mathlearning.org - dns.ninja

`mathlearning.org`

DNSSEC	⚠️ Not signed
A	2607:f1c0:100f:f000::2df^{🇺🇸 IONOS-AS2607:f1c0::/32 1&1 Internet Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
		PTR	`2607-f1c0-100f-f000-0000-0000-0000-02df.elastic-ssl.ui-r.com`
A	74.208.236.144^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
NS	`ns1104.ui-dns.biz` ⭐
		A	2001:8d8:fe:53:0:d9a0:5168:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1104.ui-dns.biz`
		A	217.160.81.104^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1104.ui-dns.biz`
NS	`ns1043.ui-dns.org`
		A	2001:8d8:fe:53:0:d9a0:532b:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1043.ui-dns.org`
		A	217.160.83.43^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1043.ui-dns.org`
NS	`ns1058.ui-dns.com`
		A	2001:8d8:fe:53:0:d9a0:523a:100^{🇩🇪 IONOS-AS2001:8d8:fe::/47 IONOS AS8560 anycast more specific}
			PTR	`ns1058.ui-dns.com`
		A	217.160.82.58^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1058.ui-dns.com`
NS	`ns1085.ui-dns.de`
		A	2607:f1c0:fe:53:185:132:32:85^{🇺🇸 IONOS-ANYCAST2607:f1c0:fe::/47 AS8560 global anycast services (more specific) 1&1 IONOS Inc. 701 Lee Rd, Suite 300 Chesterbrook, PA 19087 US}
			PTR	`ns1085.ui-dns.de`
		A	217.160.80.85^{🇩🇪 IONOS-AS217.160.80.0/22 AS8560 anycast more specific}
			PTR	`ns1085.ui-dns.de`
MX	`mx00.ionos.com` ⭐
		A	74.208.5.3^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx00.perfora.net`
MX	`mx01.ionos.com` ⭐
		A	74.208.5.21^{🇺🇸 IONOS-AS74.208.0.0/16 IONOS Inc.}
			PTR	`mx01.perfora.net`
TXT	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	`ns1104.ui-dns.biz`hostmaster@1und1.com 2017-06-01 #74

`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=1781345182

Same first word

mathlearning.org

mathlearning.com

mathlearning.net

mathlearning.info

Similar names

neilgrantham.com

earthlingman.com

learningmath.com

learningmath.net

DNS History

27 records (8 active, 19 former)

○NSns1.sedoparking.com2018-08-08 → 2018-08-08 · 4 obs

○ 2017-02-06 07:14:14
● 2018-08-08 13:05:24
○ 2026-04-30 11:15:52
○ 2026-06-13 10:20:10

●NSns1043.ui-dns.org2026-04-30 → 2026-06-13 · 3 obs

○ 2018-08-08 13:05:24
● 2026-04-30 11:15:52
● 2026-06-13 10:20:10

●NSns1058.ui-dns.com2026-04-30 → 2026-06-13 · 3 obs

○ 2018-08-08 13:05:24
● 2026-04-30 11:15:52
● 2026-06-13 10:20:10

●NSns1085.ui-dns.de2026-04-30 → 2026-06-13 · 3 obs

○ 2018-08-08 13:05:24
● 2026-04-30 11:15:52
● 2026-06-13 10:20:10

●NSns1104.ui-dns.biz2026-04-30 → 2026-06-13 · 3 obs

○ 2018-08-08 13:05:24
● 2026-04-30 11:15:52
● 2026-06-13 10:20:10

○NSns19.domaincontrol.com2015-06-08 → 2017-02-06 · 4 obs

● 2015-06-08 19:04:20
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

○NSns2.sedoparking.com2018-08-08 → 2018-08-08 · 4 obs

○ 2017-02-06 07:14:14
● 2018-08-08 13:05:24
○ 2026-04-30 11:15:52
○ 2026-06-13 10:20:10

○NSns20.domaincontrol.com2015-06-08 → 2017-02-06 · 4 obs

● 2015-06-08 19:04:20
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

○MXlocalhost.mx.*2018-08-08 → 2018-08-08 · 4 obs

○ 2017-02-06 07:14:14
● 2018-08-08 13:05:24
○ 2026-04-30 11:15:52
○ 2026-06-13 10:20:10

○MXmail.mathlearning.org2015-06-08 → 2016-05-07 · 4 obs

● 2015-06-08 19:04:20
● 2016-05-07 07:26:08
○ 2017-02-06 07:14:14
○ 2026-06-13 10:20:10

○MXmailstore1.secureserver.net2017-02-06 → 2017-02-06 · 4 obs

○ 2016-05-07 07:26:08
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

●MXmx00.ionos.com2026-04-30 → 2026-06-13 · 3 obs

○ 2018-08-08 13:05:24
● 2026-04-30 11:15:52
● 2026-06-13 10:20:10

●MXmx01.ionos.com2026-04-30 → 2026-06-13 · 3 obs

○ 2018-08-08 13:05:24
● 2026-04-30 11:15:52
● 2026-06-13 10:20:10

○MXsmtp.secureserver.net2017-02-06 → 2017-02-06 · 4 obs

○ 2016-05-07 07:26:08
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

○A107.180.4.1222015-06-08 → 2016-05-07 · 4 obs

● 2015-06-08 19:04:20
● 2016-05-07 07:26:08
○ 2017-02-06 07:14:14
○ 2026-06-13 10:20:10

○A184.168.221.462017-02-06 → 2017-02-06 · 4 obs

○ 2016-05-07 07:26:08
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

○A184.168.221.502017-02-06 → 2017-02-06 · 4 obs

○ 2016-05-07 07:26:08
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

○A184.168.221.512017-02-06 → 2017-02-06 · 4 obs

○ 2016-05-07 07:26:08
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

○A184.168.221.632017-02-06 → 2017-02-06 · 4 obs

○ 2016-05-07 07:26:08
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

●A2607:f1c0:100f:f000::2df2026-04-30 → 2026-06-13 · 3 obs

○ 2018-08-08 13:05:24
● 2026-04-30 11:15:52
● 2026-06-13 10:20:10

○A50.63.202.392017-02-06 → 2017-02-06 · 4 obs

○ 2016-05-07 07:26:08
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

○A50.63.202.412017-02-06 → 2017-02-06 · 4 obs

○ 2016-05-07 07:26:08
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

○A50.63.202.422017-02-06 → 2017-02-06 · 4 obs

○ 2016-05-07 07:26:08
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

○A50.63.202.462017-02-06 → 2017-02-06 · 4 obs

○ 2016-05-07 07:26:08
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

○A50.63.202.632017-02-06 → 2017-02-06 · 4 obs

○ 2016-05-07 07:26:08
● 2017-02-06 07:14:14
○ 2018-08-08 13:05:24
○ 2026-06-13 10:20:10

○A72.52.4.1192018-08-08 → 2018-08-08 · 4 obs

○ 2017-02-06 07:14:14
● 2018-08-08 13:05:24
○ 2026-04-30 11:15:52
○ 2026-06-13 10:20:10

●A74.208.236.1442026-04-30 → 2026-06-13 · 3 obs

○ 2018-08-08 13:05:24
● 2026-04-30 11:15:52
● 2026-06-13 10:20:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org	-
mathlearning.org	ns1043.ui-dns.org, ns1085.ui-dns.de, ns1058.ui-dns.com, ns1104.ui-dns.biz	2 records

✅ Authoritative Response

Server:217.160.80.85

NS records: ns1043.ui-dns.org, ns1085.ui-dns.de, ns1058.ui-dns.com, ns1104.ui-dns.biz

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathlearning.org (unsigned zone)

⏱️ Timing

Total: 569ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`74.208.236.144`
AAAA	1	`2607:f1c0:100f:f000::2df`
NS	4	`ns1104.ui-dns.biz, ns1058.ui-dns.com...`
MX	2	`mx01.ionos.com (pri: 10), mx00.ionos.com (pri: 10)`
TXT	1	`v=spf1 include:_spf-us.ionos.com ~all`
SOA	1	`ns1104.ui-dns.biz hostmaster.1und1.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns1043.ui-dns.org, ns1043.ui-dns.org)

Analysis

IP Addresses

mathlearning.org points to two IP numbers: 74.208.236.144 and 2607:f1c0:100f:f000::2df.

Two other host names, along with mywcc.org, burgessdeliverysolutions.com and smartlineglobal.com, also share IP numbers with mathlearning.org.

Name Servers

mathlearning.org is delegated to four name servers, ns1104.ui-dns.biz, ns1058.ui-dns.com, ns1085.ui-dns.de and ns1043.ui-dns.org.

mathlearning.org shares at least some of its name servers with other domains, including sporeban.com, 310xt.com, wandern-am-homertweg.de and two others.

These name servers are frequently seen alongside ns1104.ui-dns.org, ns1104.ui-dns.de, ns1104.ui-dns.com and 7 other name servers.

The host names ns1104.ui-dns.biz, ns1058.ui-dns.com, ns1085.ui-dns.de and ns1043.ui-dns.org each resolve to two IP addresses: ns1104.ui-dns.biz resolves to 217.160.81.104 and 2001:8d8:fe:53:0:d9a0:5168:100; ns1058.ui-dns.com resolves to 217.160.82.58 and 2001:8d8:fe:53:0:d9a0:523a:100; ns1085.ui-dns.de resolves to 217.160.80.85 and 2607:f1c0:fe:53:185:132:32:85; ns1043.ui-dns.org resolves to 217.160.83.43 and 2001:8d8:fe:53:0:d9a0:532b:100.

Mail Servers

mathlearning.org is served by two mail servers, mx00.ionos.com and mx01.ionos.com.

Among the domains sharing a mail server setup with mathlearning.org are chapmanit.com, thepodiummedia.com, rademacher.us and two others.

mathlearning.org shares at least some of its mail servers with other domains, such as iamsheslk.com.

mx00.ionos.com and mx01.ionos.com each resolve to one IP number: mx00.ionos.com points to 74.208.5.3 and mx01.ionos.com points to 74.208.5.21.