`nullmx.master-school.com`

DNSSEC	⚠️ Not signed
A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
		PTR	`a904c694c05102f30.awsglobalaccelerator.com`
A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
NS	`ns1.afternic.com` ⭐ ⚠️ Not in parent delegation
		A	2603:5:2126::45^{🇺🇸 GODADDY-DNS2603:5:2120::/44}
			PTR	`ns1.afternic.com`
		A	97.74.98.69^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns1.afternic.com`
NS	`ns2.afternic.com` ⚠️ Not in parent delegation
		A	2603:5:2226::45^{🇺🇸 GODADDY-DNS2603:5:2220::/44}
			PTR	`ns2.afternic.com`
		A	173.201.66.69^{🇺🇸 GODADDY-DNS173.201.66.0/23}
			PTR	`ns2.afternic.com`
TXT	`v=spf1 -all`
SOA	`ns1.afternic.com`dns@jomax.net serial=1

`master-school.com`

	DNSSEC	⚠️ Not signed
	A	13.248.169.48^{🇺🇸 Amazon13.248.160.0/20}
	A	76.223.54.146^{🇺🇸 Amazon76.223.48.0/20}
	NS	`ns2.afternic.com` ⭐
	NS	`ns1.afternic.com`
	NS	`verification-gjjm2jeym5xxdn3znfqwjz.ns101.verify.hn` ⚠️ Not in zone NS records
	TXT	`v=spf1 -all`
	SOA	`ns2.afternic.com`dns@jomax.net serial=1

Previously MX for

master-school.com

Same first word

nullmx.net

nullmx.org

nullmx.com

Similar names

mlnxul.com

DNS History

12 records (4 active, 8 former)

●NSns1.afternic.com2026-03-08 → 2026-03-23 · 3 obs

○ 2017-01-14 09:50:58
● 2026-03-08 11:35:58
● 2026-03-23 11:25:24

○NSns1.sedoparking.com2016-08-18 → 2016-08-18 · 3 obs

● 2016-08-18 05:46:12
○ 2016-09-30 18:50:06
○ 2026-03-23 11:25:24

○NSns1.uniregistrymarket.link2016-09-30 → 2017-01-14 · 5 obs

○ 2016-08-18 05:46:12
● 2016-09-30 18:50:06
● 2017-01-14 09:50:58
○ 2026-03-08 11:35:58
○ 2026-03-23 11:25:24

●NSns2.afternic.com2026-03-08 → 2026-03-23 · 3 obs

○ 2017-01-14 09:50:58
● 2026-03-08 11:35:58
● 2026-03-23 11:25:24

○NSns2.sedoparking.com2016-08-18 → 2016-08-18 · 3 obs

● 2016-08-18 05:46:12
○ 2016-09-30 18:50:06
○ 2026-03-23 11:25:24

○NSns2.uniregistrymarket.link2016-09-30 → 2017-01-14 · 5 obs

○ 2016-08-18 05:46:12
● 2016-09-30 18:50:06
● 2017-01-14 09:50:58
○ 2026-03-08 11:35:58
○ 2026-03-23 11:25:24

○MXmail.nickstel.com2016-08-18 → 2016-08-18 · 3 obs

● 2016-08-18 05:46:12
○ 2016-09-30 18:50:06
○ 2026-03-23 11:25:24

●A13.248.169.482026-03-08 → 2026-03-23 · 3 obs

○ 2017-01-14 09:50:58
● 2026-03-08 11:35:58
● 2026-03-23 11:25:24

○A209.181.247.1052008-03-16 → 2008-03-16 · 3 obs

● 2008-03-16 09:17:56
○ 2015-10-10 02:22:24
○ 2026-03-23 11:25:24

○A69.172.201.1532016-09-30 → 2017-01-14 · 5 obs

○ 2016-08-18 05:46:12
● 2016-09-30 18:50:06
● 2017-01-14 09:50:58
○ 2026-03-08 11:35:58
○ 2026-03-23 11:25:24

○A72.52.4.912016-08-18 → 2016-08-18 · 4 obs

○ 2015-10-10 02:22:24
● 2016-08-18 05:46:12
○ 2016-09-30 18:50:06
○ 2026-03-23 11:25:24

●A76.223.54.1462026-03-08 → 2026-03-23 · 3 obs

○ 2017-01-14 09:50:58
● 2026-03-08 11:35:58
● 2026-03-23 11:25:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
master-school.com	ns1.afternic.com, ns2.afternic.com, verification-gjjm2jeym5xxdn3znfqwjz.ns101.verify.hn	4 records

✅ Authoritative Response

Server:97.74.98.69

NS records: ns1.afternic.com, ns2.afternic.com, verification-gjjm2jeym5xxdn3znfqwjz.ns101.verify.hn

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for master-school.com (unsigned zone)

⏱️ Timing

Total: 3447ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`76.223.54.146, 13.248.169.48`
NS	2	`ns1.afternic.com, ns2.afternic.com`
MX	1	`. (pri: 0)`
TXT	1	`v=spf1 -all`
SOA	1	`ns1.afternic.com dns.jomax.net`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns1.afternic.com, ns1.afternic.com, ns2.afternic.com...)

Analysis

IP Addresses

nullmx.master-school.com points to two IP numbers: 13.248.169.48 and 76.223.54.146.

Other host names, for instance dentaladmin.com, franchisebyindustries.com, startdesi.com, voiceofmillions.com and www.telxx.com share IP numbers with nullmx.master-school.com.

Name Servers

Delegation for nullmx.master-school.com rests with two name servers, ns1.afternic.com and ns2.afternic.com.

nullmx.master-school.com shares the same name server setup as other domains, including smf.crspace.com, littlefamilies.com, winwinresults.com, unemploymentrate.org and smtp.mongil.com.

nullmx.master-school.com at least partially shares name servers with other domains, for instance janken.net, salvor.xyz, nextessentials.com, prmed.com and aboutfood.co.

Host names with two IP numbers: ns1.afternic.com points to 2603:5:2126::45 and 97.74.98.69; ns2.afternic.com points to 2603:5:2226::45 and 173.201.66.69.

nullmx.master-school.com - robtex.com