`nullmx.schoolhelper.com`

DNSSEC	⚠️ Not signed
A	3.33.243.145^{🇺🇸 Amazon3.33.240.0/20}
		PTR	`a3edc0dabdef92d6d.awsglobalaccelerator.com`
A	15.197.204.56^{🇺🇸 Amazon15.197.192.0/20}
TXT	`v=spf1 -all`

`schoolhelper.com`

	DNSSEC	⚠️ Not signed
	A	3.33.243.145^{🇺🇸 Amazon3.33.240.0/20}
	A	15.197.204.56^{🇺🇸 Amazon15.197.192.0/20}
	NS	`ns37.domaincontrol.com` ⭐
	NS	`ns38.domaincontrol.com`
	SOA	`ns37.domaincontrol.com`dns@jomax.net 2023-03-31 #16

Previously MX for

schoolhelper.com

Same first word

nullmx.org

nullmx.com

nullmx.net

Similar names

mlnxul.com

DNS History

7 records (2 active, 5 former)

○NSbuy.internettraffic.com2015-10-20 → 2016-04-21 · 4 obs

● 2015-10-20 17:41:18
● 2016-04-21 01:37:40
○ 2026-04-09 09:10:52
○ 2026-04-12 19:33:04

○NSsell.internettraffic.com2015-10-20 → 2016-04-21 · 4 obs

● 2015-10-20 17:41:18
● 2016-04-21 01:37:40
○ 2026-04-09 09:10:52
○ 2026-04-12 19:33:04

●A15.197.204.562026-04-09 → 2026-04-12 · 3 obs

○ 2016-04-21 01:37:40
● 2026-04-09 09:10:52
● 2026-04-12 19:33:04

○A209.181.247.1052015-06-04 → 2015-06-04 · 3 obs

● 2015-06-04 21:34:20
○ 2015-10-20 17:41:18
○ 2026-04-12 19:33:04

●A3.33.243.1452026-04-09 → 2026-04-12 · 3 obs

○ 2016-04-21 01:37:40
● 2026-04-09 09:10:52
● 2026-04-12 19:33:04

○A69.172.201.1532016-04-21 → 2016-04-21 · 4 obs

○ 2016-01-04 20:57:14
● 2016-04-21 01:37:40
○ 2026-04-09 09:10:52
○ 2026-04-12 19:33:04

○A69.172.201.2082015-10-20 → 2016-01-04 · 5 obs

○ 2015-06-04 21:34:20
● 2015-10-20 17:41:18
● 2016-01-04 20:57:14
○ 2016-04-21 01:37:40
○ 2026-04-12 19:33:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
schoolhelper.com	ns37.domaincontrol.com, ns38.domaincontrol.com	4 records

✅ Authoritative Response

Server:97.74.108.19

NS records: ns37.domaincontrol.com, ns38.domaincontrol.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for schoolhelper.com (unsigned zone)

⏱️ Timing

Total: 116ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`15.197.204.56, 3.33.243.145`
TXT	1	`v=spf1 -all`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns37.domaincontrol.com, ns37.domaincontrol.com, ns38.domaincontrol.com...)

Analysis

IP Addresses

nullmx.schoolhelper.com resolves to two IP numbers: 3.33.243.145 and 15.197.204.56.

other host names including retailcompany.biz, holidaystograncanaria.co.uk, 154.37.bidcheaply.com, trackamps.com and facesofhai.org share IP numbers with nullmx.schoolhelper.com.

nullmx.schoolhelper.com - robtex.com