`openmathematics.org`

DNSSEC	⚠️ Not signed
A	3.8.9.183^{🇬🇧 Amazon3.8.0.0/14 EC2 LHR prefix}
		PTR	`ec2-3-8-9-183.eu-west-2.compute.amazonaws.com`
A	13.42.111.211^{🇬🇧 Amazon13.40.0.0/14 EC2 LHR Prefix}
A	18.169.61.169^{🇬🇧 Amazon18.168.0.0/14 EC2 LHR prefix}
NS	`ns-626.awsdns-14.net` ⭐
		A	2600:9000:5302:7200::1^{🇺🇸 Amazon2600:9000:5302::/48 - CloudFront}
			PTR	`ns-626.awsdns-14.net`
		A	205.251.194.114^{🇺🇸 Amazon205.251.194.0/24 prefix}
			PTR	`ns-626.awsdns-14.net`
NS	`ns-1061.awsdns-04.org`
		A	2600:9000:5304:2500::1^{🇺🇸 Amazon2600:9000:5304::/48 - CloudFront}
			PTR	`ns-1061.awsdns-04.org`
		A	205.251.196.37^{🇺🇸 Amazon205.251.196.0/24 prefix}
			PTR	`ns-1061.awsdns-04.org`
NS	`ns-126.awsdns-15.com`
		A	2600:9000:5300:7e00::1^{🇺🇸 Amazon2600:9000:5300::/48 - CloudFront}
			PTR	`ns-126.awsdns-15.com`
		A	205.251.192.126^{🇺🇸 Amazon205.251.192.0/24 prefix}
			PTR	`ns-126.awsdns-15.com`
NS	`ns-1766.awsdns-28.co.uk`
		A	2600:9000:5306:e600::1^{🇺🇸 Amazon2600:9000:5306::/48 - CloudFront}
			PTR	`ns-1766.awsdns-28.co.uk`
		A	205.251.198.230^{🇺🇸 Amazon205.251.198.0/24 prefix}
			PTR	`ns-1766.awsdns-28.co.uk`
MX	`mx1.emailsrvr.com` ⭐
		A	108.166.43.1^{🇺🇸 RACKSPACE-ORD108.166.0.0/18 Rackspace}
			PTR	`mx1.emailsrvr.com`
		A	146.20.161.1^{🇺🇸 RACKSPACE-IAD146.20.0.0/16 Rackspace US Inc}
			PTR	`mx1.emailsrvr.com`
		A	173.203.187.1^{🇺🇸 RACKSPACE-IAD173.203.128.0/18 Rackspace Managed Hosting, 9725 Data point drive, Suite 100, San Antonio, TX 78229}
			PTR	`mx1.emailsrvr.com`
		A	184.106.54.1^{🇺🇸 RACKSPACE-ORD184.106.54.0/24 Rackspace ORD}
			PTR	`mx1.emailsrvr.com`
MX	`mx2.emailsrvr.com`⁽²⁰⁾
		A	173.203.187.2^{🇺🇸 RACKSPACE-IAD173.203.128.0/18 Rackspace Managed Hosting, 9725 Data point drive, Suite 100, San Antonio, TX 78229}
			PTR	`mx2.emailsrvr.com`
TXT	`v=spf1 include:emailsrvr.com ~all`
SOA	`ns-626.awsdns-14.net`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=1776033533

Same first word

openmathematics.org

Similar names

mathematicsopen.com

DNS History

19 records (9 active, 10 former)

●NSns-1061.awsdns-04.org2026-02-18 → 2026-04-12 · 3 obs

○ 2018-09-12 07:44:08
● 2026-02-18 12:10:08
● 2026-04-12 22:58:22

●NSns-126.awsdns-15.com2026-02-18 → 2026-04-12 · 3 obs

○ 2018-09-12 07:44:08
● 2026-02-18 12:10:08
● 2026-04-12 22:58:22

○NSns-1403.awsdns-47.org2018-09-12 → 2018-09-12 · 4 obs

○ 2017-02-03 01:35:28
● 2018-09-12 07:44:08
○ 2026-02-18 12:10:08
○ 2026-04-12 22:58:22

○NSns-1760.awsdns-28.co.uk2018-09-12 → 2018-09-12 · 4 obs

○ 2017-02-03 01:35:28
● 2018-09-12 07:44:08
○ 2026-02-18 12:10:08
○ 2026-04-12 22:58:22

●NSns-1766.awsdns-28.co.uk2026-02-18 → 2026-04-12 · 3 obs

○ 2018-09-12 07:44:08
● 2026-02-18 12:10:08
● 2026-04-12 22:58:22

○NSns-234.awsdns-29.com2018-09-12 → 2018-09-12 · 4 obs

○ 2017-02-03 01:35:28
● 2018-09-12 07:44:08
○ 2026-02-18 12:10:08
○ 2026-04-12 22:58:22

●NSns-626.awsdns-14.net2026-02-18 → 2026-04-12 · 3 obs

○ 2018-09-12 07:44:08
● 2026-02-18 12:10:08
● 2026-04-12 22:58:22

○NSns-710.awsdns-24.net2018-09-12 → 2018-09-12 · 4 obs

○ 2017-02-03 01:35:28
● 2018-09-12 07:44:08
○ 2026-02-18 12:10:08
○ 2026-04-12 22:58:22

○NSns.namespace4you.de2015-08-07 → 2016-06-20 · 4 obs

● 2015-08-07 22:59:14
● 2016-06-20 18:12:42
○ 2017-02-03 01:35:28
○ 2026-04-12 22:58:22

○NSns2.namespace4you.de2015-08-07 → 2016-06-20 · 4 obs

● 2015-08-07 22:59:14
● 2016-06-20 18:12:42
○ 2017-02-03 01:35:28
○ 2026-04-12 22:58:22

●MXmx1.emailsrvr.com2018-09-12 → 2026-04-12 · 3 obs

○ 2017-02-03 01:35:28
● 2018-09-12 07:44:08
● 2026-04-12 22:58:22

●MXmx2.emailsrvr.com2018-09-12 → 2026-04-12 · 3 obs

○ 2017-02-03 01:35:28
● 2018-09-12 07:44:08
● 2026-04-12 22:58:22

○MXmxlb.ispgateway.de2015-08-07 → 2016-06-20 · 4 obs

● 2015-08-07 22:59:14
● 2016-06-20 18:12:42
○ 2017-02-03 01:35:28
○ 2026-04-12 22:58:22

●A13.42.111.2112026-02-18 → 2026-04-12 · 3 obs

○ 2018-09-12 07:44:08
● 2026-02-18 12:10:08
● 2026-04-12 22:58:22

○A141.0.17.1362015-08-07 → 2016-06-20 · 4 obs

● 2015-08-07 22:59:14
● 2016-06-20 18:12:42
○ 2017-02-03 01:35:28
○ 2026-04-12 22:58:22

●A18.169.61.1692026-02-18 → 2026-04-12 · 3 obs

○ 2018-09-12 07:44:08
● 2026-02-18 12:10:08
● 2026-04-12 22:58:22

○A2a00:1158:0:406:a247::12015-08-07 → 2016-06-20 · 4 obs

● 2015-08-07 22:59:14
● 2016-06-20 18:12:42
○ 2017-02-03 01:35:28
○ 2026-04-12 22:58:22

●A3.8.9.1832026-02-18 → 2026-04-12 · 3 obs

○ 2018-09-12 07:44:08
● 2026-02-18 12:10:08
● 2026-04-12 22:58:22

○A52.14.152.2182018-09-12 → 2018-09-12 · 4 obs

○ 2017-02-03 01:35:28
● 2018-09-12 07:44:08
○ 2026-02-18 12:10:08
○ 2026-04-12 22:58:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
openmathematics.org	ns-126.awsdns-15.com, ns-626.awsdns-14.net, ns-1061.awsdns-04.org, ns-1766.awsdns-28.co.uk	1 record

✅ Authoritative Response

Server:205.251.194.114

NS records: ns-126.awsdns-15.com, ns-626.awsdns-14.net, ns-1061.awsdns-04.org, ns-1766.awsdns-28.co.uk

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for openmathematics.org (unsigned zone)

⏱️ Timing

Total: 463ms | Queries: -

📄 Records

Type	Count	Sample Data
A	3	`18.169.61.169, 3.8.9.183...`
NS	4	`ns-1061.awsdns-04.org, ns-126.awsdns-15.com...`
MX	2	`mx1.emailsrvr.com (pri: 10), mx2.emailsrvr.com (pri: 20)`
TXT	1	`v=spf1 include:emailsrvr.com ~all`
SOA	1	`ns-626.awsdns-14.net awsdns-hostmaster.a`

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-1061.awsdns-04.org)

Analysis

IP Addresses

openmathematics.org resolves to three IP numbers: 3.8.9.183, 13.42.111.211 and 18.169.61.169.

Name Servers

openmathematics.org is delegated to four name servers: ns-126.awsdns-15.com, ns-626.awsdns-14.net, ns-1061.awsdns-04.org and ns-1766.awsdns-28.co.uk.

openmathematics.org shares some name servers with other domains, for example imyft.com, mowens.com, penta-cube.com, acmesign.ca and interviewstream.jp.

Host names with two IP numbers

Two IPs per host:

ns-126.awsdns-15.com points to 2600:9000:5300:7e00::1 and 205.251.192.126

ns-626.awsdns-14.net points to 2600:9000:5302:7200::1 and 205.251.194.114

ns-1061.awsdns-04.org points to 2600:9000:5304:2500::1 and 205.251.196.37

ns-1766.awsdns-28.co.uk points to 2600:9000:5306:e600::1 and 205.251.198.230

Mail Servers

openmathematics.org is served by two mail servers: mx1.emailsrvr.com and mx2.emailsrvr.com.

openmathematics.org shares the mail server setup with other domains, for example animationx.com, twintownvilla.com, prattandwhitney.com, asfoutdoor.com and theleader.lk.

openmathematics.org shares some mail servers with other domains, at least partially; for instance omnirehab.net, barronumc.com, puntodeinicio.com.mx, buzonweb.com.mx and bamfg.com.

Host names with four IP numbers:

mx1.emailsrvr.com points to: 108.166.43.1, 146.20.161.1, 173.203.187.1 and 184.106.54.1.

Host names with one IP number:

mx2.emailsrvr.com points to: 173.203.187.2.

openmathematics.org - robtex.com