cert.edu.au - robtex.com

cert.edu.au

DNSSEC⚠️ Not signed
A141.193.213.10🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US
A141.193.213.11🇺🇸 CLOUDFLARESPECTRUM141.193.213.0/24 WPEngine, Inc. 504 Lavaca Street, 1000, Austin, TX 78701, US
NSns1.domainname.edu.au ⭐
A13.248.158.180🇺🇸 Amazon13.248.144.0/20
PTRa79764cc55c0ac9c0.awsglobalaccelerator.com
NSns2.domainname.edu.au
A75.2.118.134🇺🇸 Amazon75.2.112.0/20
PTRabc65dd9a44b5332f.awsglobalaccelerator.com
NSns3.domainname.edu.au ⚠️ Not in zone NS records
A76.223.26.245🇺🇸 Amazon76.223.16.0/20
PTRa79764cc55c0ac9c0.awsglobalaccelerator.com
MXfilter1.cert-2.mailguard.com.au ⭐
A3.24.56.135🇦🇺 Amazon3.24.0.0/14 EC2 SYD prefix
PTRmg-aaus-pogs.mailguard.com.au
A13.70.186.218🇦🇺 Microsoft13.64.0.0/11 MICROSOFT
PTRmg-zaum-ding.mailguard.com.au
A13.236.218.216🇦🇺 Amazon13.236.0.0/14
PTRmg-aaus-zote.mailguard.com.au
A13.238.162.196🇦🇺 Amazon13.236.0.0/14
PTRmg-aaus-agro.mailguard.com.au
A13.238.252.82🇦🇺 Amazon13.236.0.0/14
PTRmg-aaus-widget.mailguard.com.au
A20.70.88.141🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaum-bing.mailguard.com.au
A20.92.133.252🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaus-omicron.mailguard.com.au
A20.92.134.58🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaus-pi.mailguard.com.au
A20.92.218.92🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaus-chi.mailguard.com.au
A20.190.127.76🇦🇺 Microsoft20.184.0.0/13 MICROSOFT
PTRmg-zaum-zarks.mailguard.com.au
A52.63.166.203🇦🇺 Amazon52.62.0.0/15 EC2 SYD prefix
PTRmg-aaus-tazos.mailguard.com.au
A52.147.56.124🇦🇺 Microsoft52.146.0.0/15 MICROSOFT
PTRmg-zaum-snatto.mailguard.com.au
A52.147.60.132🇦🇺 Microsoft52.146.0.0/15 MICROSOFT
PTRmg-zaum-milo.mailguard.com.au
A54.66.10.162🇦🇺 Amazon54.66.0.0/17 EC2 SYD prefix
PTRmg-aaus-brum.mailguard.com.au
A54.79.63.66🇦🇺 Amazon54.79.0.0/17 EC2 SYD prefix
PTRmg-aaus-gobbledok.mailguard.com.au
MXfilter2.cert-2.mailguard.com.au(20)
A3.24.56.135🇦🇺 Amazon3.24.0.0/14 EC2 SYD prefix
PTRmg-aaus-pogs.mailguard.com.au
A13.70.186.218🇦🇺 Microsoft13.64.0.0/11 MICROSOFT
PTRmg-zaum-ding.mailguard.com.au
A13.236.218.216🇦🇺 Amazon13.236.0.0/14
PTRmg-aaus-zote.mailguard.com.au
A13.238.162.196🇦🇺 Amazon13.236.0.0/14
PTRmg-aaus-agro.mailguard.com.au
A13.238.252.82🇦🇺 Amazon13.236.0.0/14
PTRmg-aaus-widget.mailguard.com.au
A20.70.88.141🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaum-bing.mailguard.com.au
A20.92.133.252🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaus-omicron.mailguard.com.au
A20.92.134.58🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaus-pi.mailguard.com.au
A20.92.218.92🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaus-chi.mailguard.com.au
A20.190.127.76🇦🇺 Microsoft20.184.0.0/13 MICROSOFT
PTRmg-zaum-zarks.mailguard.com.au
A52.63.166.203🇦🇺 Amazon52.62.0.0/15 EC2 SYD prefix
PTRmg-aaus-tazos.mailguard.com.au
A52.147.56.124🇦🇺 Microsoft52.146.0.0/15 MICROSOFT
PTRmg-zaum-snatto.mailguard.com.au
A52.147.60.132🇦🇺 Microsoft52.146.0.0/15 MICROSOFT
PTRmg-zaum-milo.mailguard.com.au
A54.66.10.162🇦🇺 Amazon54.66.0.0/17 EC2 SYD prefix
PTRmg-aaus-brum.mailguard.com.au
A54.79.63.66🇦🇺 Amazon54.79.0.0/17 EC2 SYD prefix
PTRmg-aaus-gobbledok.mailguard.com.au
MXfilter3.cert-2.mailguard.com.au(30)
A3.24.56.135🇦🇺 Amazon3.24.0.0/14 EC2 SYD prefix
PTRmg-aaus-pogs.mailguard.com.au
A13.70.186.218🇦🇺 Microsoft13.64.0.0/11 MICROSOFT
PTRmg-zaum-ding.mailguard.com.au
A13.236.218.216🇦🇺 Amazon13.236.0.0/14
PTRmg-aaus-zote.mailguard.com.au
A13.238.162.196🇦🇺 Amazon13.236.0.0/14
PTRmg-aaus-agro.mailguard.com.au
A13.238.252.82🇦🇺 Amazon13.236.0.0/14
PTRmg-aaus-widget.mailguard.com.au
A20.70.88.141🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaum-bing.mailguard.com.au
A20.92.133.252🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaus-omicron.mailguard.com.au
A20.92.134.58🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaus-pi.mailguard.com.au
A20.92.218.92🇦🇺 Microsoft20.64.0.0/10
PTRmg-zaus-chi.mailguard.com.au
A20.190.127.76🇦🇺 Microsoft20.184.0.0/13 MICROSOFT
PTRmg-zaum-zarks.mailguard.com.au
A52.63.166.203🇦🇺 Amazon52.62.0.0/15 EC2 SYD prefix
PTRmg-aaus-tazos.mailguard.com.au
A52.147.56.124🇦🇺 Microsoft52.146.0.0/15 MICROSOFT
PTRmg-zaum-snatto.mailguard.com.au
A52.147.60.132🇦🇺 Microsoft52.146.0.0/15 MICROSOFT
PTRmg-zaum-milo.mailguard.com.au
A54.66.10.162🇦🇺 Amazon54.66.0.0/17 EC2 SYD prefix
PTRmg-aaus-brum.mailguard.com.au
A54.79.63.66🇦🇺 Amazon54.79.0.0/17 EC2 SYD prefix
PTRmg-aaus-gobbledok.mailguard.com.au
TXTv=spf1 include:spf.protection.outlook.com include:customer.mailguard.com.au +...
TXTMS=ms34233869
TXTvkm4lv10td43k16li43di34o39
TXTsSzw5VNOQONvnEWL42qQskgbjujxTWsalOehWNOP4lsy4/6dOkQoKxKk17mH0IXLqYrxMNJ3VGV0x...
SOAns1.domainname.edu.audmain@netregistry.net 2025-10-23 #1

edu.au

DNSSEC⚠️ Not signed
NSq.au ⭐ ⚠️ Not in parent delegation
NSa.au ⚠️ Not in parent delegation
NSr.au ⚠️ Not in parent delegation
NSs.au ⚠️ Not in parent delegation
NSt.au ⚠️ Not in parent delegation
SOAq.auhostmaster@donuts.email serial=1777065526
WOT: SAFE (97/100)

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DNS History

14 records (8 active, 6 former)

20192020202120222023202420252026NSns1.domainname.edu.auns2.domainname.edu.auns3.domainname.edu.aucash.ns.cloudflare.comelaine.ns.cloudflare.comMXfilter1.cert-2.mailguard.com.aufilter2.cert-2.mailguard.com.aufilter3.cert-2.mailguard.com.auA141.193.213.10141.193.213.11104.27.132.43104.27.133.432400:cb00:2048:1::681b:842b2400:cb00:2048:1::681b:852b
○NScash.ns.cloudflare.com2018-05-14 → 2018-05-14 · 3 obs
● 2018-05-14 00:26:56
○ 2026-04-19 16:42:22
○ 2026-04-24 21:32:30
○NSelaine.ns.cloudflare.com2018-05-14 → 2018-05-14 · 3 obs
● 2018-05-14 00:26:56
○ 2026-04-19 16:42:22
○ 2026-04-24 21:32:30
●NSns1.domainname.edu.au2026-04-19 → 2026-04-24 · 3 obs
○ 2018-05-14 00:26:56
● 2026-04-19 16:42:22
● 2026-04-24 21:32:30
●NSns2.domainname.edu.au2026-04-19 → 2026-04-24 · 3 obs
○ 2018-05-14 00:26:56
● 2026-04-19 16:42:22
● 2026-04-24 21:32:30
●NSns3.domainname.edu.au2026-04-19 → 2026-04-24 · 3 obs
○ 2018-05-14 00:26:56
● 2026-04-19 16:42:22
● 2026-04-24 21:32:30
●MXfilter1.cert-2.mailguard.com.au2018-05-14 → 2026-04-24 · 2 obs
● 2018-05-14 00:26:56
● 2026-04-24 21:32:30
●MXfilter2.cert-2.mailguard.com.au2018-05-14 → 2026-04-24 · 2 obs
● 2018-05-14 00:26:56
● 2026-04-24 21:32:30
●MXfilter3.cert-2.mailguard.com.au2018-05-14 → 2026-04-24 · 2 obs
● 2018-05-14 00:26:56
● 2026-04-24 21:32:30
○A104.27.132.432018-05-14 → 2018-05-14 · 3 obs
● 2018-05-14 00:26:56
○ 2026-04-19 16:42:22
○ 2026-04-24 21:32:30
○A104.27.133.432018-05-14 → 2018-05-14 · 3 obs
● 2018-05-14 00:26:56
○ 2026-04-19 16:42:22
○ 2026-04-24 21:32:30
●A141.193.213.102026-04-19 → 2026-04-24 · 3 obs
○ 2018-05-14 00:26:56
● 2026-04-19 16:42:22
● 2026-04-24 21:32:30
●A141.193.213.112026-04-19 → 2026-04-24 · 3 obs
○ 2018-05-14 00:26:56
● 2026-04-19 16:42:22
● 2026-04-24 21:32:30
○A2400:cb00:2048:1::681b:842b2018-05-14 → 2018-05-14 · 3 obs
● 2018-05-14 00:26:56
○ 2026-04-19 16:42:22
○ 2026-04-24 21:32:30
○A2400:cb00:2048:1::681b:852b2018-05-14 → 2018-05-14 · 3 obs
● 2018-05-14 00:26:56
○ 2026-04-19 16:42:22
○ 2026-04-24 21:32:30

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
aut.au, q.au, a.au, s.au...-
cert.edu.auns2.domainname.edu.au, ns1.domainname.edu.au, ns3.domainname.edu.au3 records

✅ Authoritative Response

Server:75.2.118.134

NS records: ns2.domainname.edu.au, ns1.domainname.edu.au, ns3.domainname.edu.au

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cert.edu.au (unsigned zone)

⏱️ Timing

Total: 84ms | Queries: -

📄 Records

TypeCountSample Data
A2141.193.213.11, 141.193.213.10
NS2ns1.domainname.edu.au, ns2.domainname.edu.au
MX3filter2.cert-2.mailguard.com.au (pri: 20, filter1.cert-2.mailguard.com.au (pri: 10...
TXT4v=spf1 include:spf.protection.outlook.co, MS=ms34233869...
SOA1ns1.domainname.edu.au dmain.netregistry.

📌 Glue Records Collected

Total: 3

Out-of-bailiwick: 3 (ns1.domainname.edu.au, ns2.domainname.edu.au, ns3.domainname.edu.au)

Analysis

IP Addresses

cert.edu.au points to two IP numbers: 141.193.213.10 and 141.193.213.11.

Other host names, for instance itsmypension.org.uk, 4seasonsresort.com, www.donatelifemidwest.org, tenajsaloninstitute.edu and calvalley.com share IP numbers with cert.edu.au.

Name Servers

The domain cert.edu.au is delegated to three name servers: ns1.domainname.edu.au, ns2.domainname.edu.au and ns3.domainname.edu.au.

cert.edu.au shares name servers with other domains at least partially, for instance caullt.edu.au, actit.edu.au, periwinkle.nsw.edu.au, mit.edu.au and acda.edu.au.

these name servers are commonly used with ns1.netregistry.net, ns2.netregistry.net, ns3.netregistry.net, ns4.domainname.edu.au, ns1.yourdnshost.net, ns2.yourdnshost.net and ns3.yourdnshost.net.

Host names with a single IP number:

ns1.domainname.edu.au points to 13.248.158.180.

ns2.domainname.edu.au points to 75.2.118.134.

ns3.domainname.edu.au points to 76.223.26.245.

Mail Servers

cert.edu.au is handled by three mail servers: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames with fifteen IPs:

filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au each point to: 3.24.56.135, 13.70.186.218, 13.236.218.216, 13.238.162.196, 13.238.252.82, 20.70.88.141, 20.92.133.252, 20.92.134.58, 20.92.218.92, 20.190.127.76, 52.63.166.203, 52.147.56.124, 52.147.60.132, 54.66.10.162 and 54.79.63.66.

Hostnames pointing to 3.24.56.135: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 13.70.186.218: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 13.236.218.216: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 13.238.162.196: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 13.238.252.82: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 20.70.88.141: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 20.92.133.252: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 20.92.134.58: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 20.92.218.92: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 20.190.127.76: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 52.63.166.203: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 52.147.56.124: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 52.147.60.132: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 54.66.10.162: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.

Hostnames pointing to 54.79.63.66: filter1.cert-2.mailguard.com.au, filter2.cert-2.mailguard.com.au and filter3.cert-2.mailguard.com.au.