`studentesimposium.org`

DNSSEC	⚠️ Not signed
A	41.185.91.128^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
		PTR	`rip04-win02.hostserv.co.za`
NS	`petra.ns.1-grid.co.uk` ⭐
		A	41.61.100.10^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`petra.ns.1-grid.com`
			PTR	`petra.ns.1-grid.co.uk`
NS	`petra.ns.1-grid.co.za`
		A	196.43.195.10^{🇿🇦 ZA-1-Grid196.43.195.0/24 1-Grid Route Object}
			PTR	`petra.ns.1-grid.net`
			PTR	`petra.ns.1-grid.co.za`
NS	`petra.ns.1-grid.com`
		A	41.61.100.10^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`petra.ns.1-grid.com`
			PTR	`petra.ns.1-grid.co.uk`
NS	`petra.ns.1-grid.net`
		A	196.43.195.10^{🇿🇦 ZA-1-Grid196.43.195.0/24 1-Grid Route Object}
			PTR	`petra.ns.1-grid.net`
			PTR	`petra.ns.1-grid.co.za`
MX	`1-grid-mx01.co.za` ⭐
		A	41.185.250.20^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter02.hostserv.co.za`
		A	41.185.250.30^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter03.hostserv.co.za`
		A	41.185.250.50^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter05.hostserv.co.za`
		A	41.185.250.60^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter06.hostserv.co.za`
		A	41.185.250.70^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter07.hostserv.co.za`
		A	41.185.250.80^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter08.hostserv.co.za`
		A	41.185.250.90^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter09.hostserv.co.za`
		A	41.185.250.100^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter10.hostserv.co.za`
MX	`1-grid-mx02.com` ⭐
		A	41.185.249.20^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter02.hostserv.co.za`
		A	41.185.249.30^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter03.hostserv.co.za`
		A	41.185.249.50^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter05.hostserv.co.za`
		A	41.185.249.60^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter06.hostserv.co.za`
		A	41.185.249.70^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter07.hostserv.co.za`
		A	41.185.249.80^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter08.hostserv.co.za`
		A	41.185.249.90^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter09.hostserv.co.za`
		A	41.185.249.100^{🇿🇦 ZA-1-Grid41.185.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter10.hostserv.co.za`
MX	`1-grid-mx03.co.za` ⭐
		A	41.61.250.20^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter02.hostserv.co.za`
		A	41.61.250.30^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter03.hostserv.co.za`
		A	41.61.250.50^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter05.hostserv.co.za`
		A	41.61.250.60^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter06.hostserv.co.za`
		A	41.61.250.80^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter08.hostserv.co.za`
		A	41.61.250.90^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter09.hostserv.co.za`
		A	41.61.250.100^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter10.hostserv.co.za`
MX	`1-grid-mx04.com` ⭐
		A	41.61.249.20^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter02.hostserv.co.za`
		A	41.61.249.30^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter03.hostserv.co.za`
		A	41.61.249.50^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter05.hostserv.co.za`
		A	41.61.249.60^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter06.hostserv.co.za`
		A	41.61.249.70^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter07.hostserv.co.za`
		A	41.61.249.80^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter08.hostserv.co.za`
		A	41.61.249.90^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter09.hostserv.co.za`
		A	41.61.249.100^{🇿🇦 ZA-1-Grid41.61.0.0/16 1-Grid Route Object}
			PTR	`spamtitan-filter10.hostserv.co.za`
TXT	`v=spf1 ip4:41.185.110.24 a:mail.studentesimposium.org a:smtp.studentesimposiu...`
TXT	`google-site-verification=RuUNmzaLpQ_Lmqo-4S9Ih79Wt8OTQ9wyso_Zu0qQt9I`
SOA	`petra.ns.1-grid.co.uk`info@riptidecc.com 2024-02-06 #1

`org`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a0.org.afilias-nst.info` ⭐ ⚠️ Not in parent delegation
	NS	`a2.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`b0.org.afilias-nst.org`
	NS	`b2.org.afilias-nst.org`
	NS	`c0.org.afilias-nst.info` ⚠️ Not in parent delegation
	NS	`d0.org.afilias-nst.org`
	SOA	`a0.org.afilias-nst.info`hostmaster@donuts.email serial=1778518070

Subdomains

fw1a.studentesimposium.org

Same first word

studentesimposium.org

DNS History

14 records (9 active, 5 former)

○NSns1.wadns.net2015-05-24 → 2017-04-05 · 4 obs

● 2015-05-24 02:21:50
● 2017-04-05 07:59:12
○ 2026-02-24 18:48:08
○ 2026-05-11 17:10:28

○NSns2.wadns.net2015-05-24 → 2017-04-05 · 4 obs

● 2015-05-24 02:21:50
● 2017-04-05 07:59:12
○ 2026-02-24 18:48:08
○ 2026-05-11 17:10:28

●NSpetra.ns.1-grid.co.uk2026-02-24 → 2026-05-11 · 3 obs

○ 2017-04-05 07:59:12
● 2026-02-24 18:48:08
● 2026-05-11 17:10:28

●NSpetra.ns.1-grid.co.za2026-02-24 → 2026-05-11 · 3 obs

○ 2017-04-05 07:59:12
● 2026-02-24 18:48:08
● 2026-05-11 17:10:28

●NSpetra.ns.1-grid.com2026-02-24 → 2026-05-11 · 3 obs

○ 2017-04-05 07:59:12
● 2026-02-24 18:48:08
● 2026-05-11 17:10:28

●NSpetra.ns.1-grid.net2026-02-24 → 2026-05-11 · 3 obs

○ 2017-04-05 07:59:12
● 2026-02-24 18:48:08
● 2026-05-11 17:10:28

●MX1-grid-mx01.co.za2026-02-24 → 2026-05-11 · 3 obs

○ 2017-04-05 07:59:12
● 2026-02-24 18:48:08
● 2026-05-11 17:10:28

●MX1-grid-mx02.com2026-02-24 → 2026-05-11 · 3 obs

○ 2017-04-05 07:59:12
● 2026-02-24 18:48:08
● 2026-05-11 17:10:28

●MX1-grid-mx03.co.za2026-02-24 → 2026-05-11 · 3 obs

○ 2017-04-05 07:59:12
● 2026-02-24 18:48:08
● 2026-05-11 17:10:28

●MX1-grid-mx04.com2026-02-24 → 2026-05-11 · 3 obs

○ 2017-04-05 07:59:12
● 2026-02-24 18:48:08
● 2026-05-11 17:10:28

○MXfw1a.studentesimposium.org2015-05-24 → 2017-04-05 · 4 obs

● 2015-05-24 02:21:50
● 2017-04-05 07:59:12
○ 2026-02-24 18:48:08
○ 2026-05-11 17:10:28

○MXfw2a.studentesimposium.org2015-05-24 → 2017-04-05 · 4 obs

● 2015-05-24 02:21:50
● 2017-04-05 07:59:12
○ 2026-02-24 18:48:08
○ 2026-05-11 17:10:28

○A41.185.12.602015-05-24 → 2017-04-05 · 4 obs

● 2015-05-24 02:21:50
● 2017-04-05 07:59:12
○ 2026-02-24 18:48:08
○ 2026-05-11 17:10:28

●A41.185.91.1282026-02-24 → 2026-05-11 · 3 obs

○ 2017-04-05 07:59:12
● 2026-02-24 18:48:08
● 2026-05-11 17:10:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org	-
studentesimposium.org	petra.ns.1-grid.net, petra.ns.1-grid.com, petra.ns.1-grid.co.uk, petra.ns.1-grid.co.za	-

✅ Authoritative Response

Server:41.61.100.10

NS records: petra.ns.1-grid.net, petra.ns.1-grid.com, petra.ns.1-grid.co.uk, petra.ns.1-grid.co.za

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studentesimposium.org (unsigned zone)

⏱️ Timing

Total: 1079ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`41.185.91.128`
NS	4	`petra.ns.1-grid.com, petra.ns.1-grid.net...`
MX	4	`1-grid-mx04.com (pri: 5), 1-grid-mx02.com (pri: 5)...`
TXT	2	`v=spf1 ip4:41.185.110.24 a:mail.studente, google-site-verification=RuUNmzaLpQ_Lmqo`
SOA	1	`petra.ns.1-grid.co.uk info.riptidecc.com`

Analysis

Hierarchy

studentesimposium.org is the parent of fw1a.studentesimposium.org.

IP Addresses

studentesimposium.org resolves to one IP number: 41.185.91.128.

other host names including mx.topflyte.co.za, hostmaster.ventex.co.za, bmssk.co.za, ventex.co.za and *.topflyte.co.za share IP numbers with studentesimposium.org.

Name Servers

studentesimposium.org is delegated to four name servers: petra.ns.1-grid.com, petra.ns.1-grid.net, petra.ns.1-grid.co.uk and petra.ns.1-grid.co.za.

studentesimposium.org at least partially shares name servers with other domains, for instance isa-audiology.org, unibit.co.za, sitcsa.com, 4most.co.za and neweracoatings.co.za.

Host names with one IP number:

Host name petra.ns.1-grid.com points to: 41.61.100.10.

Host name petra.ns.1-grid.net points to: 196.43.195.10.

Host name petra.ns.1-grid.co.uk points to: 41.61.100.10.

Host name petra.ns.1-grid.co.za points to: 196.43.195.10.

Host names pointing to 41.61.100.10: petra.ns.1-grid.com and petra.ns.1-grid.co.uk.

Host names pointing to 196.43.195.10: petra.ns.1-grid.net and petra.ns.1-grid.co.za.

Mail Servers

Four mail servers handle studentesimposium.org: 1-grid-mx02.com, 1-grid-mx04.com, 1-grid-mx01.co.za and 1-grid-mx03.co.za.

studentesimposium.org shares some mail servers with other domains, at least partially, for instance tugoflife.com, kerprop.co.za, glowdom.com, snoekies.co.za and farms4africa.com.

Eight IP numbers:

1-grid-mx02.com points to: 41.185.249.20, 41.185.249.30, 41.185.249.50, 41.185.249.60, 41.185.249.70, 41.185.249.80, 41.185.249.90 and 41.185.249.100.

1-grid-mx04.com points to: 41.61.249.20, 41.61.249.30, 41.61.249.50, 41.61.249.60, 41.61.249.70, 41.61.249.80, 41.61.249.90 and 41.61.249.100.

1-grid-mx01.co.za points to: 41.185.250.20, 41.185.250.30, 41.185.250.50, 41.185.250.60, 41.185.250.70, 41.185.250.80, 41.185.250.90 and 41.185.250.100.

Seven IP numbers:

1-grid-mx03.co.za points to: 41.61.250.20, 41.61.250.30, 41.61.250.50, 41.61.250.60, 41.61.250.80, 41.61.250.90 and 41.61.250.100.

studentesimposium.org - robtex.com