`nullmx.www.mathcs.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.namefind.com` ⭐ ⚠️ Not in parent delegation
		A	97.74.99.64^{🇺🇸 GODADDY-DNS97.74.98.0/23}
			PTR	`ns1.namefind.com`
NS	`ns2.namefind.com` ⚠️ Not in parent delegation
		A	173.201.67.64^{🇺🇸 GODADDY-DNS173.201.66.0/23}
			PTR	`ns2.namefind.com`
TXT	`v=spf1 -all`
SOA	`ns1.namefind.com`dns@jomax.net 2023-03-15 #0

`www.mathcs.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	`ns1.namefind.com` ⭐ ⚠️ Not in parent delegation
	NS	`ns2.namefind.com` ⚠️ Not in parent delegation
	TXT	`v=spf1 -all`
	SOA	`ns1.namefind.com`dns@jomax.net 2023-03-15 #0

Previously MX for

www.mathcs.com

Same first word

nullmx.net

nullmx.org

nullmx.com

DNS History

4 records (4 active, 0 former)

●NSns1.namefind.com2026-05-21 → 2026-07-15 · 2 obs

● 2026-05-21 14:01:02
● 2026-07-15 12:47:04

●NSns2.namefind.com2026-05-21 → 2026-07-15 · 2 obs

● 2026-05-21 14:01:02
● 2026-07-15 12:47:04

●A13.248.169.482026-05-21 → 2026-07-15 · 2 obs

● 2026-05-21 14:01:02
● 2026-07-15 12:47:04

●A76.223.54.1462026-05-21 → 2026-07-15 · 2 obs

● 2026-05-21 14:01:02
● 2026-07-15 12:47:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
mathcs.com	ns2.namefind.com, ns1.namefind.com	2 records

✅ Authoritative Response

Server:173.201.67.64

NS records: ns2.namefind.com, ns1.namefind.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for mathcs.com (unsigned zone)

⏱️ Timing

Total: 217ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`13.248.169.48, 76.223.54.146`
NS	2	`ns1.namefind.com, ns2.namefind.com`
TXT	1	`v=spf1 -all`
SOA	1	`ns1.namefind.com dns.jomax.net`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.namefind.com, ns1.namefind.com)

Analysis

IP Addresses

nullmx.www.mathcs.com points to the IP addresses 13.248.169.48 and 76.223.54.146

Additional host names — sonskin.com, sdhomeopathy.com, zoopo.com and two others — share IP numbers with nullmx.www.mathcs.com.

Name Servers

DNS delegation for nullmx.www.mathcs.com points to two name servers: ns1.namefind.com and ns2.namefind.com.

nullmx.www.mathcs.com shares its name server setup with other domains, including airplanemaintenance.com, www.e-taamin.com, superemprego.com and two others.

Each of ns1.namefind.com and ns2.namefind.com has one IP address: ns1.namefind.com uses 97.74.99.64 and ns2.namefind.com uses 173.201.67.64.

nullmx.www.mathcs.com - robtex.com