decisionbasedlearning.com - robtex.com

decisionbasedlearning.com

DNSSEC⚠️ Not signed
A35.82.1.11🇺🇸 Amazon35.80.0.0/12 EC2 PDX prefix
PTRec2-35-82-1-11.us-west-2.compute.amazonaws.com
A44.252.248.25🇺🇸 Amazon44.224.0.0/11 EC2 PDX prefix
A54.185.244.77🇺🇸 Amazon54.184.0.0/15 EC2 PDX prefix
A184.32.67.66🇺🇸 Amazon184.32.0.0/14 EC2 Prefix
NSns-384.awsdns-48.com ⭐
A2600:9000:5301:8000::1🇺🇸 Amazon2600:9000:5301::/48 - CloudFront
PTRns-384.awsdns-48.com
A205.251.193.128🇺🇸 Amazon205.251.193.0/24 prefix
PTRns-384.awsdns-48.com
NSns-1395.awsdns-46.org
A2600:9000:5305:7300::1🇺🇸 Amazon2600:9000:5305::/48 - CloudFront
PTRns-1395.awsdns-46.org
A205.251.197.115🇺🇸 Amazon205.251.197.0/24 prefix
PTRns-1395.awsdns-46.org
NSns-1910.awsdns-46.co.uk
A2600:9000:5307:7600::1🇺🇸 Amazon2600:9000:5307::/48 - CloudFront
PTRns-1910.awsdns-46.co.uk
A205.251.199.118🇺🇸 Amazon205.251.199.0/24 prefix
PTRns-1910.awsdns-46.co.uk
NSns-684.awsdns-21.net
A2600:9000:5302:ac00::1🇺🇸 Amazon2600:9000:5302::/48 - CloudFront
PTRns-684.awsdns-21.net
A205.251.194.172🇺🇸 Amazon205.251.194.0/24 prefix
PTRns-684.awsdns-21.net
MXmail.decisionbasedlearning.com ⭐
A162.241.218.142🇺🇸 ORACLE-OCI-31898162.241.216.0/22 Google
PTRbox5568.bluehost.com
SOAns-384.awsdns-48.comawsdns-hostmaster@amazon.com serial=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=1771291435

DNS History

14 records (9 active, 5 former)

2017201820192020202120222023202420252026NSns-1395.awsdns-46.orgns-1910.awsdns-46.co.ukns-384.awsdns-48.comns-684.awsdns-21.netns27.domaincontrol.comns28.domaincontrol.comMXmail.decisionbasedlearning.commailstore1.secureserver.netsmtp.secureserver.netA184.32.67.6635.82.1.1144.252.248.2554.185.244.7750.63.202.33
●NSns-1395.awsdns-46.org2026-03-08 → 2026-03-08 · 2 obs
○ 2018-01-01 11:07:56
● 2026-03-08 01:06:50
●NSns-1910.awsdns-46.co.uk2026-03-08 → 2026-03-08 · 2 obs
○ 2018-01-01 11:07:56
● 2026-03-08 01:06:50
●NSns-384.awsdns-48.com2026-03-08 → 2026-03-08 · 2 obs
○ 2018-01-01 11:07:56
● 2026-03-08 01:06:50
●NSns-684.awsdns-21.net2026-03-08 → 2026-03-08 · 2 obs
○ 2018-01-01 11:07:56
● 2026-03-08 01:06:50
○NSns27.domaincontrol.com2016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 21:35:12
○ 2018-01-01 11:07:56
○ 2026-03-08 01:06:50
○NSns28.domaincontrol.com2016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 21:35:12
○ 2018-01-01 11:07:56
○ 2026-03-08 01:06:50
●MXmail.decisionbasedlearning.com2026-03-08 → 2026-03-08 · 2 obs
○ 2018-01-01 11:07:56
● 2026-03-08 01:06:50
○MXmailstore1.secureserver.net2016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 21:35:12
○ 2018-01-01 11:07:56
○ 2026-03-08 01:06:50
○MXsmtp.secureserver.net2016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 21:35:12
○ 2018-01-01 11:07:56
○ 2026-03-08 01:06:50
●A184.32.67.662026-03-08 → 2026-03-08 · 2 obs
○ 2018-01-01 11:07:56
● 2026-03-08 01:06:50
●A35.82.1.112026-03-08 → 2026-03-08 · 2 obs
○ 2018-01-01 11:07:56
● 2026-03-08 01:06:50
●A44.252.248.252026-03-08 → 2026-03-08 · 2 obs
○ 2018-01-01 11:07:56
● 2026-03-08 01:06:50
○A50.63.202.332016-12-18 → 2016-12-18 · 3 obs
● 2016-12-18 21:35:12
○ 2018-01-01 11:07:56
○ 2026-03-08 01:06:50
●A54.185.244.772026-03-08 → 2026-03-08 · 2 obs
○ 2018-01-01 11:07:56
● 2026-03-08 01:06:50

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
coma.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...-
decisionbasedlearning.comns-684.awsdns-21.net, ns-384.awsdns-48.com, ns-1910.awsdns-46.co.uk, ns-1395.awsdns-46.org1 record

✅ Authoritative Response

Server: 205.251.194.172

NS records: ns-684.awsdns-21.net, ns-384.awsdns-48.com, ns-1910.awsdns-46.co.uk, ns-1395.awsdns-46.org

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for decisionbasedlearning.com (unsigned zone)

⏱️ Timing

Total: 284ms | Queries: -

📄 Records

TypeCountSample Data
A444.252.248.25, 35.82.1.11...
NS4ns-1395.awsdns-46.org, ns-1910.awsdns-46.co.uk...
MX1mail.decisionbasedlearning.com (pri: 0)
SOA1ns-384.awsdns-48.com awsdns-hostmaster.a

📌 Glue Records Collected

Total: 1

Out-of-bailiwick: 1 (ns-384.awsdns-48.com)

Analysis

IP Addresses

decisionbasedlearning.com points to four IP numbers: 35.82.1.11, 44.252.248.25, 54.185.244.77 and 184.32.67.66.

Name Servers

decisionbasedlearning.com is delegated to four name servers: ns-384.awsdns-48.com, ns-684.awsdns-21.net, ns-1395.awsdns-46.org and ns-1910.awsdns-46.co.uk.

decisionbasedlearning.com at least partially shares name servers with other domains, including tapmarkers.com, d1qz1pevk9bjqc.cloudfront.net, fewo-bodensee.org, mocloassembly.com and d349b1pti8w5dy.cloudfront.net.

these name servers are commonly used with ns-805.awsdns-36.net, ns-134.awsdns-16.com, ns-1524.awsdns-62.org, ns-233.awsdns-29.com and ns-1069.awsdns-05.org.

Hosts with two IP numbers:

Host ns-384.awsdns-48.com points to 2600:9000:5301:8000::1 and 205.251.193.128

Host ns-684.awsdns-21.net points to 2600:9000:5302:ac00::1 and 205.251.194.172

Host ns-1395.awsdns-46.org points to 2600:9000:5305:7300::1 and 205.251.197.115

Host ns-1910.awsdns-46.co.uk points to 2600:9000:5307:7600::1 and 205.251.199.118

Mail Servers

decisionbasedlearning.com is handled by a single mail server, mail.decisionbasedlearning.com.

mail.decisionbasedlearning.com points to a single IP: 162.241.218.142.