`nullmx.tcdiscount.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:be1d^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:2188^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.33.136^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.190.29^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.33.136, 172.67.190.29
		IPv6 hints	2606:4700:3030::ac43:be1d, 2606:4700:3036::6815:2188
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=37, name=cloudflare-ech.com

`tcdiscount.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:be1d^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::6815:2188^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.33.136^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.190.29^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`cass.ns.cloudflare.com` ⭐
NS	`henry.ns.cloudflare.com`
TXT	`7j8d11rp7fv32odgk8r7tte5qt`
TXT	`87887th05g9257uqmmc9a9uf9o`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.33.136, 172.67.190.29
		IPv6 hints	2606:4700:3030::ac43:be1d, 2606:4700:3036::6815:2188
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=37, name=cloudflare-ech.com
SOA	`cass.ns.cloudflare.com`dns@cloudflare.com serial=2399522574

Same first word

nullmx.org

nullmx.com

nullmx.net

Similar names

mlnxul.com

DNS History

6 records (4 active, 2 former)

●A104.21.33.1362026-02-24 → 2026-04-13 · 3 obs

○ 2016-07-15 07:52:56
● 2026-02-24 12:22:22
● 2026-04-13 15:45:40

●A172.67.190.292026-02-24 → 2026-04-13 · 3 obs

○ 2016-07-15 07:52:56
● 2026-02-24 12:22:22
● 2026-04-13 15:45:40

●A2606:4700:3030::ac43:be1d2026-02-24 → 2026-04-13 · 3 obs

○ 2016-07-15 07:52:56
● 2026-02-24 12:22:22
● 2026-04-13 15:45:40

●A2606:4700:3036::6815:21882026-02-24 → 2026-04-13 · 3 obs

○ 2016-07-15 07:52:56
● 2026-02-24 12:22:22
● 2026-04-13 15:45:40

○A40.112.210.2002016-03-10 → 2016-07-15 · 5 obs

○ 2015-12-12 03:06:58
● 2016-03-10 16:08:18
● 2016-07-15 07:52:56
○ 2026-02-24 12:22:22
○ 2026-04-13 15:45:40

○A66.29.208.72015-07-18 → 2015-12-12 · 4 obs

● 2015-07-18 14:54:38
● 2015-12-12 03:06:58
○ 2016-03-10 16:08:18
○ 2026-04-13 15:45:40

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, g.gtld-servers.net, a.gtld-servers.net, m.gtld-servers.net...	-
tcdiscount.com	cass.ns.cloudflare.com, henry.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.176

NS records: cass.ns.cloudflare.com, henry.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for tcdiscount.com (unsigned zone)

⏱️ Timing

Total: 229ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.33.136, 172.67.190.29`
AAAA	2	`2606:4700:3036::6815:2188, 2606:4700:3030::ac43:be1d`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (cass.ns.cloudflare.com, cass.ns.cloudflare.com, cass.ns.cloudflare.com...)

Analysis

IP Addresses

nullmx.tcdiscount.com points to four IP numbers: 2606:4700:3030::ac43:be1d, 2606:4700:3036::6815:2188, 104.21.33.136 and 172.67.190.29.

Other host names, for instance investspy.com, inext.com.cn, gg.kthx.net, hxa.eu and wapforum.org share IP numbers with nullmx.tcdiscount.com.

nullmx.tcdiscount.com - robtex.com