net`
A	3.167.37.47^{🇺🇸 Amazon3.167.32.0/21}
A	3.167.37.96^{🇺🇸 Amazon3.167.32.0/21}
A	3.167.37.125^{🇺🇸 Amazon3.167.32.0/21}
NS	`ns-1372.awsdns-43.org` ⭐
		A	2600:9000:5305:5c00::1^{🇺🇸 Amazon2600:9000:5305::/48 - CloudFront}
			PTR	`ns-1372.awsdns-43.org`
		A	205.251.197.92^{🇺🇸 Amazon205.251.197.0/24 prefix}
			PTR	`ns-1372.awsdns-43.org`
NS	`ns-173.awsdns-21.com`
		A	2600:9000:5300:ad00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-173.awsdns-21.com`
		A	205.251.192.173^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-173.awsdns-21.com`
NS	`ns-1893.awsdns-44.co.uk`
		A	2600:9000:5307:6500::1^{🇺🇸 Amazon2600:9000:5307::/48 - CloudFront}
			PTR	`ns-1893.awsdns-44.co.uk`
		A	205.251.199.101^{🇺🇸 Amazon205.251.199.0/24 prefix}
			PTR	`ns-1893.awsdns-44.co.uk`
NS	`ns-933.awsdns-52.net`
		A	2600:9000:5303:a500::1^{🇺🇸 Amazon2600:9000:5303::/48 - CloudFront}
			PTR	`ns-933.awsdns-52.net`
		A	205.251.195.165^{🇺🇸 Amazon205.251.195.0/24 prefix}
			PTR	`ns-933.awsdns-52.net`
MX	`inbound-smtp.us-east-1.amazonaws.com` ⭐
		A	3.211.210.226^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-211-210-226.compute-1.amazonaws.com`
		A	44.206.9.87^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-206-9-87.compute-1.amazonaws.com`
		A	44.210.166.32^{🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix}
			PTR	`ec2-44-210-166-32.compute-1.amazonaws.com`
		A	54.164.173.191^{🇺🇸 Amazon54.164.0.0/15 EC2 IAD prefix}
			PTR	`ec2-54-164-173-191.compute-1.amazonaws.com`
		A	54.197.5.236^{🇺🇸 Amazon54.196.0.0/15 EC2 IAD 54.196.0.0/15}
			PTR	`ec2-54-197-5-236.compute-1.amazonaws.com`
TXT	`d7ec16c3-45ee-4ba5-86e1-a89956b5c659`
SOA	`ns-1372.awsdns-43.org`awsdns-hostmaster@amazon.com serial=1

`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=1771291736

Same first word

certkor.org

Similar names

rocketr.net

torreck.dk

terrock.com.au

recktor.com

korrect.net

korrect.nl

trocker.it

correkt.ai

correkt.com

treckor.com

corrtek.com

rrocket.com

trocker.com

correkt.de

korrtec.de

trcroke.com

korrect.com

rockert.se

rrocket.in

terrock.com

coretrk.com

correkt.se

DNS History

27 records (9 active, 18 former)

●NSns-1372.awsdns-43.org2017-04-08 → 2026-02-28 · 3 obs

○ 2016-06-28 16:43:58
● 2017-04-08 11:08:56
● 2026-02-28 15:51:06

●NSns-173.awsdns-21.com2017-04-08 → 2026-02-28 · 3 obs

○ 2016-06-28 16:43:58
● 2017-04-08 11:08:56
● 2026-02-28 15:51:06

●NSns-1893.awsdns-44.co.uk2017-04-08 → 2026-02-28 · 3 obs

○ 2016-06-28 16:43:58
● 2017-04-08 11:08:56
● 2026-02-28 15:51:06

●NSns-933.awsdns-52.net2017-04-08 → 2026-02-28 · 3 obs

○ 2016-06-28 16:43:58
● 2017-04-08 11:08:56
● 2026-02-28 15:51:06

○NSns1.digitalocean.com2015-08-01 → 2016-06-28 · 4 obs

● 2015-08-01 08:26:36
● 2016-06-28 16:43:58
○ 2017-04-08 11:08:56
○ 2026-02-28 15:51:06

○NSns2.digitalocean.com2015-08-01 → 2016-06-28 · 4 obs

● 2015-08-01 08:26:36
● 2016-06-28 16:43:58
○ 2017-04-08 11:08:56
○ 2026-02-28 15:51:06

○NSns3.digitalocean.com2015-08-01 → 2016-06-28 · 4 obs

● 2015-08-01 08:26:36
● 2016-06-28 16:43:58
○ 2017-04-08 11:08:56
○ 2026-02-28 15:51:06

●MXinbound-smtp.us-east-1.amazonaws.com2026-02-21 → 2026-02-28 · 3 obs

○ 2017-04-08 11:08:56
● 2026-02-21 13:30:36
● 2026-02-28 15:51:06

○MXmail.certkor.org2015-08-01 → 2016-06-28 · 4 obs

● 2015-08-01 08:26:36
● 2016-06-28 16:43:58
○ 2017-04-08 11:08:56
○ 2026-02-28 15:51:06

○A13.224.95.1002026-02-21 → 2026-02-28 · 13 obs

○ 2017-04-08 11:08:56
● 2026-02-21 13:30:36
● 2026-02-21 14:53:26
○ 2026-02-22 00:08:00
● 2026-02-22 02:42:30
● 2026-02-23 02:44:38
○ 2026-02-23 07:16:52
● 2026-02-23 14:39:30
○ 2026-02-24 00:10:46
○ 2026-02-24 16:21:02
● 2026-02-24 17:14:52
● 2026-02-28 13:05:48
○ 2026-02-28 15:51:06

○A13.224.95.402026-02-21 → 2026-02-28 · 13 obs

○A13.224.95.492026-02-21 → 2026-02-28 · 13 obs

○A13.224.95.532026-02-21 → 2026-02-28 · 13 obs

○A18.155.129.1082026-02-23 → 2026-02-23 · 4 obs

○ 2026-02-23 02:44:38
● 2026-02-23 07:16:52
○ 2026-02-23 14:39:30
○ 2026-02-28 15:51:06

○A18.155.129.362026-02-23 → 2026-02-23 · 4 obs

○ 2026-02-23 02:44:38
● 2026-02-23 07:16:52
○ 2026-02-23 14:39:30
○ 2026-02-28 15:51:06

○A18.155.129.552026-02-23 → 2026-02-23 · 4 obs

○ 2026-02-23 02:44:38
● 2026-02-23 07:16:52
○ 2026-02-23 14:39:30
○ 2026-02-28 15:51:06

○A18.155.129.932026-02-23 → 2026-02-23 · 4 obs

○ 2026-02-23 02:44:38
● 2026-02-23 07:16:52
○ 2026-02-23 14:39:30
○ 2026-02-28 15:51:06

○A188.226.157.932015-08-01 → 2016-06-28 · 4 obs

● 2015-08-01 08:26:36
● 2016-06-28 16:43:58
○ 2017-04-08 11:08:56
○ 2026-02-28 15:51:06

●A3.167.37.1252026-02-22 → 2026-02-28 · 9 obs

○ 2026-02-21 14:53:26
● 2026-02-22 00:08:00
○ 2026-02-22 02:42:30
○ 2026-02-23 14:39:30
● 2026-02-24 00:10:46
● 2026-02-24 16:21:02
○ 2026-02-24 17:14:52
○ 2026-02-28 13:05:48
● 2026-02-28 15:51:06

●A3.167.37.392026-02-22 → 2026-02-28 · 9 obs

●A3.167.37.472026-02-22 → 2026-02-28 · 9 obs

●A3.167.37.962026-02-22 → 2026-02-28 · 9 obs

○A52.216.81.102017-04-08 → 2017-04-08 · 4 obs

○ 2016-06-28 16:43:58
● 2017-04-08 11:08:56
○ 2026-02-21 13:30:36
○ 2026-02-28 15:51:06

○A52.84.20.1102026-02-21 → 2026-02-28 · 2 obs

○ 2026-02-21 13:30:36
○ 2026-02-28 15:51:06

○A52.84.20.432026-02-21 → 2026-02-28 · 2 obs

○ 2026-02-21 13:30:36
○ 2026-02-28 15:51:06

○A52.84.20.712026-02-21 → 2026-02-28 · 2 obs

○ 2026-02-21 13:30:36
○ 2026-02-28 15:51:06

○A52.84.20.742026-02-21 → 2026-02-28 · 2 obs

○ 2026-02-21 13:30:36
○ 2026-02-28 15:51:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
certkor.org	ns-1372.awsdns-43.org, ns-173.awsdns-21.com, ns-933.awsdns-52.net, ns-1893.awsdns-44.co.uk	1 record

✅ Authoritative Response

Server: 205.251.199.101

NS records: ns-1372.awsdns-43.org, ns-173.awsdns-21.com, ns-933.awsdns-52.net, ns-1893.awsdns-44.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for certkor.org (unsigned zone)

⏱️ Timing

Total: 534ms | Queries: -

📄 Records

Type	Count	Sample Data
A	4	`3.167.37.47, 3.167.37.96...`
NS	4	`ns-1372.awsdns-43.org, ns-173.awsdns-21.com...`
MX	1	`inbound-smtp.us-east-1.amazonaws.com (pr`
TXT	1	`d7ec16c3-45ee-4ba5-86e1-a89956b5c659`
SOA	1	`ns-1372.awsdns-43.org awsdns-hostmaster.`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-1372.awsdns-43.org)

Analysis

IP Addresses

certkor.org resolves to four IPs: 3.167.37.39, 3.167.37.47, 3.167.37.96 and 3.167.37.125.

Other host names, for instance cdn.api.virtusize.jp, bobflorian.com, ricohsoftware.com, nikevogue.com and gqo0zuv4ff.execute-api.us-west-2.amazonaws.com share IP numbers with certkor.org.

Name Servers

certkor.org is delegated to four name servers: ns-173.awsdns-21.com, ns-933.awsdns-52.net, ns-1372.awsdns-43.org and ns-1893.awsdns-44.co.uk.

certkor.org shares some name servers with other domains, for example gotwings.dk, cgimaera.com, arizonaschoolofrealestate.biz, ca-tools.org and flatironstech.com.

Host names with two IP numbers

Two IPs per host:

ns-173.awsdns-21.com points to 2600:9000:5300:ad00::1 and 205.251.192.173

ns-933.awsdns-52.net points to 2600:9000:5303:a500::1 and 205.251.195.165

ns-1372.awsdns-43.org points to 2600:9000:5305:5c00::1 and 205.251.197.92

ns-1893.awsdns-44.co.uk points to 2600:9000:5307:6500::1 and 205.251.199.101

Mail Servers

certkor.org is handled by a single mail server, inbound-smtp.us-east-1.amazonaws.com.

certkor.org shares the mail server setup with other domains, for example crecganford.com, spreadsheetcomparisondecision.com, vpartners.slack.com, kazmihealth.com and iuiccarolinasnm.slack.com.

certkor.org shares some mail servers with other domains, at least partially; for instance ihgamericas.atlassian.net, transloc.atlassian.net, simonreid.atlassian.net, onecom.atlassian.net and tudopelofutebol.com.

these mail servers are commonly used alongside inbound-smtp.us-west-2.amazonaws.com, aspmx.l.google.com and alt1.aspmx.l.google.com.

The host name inbound-smtp.us-east-1.amazonaws.com points to five IP numbers: 3.211.210.226, 44.206.9.87, 44.210.166.32, 54.164.173.191 and 54.197.5.236.

certkor.org - robtex.com

certkor.org

org

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

IP Addresses

Name Servers

Mail Servers

`certkor.org`

`org`