firstteachershb.org - robtex.com

firstteachershb.org

DNSSEC⚠️ Not signed
A199.102.145.150
PTR93928.olb.prd1.dcb.digitalinsight.com
A199.102.149.150
NSa1.verisigndns.com ⭐ ⚠️ Not in parent delegation
A2600:180a:1001::1🇺🇸 Tiggee2600:180a:1001::/48 Constellix anycast network
PTRns11.constellix.com
A96.45.80.1🇺🇸 Tiggee96.45.80.0/24 route 96.45.80.0/24
PTRns11.constellix.com
NSa2.verisigndns.com ⚠️ Not in parent delegation
A2600:180b:2001::1🇺🇸 Tiggee2600:180b:2001::/48 Constellix anycast network
PTRns21.constellix.com
A46.31.236.1🇺🇸 Tiggee46.31.236.0/24 route 46.31.236.0/24
PTRns21.constellix.com
NSa3.verisigndns.com ⚠️ Not in parent delegation
A2600:180c:3001::1🇺🇸 Tiggee2600:180c:3001::/48 Constellix anycast network
PTRns31.constellix.com
A43.247.170.1🇯🇵 Tiggee43.247.170.0/24 route 43.247.170.0/24
PTRns31.constellix.com
NSedns123.ultradns.biz
A2610:a1:1015::27b🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar
PTRedns123.ultradns.biz
A204.74.67.123🇺🇸 MAINT-ID-12008204.74.67.0/24 Neustar
PTRedns123.ultradns.biz
NSedns123.ultradns.com
A2001:502:f3ff::27b🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar
PTRedns123.ultradns.com
A204.74.66.123🇺🇸 MAINT-ID-12008204.74.66.0/24 Neustar
PTRedns123.ultradns.com
NSedns123.ultradns.net
A2610:a1:1014::27b🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar
PTRedns123.ultradns.net
A204.74.110.123🇺🇸 MAINT-ID-12008204.74.110.0/24 Neustar
PTRedns123.ultradns.net
NSedns123.ultradns.org
A2001:502:4612::27b🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar
PTRedns123.ultradns.org
A204.74.111.123🇺🇸 MAINT-ID-12008204.74.111.0/24 Neustar
PTRedns123.ultradns.org
MXmail.firstteachershb.org ⭐
MXbackup-mx.choiceonecom.net(20)
TXTv=spf1 mx mx:firstteachershb.org ip4:206.107.78.0/24 ip4:208.2.188.0/23 ip4:2...
SOAa1.verisigndns.comservices_management@digitalinsight.com 2005-03-24 #71

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=1778554955

Subdomains

www.firstteachershb.org

Same first word

firstteachershb.org

DNS History

16 records (11 active, 5 former)

20162017201820192020202120222023202420252026NSa1.verisigndns.coma2.verisigndns.coma3.verisigndns.comedns123.ultradns.bizedns123.ultradns.comedns123.ultradns.netedns123.ultradns.orgpdns211.ultradns.bizpdns211.ultradns.compdns211.ultradns.netpdns211.ultradns.orgMXbackup-mx.choiceonecom.netmail.firstteachershb.orgA199.102.145.150199.102.149.150208.35.184.152
●NSa1.verisigndns.com2020-03-19 → 2026-05-12 · 3 obs
○ 2017-03-24 04:53:16
● 2020-03-19 19:02:24
● 2026-05-12 03:32:44
●NSa2.verisigndns.com2020-03-19 → 2026-05-12 · 3 obs
○ 2017-03-24 04:53:16
● 2020-03-19 19:02:24
● 2026-05-12 03:32:44
●NSa3.verisigndns.com2020-03-19 → 2026-05-12 · 3 obs
○ 2017-03-24 04:53:16
● 2020-03-19 19:02:24
● 2026-05-12 03:32:44
●NSedns123.ultradns.biz2020-03-19 → 2026-05-12 · 3 obs
○ 2017-03-24 04:53:16
● 2020-03-19 19:02:24
● 2026-05-12 03:32:44
●NSedns123.ultradns.com2020-03-19 → 2026-05-12 · 3 obs
○ 2017-03-24 04:53:16
● 2020-03-19 19:02:24
● 2026-05-12 03:32:44
●NSedns123.ultradns.net2020-03-19 → 2026-05-12 · 3 obs
○ 2017-03-24 04:53:16
● 2020-03-19 19:02:24
● 2026-05-12 03:32:44
●NSedns123.ultradns.org2020-03-19 → 2026-05-12 · 3 obs
○ 2017-03-24 04:53:16
● 2020-03-19 19:02:24
● 2026-05-12 03:32:44
○NSpdns211.ultradns.biz2015-06-23 → 2017-03-24 · 4 obs
● 2015-06-23 17:02:52
● 2017-03-24 04:53:16
○ 2020-03-19 19:02:24
○ 2026-05-12 03:32:44
○NSpdns211.ultradns.com2015-06-23 → 2017-03-24 · 4 obs
● 2015-06-23 17:02:52
● 2017-03-24 04:53:16
○ 2020-03-19 19:02:24
○ 2026-05-12 03:32:44
○NSpdns211.ultradns.net2015-06-23 → 2017-03-24 · 4 obs
● 2015-06-23 17:02:52
● 2017-03-24 04:53:16
○ 2020-03-19 19:02:24
○ 2026-05-12 03:32:44
○NSpdns211.ultradns.org2015-06-23 → 2017-03-24 · 4 obs
● 2015-06-23 17:02:52
● 2017-03-24 04:53:16
○ 2020-03-19 19:02:24
○ 2026-05-12 03:32:44
●MXbackup-mx.choiceonecom.net2015-06-23 → 2026-05-12 · 2 obs
● 2015-06-23 17:02:52
● 2026-05-12 03:32:44
●MXmail.firstteachershb.org2015-06-23 → 2026-05-12 · 2 obs
● 2015-06-23 17:02:52
● 2026-05-12 03:32:44
●A199.102.145.1502017-03-24 → 2026-05-12 · 3 obs
○ 2016-07-15 18:45:02
● 2017-03-24 04:53:16
● 2026-05-12 03:32:44
●A199.102.149.1502017-03-24 → 2026-05-12 · 3 obs
○ 2016-07-15 18:45:02
● 2017-03-24 04:53:16
● 2026-05-12 03:32:44
○A208.35.184.1522015-06-23 → 2016-07-15 · 4 obs
● 2015-06-23 17:02:52
● 2016-07-15 18:45:02
○ 2017-03-24 04:53:16
○ 2026-05-12 03:32:44

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb2.org.afilias-nst.org, d0.org.afilias-nst.org, b0.org.afilias-nst.org-
firstteachershb.orgedns123.ultradns.biz, edns123.ultradns.com, edns123.ultradns.net, edns123.ultradns.org2 records

✅ Authoritative Response

Server:204.74.111.123

NS records: edns123.ultradns.biz, edns123.ultradns.com, edns123.ultradns.net, edns123.ultradns.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for firstteachershb.org (unsigned zone)

⏱️ Timing

Total: 2711ms | Queries: -

📄 Records

TypeCountSample Data
A2199.102.149.150, 199.102.145.150
NS7a1.verisigndns.com, a2.verisigndns.com...
MX2mail.firstteachershb.org (pri: 10), backup-mx.choiceonecom.net (pri: 20)
TXT1v=spf1 mx mx:firstteachershb.org ip4:206
SOA1a1.verisigndns.com services_management.d

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (edns123.ultradns.org, edns123.ultradns.org)

Analysis

Hierarchy

firstteachershb.org is parent of www.firstteachershb.org.

IP Addresses

firstteachershb.org points to two IP numbers: 199.102.145.150 and 199.102.149.150.

Other host names such as 93928.olb.prd1.dcb.digitalinsight.com and 93928.olb.prd1.dca.digitalinsight.com share IP numbers with firstteachershb.org.

Name Servers

firstteachershb.org delegates to seven name servers: edns123.ultradns.biz, edns123.ultradns.com, a1.verisigndns.com, a2.verisigndns.com, a3.verisigndns.com, edns123.ultradns.net and edns123.ultradns.org.

firstteachershb.org at least partially shares its name servers with other domains, for instance 58.13.72.in-addr.arpa, 88.16.199.in-addr.arpa, mbtconline.com, sdmfcu.org and stg1.dcb.digitalinsight.com.

these name servers are commonly used with the name servers ns1.ncrsaasdns.com, ns2.ncrsaasdns.com, ns3.ncrsaasdns.com, ns4.ncrsaasdns.com, ns5.ncrsaasdns.com and ns6.ncrsaasdns.com.

Host names with two IP numbers

Host name edns123.ultradns.biz points to 2610:a1:1015::27b and 204.74.67.123

Host name edns123.ultradns.com points to 2001:502:f3ff::27b and 204.74.66.123

Host name a1.verisigndns.com points to 2600:180a:1001::1 and 96.45.80.1

Host name a2.verisigndns.com points to 2600:180b:2001::1 and 46.31.236.1

Host name a3.verisigndns.com points to 2600:180c:3001::1 and 43.247.170.1

Host name edns123.ultradns.net points to 2610:a1:1014::27b and 204.74.110.123

Host name edns123.ultradns.org points to 2001:502:4612::27b and 204.74.111.123

Mail Servers

Two mail servers backup-mx.choiceonecom.net and mail.firstteachershb.org handle firstteachershb.org.