`nullmx.teacusa.com`

DNSSEC

⚠️ Not signed

`teacusa.com`

	DNSSEC	⚠️ Not signed
	A	23.227.38.65^{🇨🇦 Cloudflare23.227.38.0/23 Shopify 151 O'Connor Street, Ground floor Ottawa ON K2P 2L8 Canada}
	NS	`ns0.directnic.com` ⭐
	NS	`ns1.directnic.com`
	NS	`ns2.directnic.com`
	NS	`ns3.directnic.com`
	SOA	`ns0.directnic.com`hostmaster@ns0.directnic.com 2023-12-15 #20

Previously MX for

teacusa.com

Same first word

nullmx.net

nullmx.org

nullmx.com

DNS History

5 records (0 active, 5 former)

○NSns1.dnslink.com2015-08-19 → 2016-08-08 · 4 obs

○ 2008-03-18 00:39:26
● 2015-08-19 13:51:40
● 2016-08-08 16:49:34
○ 2026-07-27 19:02:14

○NSns2.dnslink.com2015-08-19 → 2016-08-08 · 4 obs

○ 2008-03-18 00:39:26
● 2015-08-19 13:51:40
● 2016-08-08 16:49:34
○ 2026-07-27 19:02:14

○MXmail.b-io.co2015-08-19 → 2016-08-08 · 4 obs

○ 2008-03-18 00:39:26
● 2015-08-19 13:51:40
● 2016-08-08 16:49:34
○ 2026-07-27 19:02:14

○A209.15.13.1342015-08-19 → 2016-08-08 · 4 obs

○ 2008-03-18 00:39:26
● 2015-08-19 13:51:40
● 2016-08-08 16:49:34
○ 2026-07-27 19:02:14

○A209.181.247.1052008-03-18 → 2008-03-18 · 3 obs

● 2008-03-18 00:39:26
○ 2015-08-19 13:51:40
○ 2026-07-27 19:02:14

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, b.gtld-servers.net, i.gtld-servers.net, l.gtld-servers.net...	-
teacusa.com	ns0.directnic.com, ns1.directnic.com, ns3.directnic.com, ns2.directnic.com	8 records

✅ Authoritative Response

Server:104.143.9.41

NS records: ns0.directnic.com, ns1.directnic.com, ns3.directnic.com, ns2.directnic.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for teacusa.com (unsigned zone)

⏱️ Timing

Total: 236ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns0.directnic.com, ns0.directnic.com, ns1.directnic.com...)

nullmx.teacusa.com - robtex.com