teachingmats.com - robtex.com

teachingmats.com

DNSSEC⚠️ Not signed
A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A2600:1f18:4ae:c606:78d4:4260:db4e:aeee🇺🇸 Amazon2600:1f18::/35 AMAZON EC2 IAD prefix
A13.223.25.84🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix
A54.243.117.197🇺🇸 Amazon54.242.0.0/15 EC2 IAD prefix
NSns1.namebrightdns.com ⭐
A2600:1f18:683a:ae1a:aa86:dc69:2f3:5dbe🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:3376:e04f:851f:406c🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:a510:c365:d06a:e73a🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A52.91.47.137🇺🇸 Amazon52.90.0.0/15 EC2 IAD prefix
PTRec2-52-91-47-137.compute-1.amazonaws.com
A54.92.199.119🇺🇸 Amazon54.92.128.0/17 EC2 IAD prefix
PTRec2-54-92-199-119.compute-1.amazonaws.com
A98.83.163.23🇺🇸 Amazon98.80.0.0/13 EC2 IAD Prefix
PTRec2-98-83-163-23.compute-1.amazonaws.com
NSnsg1.namebrightdns.com
A2600:1f18:683a:ae1a:74c3:cbfa:a3e7:96a6🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:e5a9:8ee2:a408:496a🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:e842:8110:107c:b494🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:6b1c:bb29:2e34:d31d🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:8a3b:a321:9cf0:867e🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:a136:1971:9598:5d4a🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A3.95.206.203🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRec2-3-95-206-203.compute-1.amazonaws.com
A13.221.125.168🇺🇸 Amazon13.216.0.0/13 EC2 IAD prefix
PTRec2-13-221-125-168.compute-1.amazonaws.com
A44.220.149.224🇺🇸 Amazon44.192.0.0/11 EC2 IAD prefix
PTRec2-44-220-149-224.compute-1.amazonaws.com
A54.90.222.89🇺🇸 Amazon54.90.0.0/15 EC2 IAD prefix
PTRec2-54-90-222-89.compute-1.amazonaws.com
A54.221.168.107🇺🇸 Amazon54.221.0.0/16 EC2 IAD prefix
PTRec2-54-221-168-107.compute-1.amazonaws.com
A100.30.175.29🇺🇸 Amazon100.24.0.0/13 EC2 IAD prefix
PTRec2-100-30-175-29.compute-1.amazonaws.com
NSnsg2.namebrightdns.com
A2600:1f18:683a:ae1a:5de3:627d:7177:d4b4🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:922a:3e4a:4360:3081🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1a:e1f7:fcf3:dce8:5758🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:130f:6e59:4e36:8c1e🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A2600:1f18:683a:ae1b:9806:d504:f0e4:26c🇺🇸 Amazon2600:1f18:6000::/35 AMAZON EC2 IAD prefix
A3.85.217.230🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRec2-3-85-217-230.compute-1.amazonaws.com
A3.89.204.207🇺🇸 Amazon3.80.0.0/12 EC2 IAD prefix
PTRec2-3-89-204-207.compute-1.amazonaws.com
A52.87.253.163🇺🇸 Amazon52.86.0.0/15 EC2 IAD prefix
PTRec2-52-87-253-163.compute-1.amazonaws.com
A54.145.228.233🇺🇸 Amazon54.144.0.0/14 EC2 IAD NAT prefix
PTRec2-54-145-228-233.compute-1.amazonaws.com
A98.93.89.251🇺🇸 Amazon98.88.0.0/13 EC2 IAD prefix
PTRec2-98-93-89-251.compute-1.amazonaws.com
TXTv=spf1 -all
TXTafternic-verification-G9G3tM8T8EwEizzPzjGJWF
SOAns1.namebrightdns.comdns@namebright.com 2026-03-24 #1

com

DNSSEC🔒 Signed (DS record present)
NSa.gtld-servers.net ⭐
NSb.gtld-servers.net
NSc.gtld-servers.net
NSd.gtld-servers.net
NSe.gtld-servers.net
NSf.gtld-servers.net
NSg.gtld-servers.net
NSh.gtld-servers.net
NSi.gtld-servers.net
NSj.gtld-servers.net
NSk.gtld-servers.net
NSl.gtld-servers.net
NSm.gtld-servers.net
SOAa.gtld-servers.netnstld@verisign-grs.com serial=1774403912

Subdomains

mailserver.teachingmats.com

DNS History

24 records (7 active, 17 former)

200920112013201520172019202120232025NSns1.namebrightdns.comnsg1.namebrightdns.comnsg2.namebrightdns.comns1.fast-hosts.orgns1.livedns.co.ukns2.fast-hosts.orgns2.livedns.co.ukns2.namebrightdns.comns3.livedns.co.ukMXmailserver.teachingmats.comA13.223.25.842600:1f18:4ae:c605:dd5d:b838:5816:d7fb2600:1f18:4ae:c606:78d4:4260:db4e:aeee54.243.117.197107.23.198.24052.204.129.2252.206.43.23452.4.72.13754.210.33.19054.236.123.22454.85.127.7088.208.252.9CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.comhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com
○NSns1.fast-hosts.org2008-03-19 → 2008-03-19 · 3 obs
● 2008-03-19 07:08:40
○ 2015-06-25 08:45:38
○ 2026-03-25 02:18:54
○NSns1.livedns.co.uk2015-06-25 → 2015-12-01 · 5 obs
○ 2008-03-19 07:08:40
● 2015-06-25 08:45:38
● 2015-12-01 17:34:50
○ 2016-04-03 07:20:04
○ 2026-03-25 02:18:54
●NSns1.namebrightdns.com2016-09-08 → 2026-03-25 · 3 obs
○ 2016-04-03 07:20:04
● 2016-09-08 21:23:16
● 2026-03-25 02:18:54
○NSns2.fast-hosts.org2008-03-19 → 2008-03-19 · 3 obs
● 2008-03-19 07:08:40
○ 2015-06-25 08:45:38
○ 2026-03-25 02:18:54
○NSns2.livedns.co.uk2015-06-25 → 2015-12-01 · 5 obs
○ 2008-03-19 07:08:40
● 2015-06-25 08:45:38
● 2015-12-01 17:34:50
○ 2016-04-03 07:20:04
○ 2026-03-25 02:18:54
○NSns2.namebrightdns.com2016-09-08 → 2017-04-10 · 4 obs
○ 2016-04-03 07:20:04
● 2016-09-08 21:23:16
● 2017-04-10 18:44:54
○ 2026-03-25 02:18:54
○NSns3.livedns.co.uk2015-06-25 → 2015-12-01 · 5 obs
○ 2008-03-19 07:08:40
● 2015-06-25 08:45:38
● 2015-12-01 17:34:50
○ 2016-04-03 07:20:04
○ 2026-03-25 02:18:54
●NSnsg1.namebrightdns.com2026-03-25 → 2026-03-25 · 2 obs
○ 2017-04-10 18:44:54
● 2026-03-25 02:18:54
●NSnsg2.namebrightdns.com2026-03-25 → 2026-03-25 · 2 obs
○ 2017-04-10 18:44:54
● 2026-03-25 02:18:54
○MXmailserver.teachingmats.com2008-03-19 → 2015-12-01 · 4 obs
● 2008-03-19 07:08:40
● 2015-12-01 17:34:50
○ 2016-04-03 07:20:04
○ 2026-03-25 02:18:54
○A107.23.198.2402016-09-08 → 2016-09-08 · 4 obs
○ 2016-04-03 07:20:04
● 2016-09-08 21:23:16
○ 2017-04-10 18:44:54
○ 2026-03-25 02:18:54
●A13.223.25.842026-03-25 → 2026-03-25 · 2 obs
○ 2017-04-10 18:44:54
● 2026-03-25 02:18:54
●A2600:1f18:4ae:c605:dd5d:b838:5816:d7fb2026-03-25 → 2026-03-25 · 2 obs
○ 2017-04-10 18:44:54
● 2026-03-25 02:18:54
●A2600:1f18:4ae:c606:78d4:4260:db4e:aeee2026-03-25 → 2026-03-25 · 2 obs
○ 2017-04-10 18:44:54
● 2026-03-25 02:18:54
○A52.204.129.222017-04-10 → 2017-04-10 · 3 obs
○ 2016-09-08 21:23:16
● 2017-04-10 18:44:54
○ 2026-03-25 02:18:54
○A52.206.43.2342016-09-08 → 2016-09-08 · 4 obs
○ 2016-04-03 07:20:04
● 2016-09-08 21:23:16
○ 2017-04-10 18:44:54
○ 2026-03-25 02:18:54
○A52.4.72.1372016-09-08 → 2016-09-08 · 4 obs
○ 2016-04-03 07:20:04
● 2016-09-08 21:23:16
○ 2017-04-10 18:44:54
○ 2026-03-25 02:18:54
○A54.210.33.1902016-09-08 → 2016-09-08 · 4 obs
○ 2016-04-03 07:20:04
● 2016-09-08 21:23:16
○ 2017-04-10 18:44:54
○ 2026-03-25 02:18:54
○A54.236.123.2242016-09-08 → 2016-09-08 · 4 obs
○ 2016-04-03 07:20:04
● 2016-09-08 21:23:16
○ 2017-04-10 18:44:54
○ 2026-03-25 02:18:54
●A54.243.117.1972026-03-25 → 2026-03-25 · 2 obs
○ 2017-04-10 18:44:54
● 2026-03-25 02:18:54
○A54.85.127.702017-04-10 → 2017-04-10 · 3 obs
○ 2016-09-08 21:23:16
● 2017-04-10 18:44:54
○ 2026-03-25 02:18:54
○A88.208.252.92015-06-25 → 2015-12-01 · 5 obs
○ 2008-03-19 07:08:40
● 2015-06-25 08:45:38
● 2015-12-01 17:34:50
○ 2016-04-03 07:20:04
○ 2026-03-25 02:18:54
○CNAMEhdredirect-lb-399551664.us-east-1.elb.amazonaws.com2016-09-08 → 2016-09-08 · 3 obs
● 2016-09-08 21:23:16
○ 2017-04-10 18:44:54
○ 2026-03-25 02:18:54
○CNAMEhdredirect-lb3-890977680.us-east-1.elb.amazonaws.com2017-04-10 → 2017-04-10 · 3 obs
○ 2016-09-08 21:23:16
● 2017-04-10 18:44:54
○ 2026-03-25 02:18:54

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
comf.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net, e.gtld-servers.net...-
teachingmats.comnsg1.namebrightdns.com, nsg2.namebrightdns.com16 records

✅ Authoritative Response

Server:44.220.149.224

NS records: nsg1.namebrightdns.com, nsg2.namebrightdns.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teachingmats.com (unsigned zone)

⏱️ Timing

Total: 313ms | Queries: -

📄 Records

TypeCountSample Data
A213.223.25.84, 54.243.117.197
AAAA22600:1f18:4ae:c606:78d4:4260:db4e:aeee, 2600:1f18:4ae:c605:dd5d:b838:5816:d7fb
NS2nsg1.namebrightdns.com, nsg2.namebrightdns.com
TXT2afternic-verification-G9G3tM8T8EwEizzPzj, v=spf1 -all
SOA1ns1.namebrightdns.com dns.namebright.com

📌 Glue Records Collected

Total: 16

Out-of-bailiwick: 16 (nsg1.namebrightdns.com, nsg1.namebrightdns.com, nsg1.namebrightdns.com...)

Analysis

Hierarchy

mailserver.teachingmats.com is a child of teachingmats.com.

IP Addresses

teachingmats.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 8211b.yhtxgroup.com, mail.periauto.com, moodnails.com, asacar.com and barmitsva.com share IP numbers with teachingmats.com.

Name Servers

teachingmats.com is delegated to three name servers: ns1.namebrightdns.com, nsg1.namebrightdns.com and nsg2.namebrightdns.com.

teachingmats.com at least partially shares name servers with other domains, including shiftfilm.com, thewhipper.com, sempod.com, hossmfg.com and 207-144-201-195.static.cstel.net.

These name servers are commonly used with ns2.namebrightdns.com, domain-for-sale.hugedomainsdns.com and forsale.hugedomainsdns.com.

Host name nsg1.namebrightdns.com points to: 2600:1f18:683a:ae1a:74c3:cbfa:a3e7:96a6, 2600:1f18:683a:ae1a:e5a9:8ee2:a408:496a, 2600:1f18:683a:ae1a:e842:8110:107c:b494, 2600:1f18:683a:ae1b:6b1c:bb29:2e34:d31d, 2600:1f18:683a:ae1b:8a3b:a321:9cf0:867e, 2600:1f18:683a:ae1b:a136:1971:9598:5d4a, 3.95.206.203, 13.221.125.168, 44.220.149.224, 54.90.222.89, 54.221.168.107 and 100.30.175.29.

Host name nsg2.namebrightdns.com points to: 2600:1f18:683a:ae1a:5de3:627d:7177:d4b4, 2600:1f18:683a:ae1a:922a:3e4a:4360:3081, 2600:1f18:683a:ae1a:e1f7:fcf3:dce8:5758, 2600:1f18:683a:ae1b:130f:6e59:4e36:8c1e, 2600:1f18:683a:ae1b:9806:d504:f0e4:26c, 3.85.217.230, 3.89.204.207, 52.87.253.163, 54.145.228.233 and 98.93.89.251.

Host name ns1.namebrightdns.com points to: 2600:1f18:683a:ae1a:aa86:dc69:2f3:5dbe, 2600:1f18:683a:ae1b:3376:e04f:851f:406c, 2600:1f18:683a:ae1b:a510:c365:d06a:e73a, 52.91.47.137, 54.92.199.119 and 98.83.163.23.