teachersguild.org - robtex.com

teachersguild.org

DNSSEC⚠️ Not signed
A75.2.70.75🇺🇸 Amazon75.2.64.0/20
PTRaacb0a264e514dd48.awsglobalaccelerator.com
A99.83.190.102🇺🇸 Amazon99.83.176.0/20
NSns1-05.azure-dns.com ⭐
A2603:1061:0:700::5🇺🇸 Microsoft2603:1000::/25 MICROSOFT
PTRns1-05.azure-dns.com
A13.107.236.5🇺🇸 Microsoft13.104.0.0/14 MICROSOFT
PTRns1-05.azure-dns.com
NSns2-05.azure-dns.net
A2620:1ec:8ec:700::5🇺🇸 Microsoft2620:1ec::/36 MICROSOFT
PTRns2-05.azure-dns.net
A150.171.21.5🇺🇸 Microsoft150.171.0.0/16 MICROSOFT
PTRns2-05.azure-dns.net
NSns3-05.azure-dns.org
A2a01:111:4000:700::5🇬🇧 Microsoft2a01:111:4000::/36
PTRns3-05.azure-dns.org
A204.14.183.5🇺🇸 Microsoft204.14.180.0/22
PTRns3-05.azure-dns.org
NSns4-05.azure-dns.info
A2620:1ec:bda:700::5🇺🇸 Microsoft2620:1ec::/36 MICROSOFT
PTRns4-05.azure-dns.info
A208.84.5.5🇺🇸 Microsoft208.84.0.0/21 MICROSOFT
PTRns4-05.azure-dns.info
MXaspmx.l.google.com ⭐
A2607:f8b0:4004:c2d::1b🇺🇸 Google2607:f8b0:4004::/48
PTRry-in-f27.1e100.net
A172.253.115.27🇺🇸 Google172.253.115.0/24
PTRbg-in-f27.1e100.net
MXalt1.aspmx.l.google.com(5)
A2800:3f0:4003:c0f::1a🇨🇱 Google2800:3f0:4003::/48
A108.177.123.27🇺🇸 Google108.177.123.0/24
PTRlcscld-in-f27.1e100.net
MXalt2.aspmx.l.google.com(5)
A2a00:1450:400b:c01::1a🇮🇪 Google2a00:1450:400b::/48
PTRdi-in-f26.1e100.net
A74.125.193.26🇺🇸 Google74.125.193.0/24
PTRdi-in-f26.1e100.net
PTRig-in-f26.1e100.net
MXalt3.aspmx.l.google.com(10)
A2a00:1450:4009:c0f::1a🇬🇧 Google2a00:1450:4009::/48
PTRyulhrs-in-f26.1e100.net
A192.178.223.26🇺🇸 Google192.178.223.0/24
PTRyulhrs-in-f26.1e100.net
MXalt4.aspmx.l.google.com(10)
A2a00:1450:400c:c23::1b🇧🇪 Google2a00:1450:400c::/48
PTRyubrupd-in-f27.1e100.net
A172.253.157.26🇺🇸 Google172.253.0.0/16
PTRyubrupd-in-f26.1e100.net
TXTv=spf1 mx ip4:23.21.69.41 a:relay.oiengine.com include:amazonses.com include:...
TXTgoogle-site-verification=SKG1N_rKScuFo-eETE94Z2QOW9juZICwCfklJdrrmM4
SOAns1-05.azure-dns.comazuredns-hostmaster@microsoft.com serial=1

org

DNSSEC🔒 Signed (DS record present)
NSa0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation
NSa2.org.afilias-nst.info ⚠️ Not in parent delegation
NSb0.org.afilias-nst.org
NSb2.org.afilias-nst.org
NSc0.org.afilias-nst.info ⚠️ Not in parent delegation
NSd0.org.afilias-nst.org
SOAa0.org.afilias-nst.infohostmaster@donuts.email serial=1785503089

Subdomains

www.teachersguild.org

Same first word

teachersguild.org

DNS History

29 records (11 active, 18 former)

20162017201820192020202120222023202420252026NSns1-05.azure-dns.comns2-05.azure-dns.netns3-05.azure-dns.orgns4-05.azure-dns.infoivan.ns.cloudflare.comlara.ns.cloudflare.comns-1511.awsdns-60.orgns-1706.awsdns-21.co.ukns-361.awsdns-45.comns-522.awsdns-01.netMXalt1.aspmx.l.google.comalt2.aspmx.l.google.comalt3.aspmx.l.google.comalt4.aspmx.l.google.comaspmx.l.google.comatl1.aspmx.l.google.comA75.2.70.7599.83.190.102104.18.38.246104.18.39.246107.20.197.123184.73.182.15423.21.216.13523.21.223.15350.18.221.14150.19.248.14654.193.106.15354.243.100.11054.243.104.83
○NSivan.ns.cloudflare.com2016-01-28 → 2016-05-06 · 5 obs
○ 2015-08-17 01:34:52
● 2016-01-28 03:25:14
● 2016-05-06 14:48:44
○ 2016-11-08 09:26:22
○ 2026-07-31 13:29:56
○NSlara.ns.cloudflare.com2016-01-28 → 2016-05-06 · 5 obs
○ 2015-08-17 01:34:52
● 2016-01-28 03:25:14
● 2016-05-06 14:48:44
○ 2016-11-08 09:26:22
○ 2026-07-31 13:29:56
○NSns-1511.awsdns-60.org2015-08-17 → 2017-08-26 · 7 obs
● 2015-08-17 01:34:52
○ 2016-01-28 03:25:14
○ 2016-05-06 14:48:44
● 2016-11-08 09:26:22
● 2017-08-26 19:35:08
○ 2026-03-17 09:22:54
○ 2026-07-31 13:29:56
○NSns-1706.awsdns-21.co.uk2015-08-17 → 2017-08-26 · 7 obs
● 2015-08-17 01:34:52
○ 2016-01-28 03:25:14
○ 2016-05-06 14:48:44
● 2016-11-08 09:26:22
● 2017-08-26 19:35:08
○ 2026-03-17 09:22:54
○ 2026-07-31 13:29:56
○NSns-361.awsdns-45.com2015-08-17 → 2017-08-26 · 7 obs
● 2015-08-17 01:34:52
○ 2016-01-28 03:25:14
○ 2016-05-06 14:48:44
● 2016-11-08 09:26:22
● 2017-08-26 19:35:08
○ 2026-03-17 09:22:54
○ 2026-07-31 13:29:56
○NSns-522.awsdns-01.net2015-08-17 → 2017-08-26 · 7 obs
● 2015-08-17 01:34:52
○ 2016-01-28 03:25:14
○ 2016-05-06 14:48:44
● 2016-11-08 09:26:22
● 2017-08-26 19:35:08
○ 2026-03-17 09:22:54
○ 2026-07-31 13:29:56
●NSns1-05.azure-dns.com2026-03-17 → 2026-07-31 · 3 obs
○ 2017-08-26 19:35:08
● 2026-03-17 09:22:54
● 2026-07-31 13:29:56
●NSns2-05.azure-dns.net2026-03-17 → 2026-07-31 · 3 obs
○ 2017-08-26 19:35:08
● 2026-03-17 09:22:54
● 2026-07-31 13:29:56
●NSns3-05.azure-dns.org2026-03-17 → 2026-07-31 · 3 obs
○ 2017-08-26 19:35:08
● 2026-03-17 09:22:54
● 2026-07-31 13:29:56
●NSns4-05.azure-dns.info2026-03-17 → 2026-07-31 · 3 obs
○ 2017-08-26 19:35:08
● 2026-03-17 09:22:54
● 2026-07-31 13:29:56
●MXalt1.aspmx.l.google.com2026-03-17 → 2026-07-31 · 3 obs
○ 2017-08-26 19:35:08
● 2026-03-17 09:22:54
● 2026-07-31 13:29:56
●MXalt2.aspmx.l.google.com2015-08-17 → 2026-07-31 · 2 obs
● 2015-08-17 01:34:52
● 2026-07-31 13:29:56
●MXalt3.aspmx.l.google.com2015-08-17 → 2026-07-31 · 2 obs
● 2015-08-17 01:34:52
● 2026-07-31 13:29:56
●MXalt4.aspmx.l.google.com2015-08-17 → 2026-07-31 · 2 obs
● 2015-08-17 01:34:52
● 2026-07-31 13:29:56
●MXaspmx.l.google.com2015-08-17 → 2026-07-31 · 2 obs
● 2015-08-17 01:34:52
● 2026-07-31 13:29:56
○MXatl1.aspmx.l.google.com2015-08-17 → 2017-08-26 · 4 obs
● 2015-08-17 01:34:52
● 2017-08-26 19:35:08
○ 2026-03-17 09:22:54
○ 2026-07-31 13:29:56
○A104.18.38.2462016-01-28 → 2016-05-06 · 5 obs
○ 2015-08-17 01:34:52
● 2016-01-28 03:25:14
● 2016-05-06 14:48:44
○ 2016-11-08 09:26:22
○ 2026-07-31 13:29:56
○A104.18.39.2462016-01-28 → 2016-05-06 · 5 obs
○ 2015-08-17 01:34:52
● 2016-01-28 03:25:14
● 2016-05-06 14:48:44
○ 2016-11-08 09:26:22
○ 2026-07-31 13:29:56
○A107.20.197.1232016-11-08 → 2016-12-28 · 5 obs
○ 2016-05-06 14:48:44
● 2016-11-08 09:26:22
● 2016-12-28 05:09:42
○ 2017-06-27 16:41:48
○ 2026-07-31 13:29:56
○A184.73.182.1542017-06-27 → 2017-08-26 · 5 obs
○ 2016-12-28 05:09:42
● 2017-06-27 16:41:48
● 2017-08-26 19:35:08
○ 2026-03-17 09:22:54
○ 2026-07-31 13:29:56
○A23.21.216.1352017-07-09 → 2017-08-26 · 5 obs
○ 2017-06-27 16:41:48
● 2017-07-09 04:42:26
● 2017-08-26 19:35:08
○ 2026-03-17 09:22:54
○ 2026-07-31 13:29:56
○A23.21.223.1532016-11-08 → 2016-12-28 · 5 obs
○ 2016-05-06 14:48:44
● 2016-11-08 09:26:22
● 2016-12-28 05:09:42
○ 2017-06-27 16:41:48
○ 2026-07-31 13:29:56
○A50.18.221.1412015-08-17 → 2015-08-17 · 3 obs
● 2015-08-17 01:34:52
○ 2016-01-28 03:25:14
○ 2026-07-31 13:29:56
○A50.19.248.1462017-06-27 → 2017-06-27 · 4 obs
○ 2016-12-28 05:09:42
● 2017-06-27 16:41:48
○ 2017-07-09 04:42:26
○ 2026-07-31 13:29:56
○A54.193.106.1532015-08-17 → 2015-08-17 · 3 obs
● 2015-08-17 01:34:52
○ 2016-01-28 03:25:14
○ 2026-07-31 13:29:56
○A54.243.100.1102016-11-08 → 2016-12-28 · 5 obs
○ 2016-05-06 14:48:44
● 2016-11-08 09:26:22
● 2016-12-28 05:09:42
○ 2017-06-27 16:41:48
○ 2026-07-31 13:29:56
○A54.243.104.832017-06-27 → 2017-08-26 · 5 obs
○ 2016-12-28 05:09:42
● 2017-06-27 16:41:48
● 2017-08-26 19:35:08
○ 2026-03-17 09:22:54
○ 2026-07-31 13:29:56
●A75.2.70.752026-03-17 → 2026-07-31 · 3 obs
○ 2017-08-26 19:35:08
● 2026-03-17 09:22:54
● 2026-07-31 13:29:56
●A99.83.190.1022026-03-17 → 2026-07-31 · 3 obs
○ 2017-08-26 19:35:08
● 2026-03-17 09:22:54
● 2026-07-31 13:29:56

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org-
teachersguild.orgns3-05.azure-dns.org, ns4-05.azure-dns.info, ns1-05.azure-dns.com, ns2-05.azure-dns.net2 records

✅ Authoritative Response

Server:208.84.5.5

NS records: ns3-05.azure-dns.org, ns4-05.azure-dns.info, ns1-05.azure-dns.com, ns2-05.azure-dns.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teachersguild.org (unsigned zone)

⏱️ Timing

Total: 179ms | Queries: -

📄 Records

TypeCountSample Data
A275.2.70.75, 99.83.190.102
NS4ns1-05.azure-dns.com, ns2-05.azure-dns.net...
MX5aspmx.l.google.com (pri: 1), alt1.aspmx.l.google.com (pri: 5)...
TXT2v=spf1 mx ip4:23.21.69.41 a:relay.oiengi, google-site-verification=SKG1N_rKScuFo-e
SOA1ns1-05.azure-dns.com azuredns-hostmaster

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns3-05.azure-dns.org, ns3-05.azure-dns.org)

Analysis

Hierarchy

teachersguild.org is the parent zone for www.teachersguild.org.

IP Addresses

teachersguild.org resolves to the IP addresses 75.2.70.75 and 99.83.190.102

Two other host names, along with florian-schmidl.de, inoxtube.fr and silverback.com, also share IP numbers with teachersguild.org.

Name Servers

The NS records for teachersguild.org point to four name servers: ns1-05.azure-dns.com, ns4-05.azure-dns.info, ns2-05.azure-dns.net and ns3-05.azure-dns.org.

teachersguild.org partially shares its NS delegation with several other domains, including 888jogo97.com, agresso.be, dynamics365productinsights.ai and two others.

ns1-05.azure-dns.com, ns4-05.azure-dns.info, ns2-05.azure-dns.net and ns3-05.azure-dns.org each carry two IP addresses. ns1-05.azure-dns.com has 13.107.236.5 and 2603:1061:0:700::5; ns4-05.azure-dns.info has 208.84.5.5 and 2620:1ec:bda:700::5; ns2-05.azure-dns.net has 150.171.21.5 and 2620:1ec:8ec:700::5; ns3-05.azure-dns.org has 204.14.183.5 and 2a01:111:4000:700::5.

Mail Servers

teachersguild.org is handled by five mail servers: aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and two others.

There is at least a partial MX overlap between teachersguild.org and other domains, including ns500759.ns500698.ns500698.ns500759.ns500758.ns500698.ns500735.ns500735.ns500735.ns500698.ns500698.ns500576.ns500698.ns500686.ns500576.trackreceptor.com, ns500758.ns500759.ns500698.ns500698.ns500759.ns500758.ns500698.ns500735.ns500735.ns500698.ns500698.ns500698.ns500698.ns500576.ns500619.ns500619.trackreceptor.com, ns500698.ns500759.ns500698.ns500698.ns500735.ns500698.ns500735.ns500735.ns500735.ns500735.ns500708.ns500698.ns500576.ns500698.ns500686.ns500652.ns500619.trackreceptor.com and two others.

These mail servers tend to appear in combination with mail servers alt3.aspmx.l.google.com, alt4.aspmx.l.google.com, aspmx2.googlemail.com and 3 others.

Host names that have two IP addresses:

The A records for aspmx.l.google.com return 172.253.115.27 and 2607:f8b0:4004:c2d::1b.

The A records for alt1.aspmx.l.google.com return 108.177.123.27 and 2800:3f0:4003:c0f::1a.

The A records for alt2.aspmx.l.google.com return 74.125.193.26 and 2a00:1450:400b:c01::1a.

The A records for alt3.aspmx.l.google.com return 192.178.223.26 and 2a00:1450:4009:c0f::1a.

The A records for alt4.aspmx.l.google.com return 172.253.157.26 and 2a00:1450:400c:c23::1b.