`nullmx.jz13.com`

DNSSEC

⚠️ Not signed

`jz13.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::6815:5921^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:88f7^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.89.33^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.136.247^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`kirk.ns.cloudflare.com` ⭐
NS	`melany.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.89.33, 172.67.136.247
		IPv6 hints	2606:4700:3036::6815:5921, 2606:4700:3036::ac43:88f7
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=146, name=cloudflare-ech.com
SOA	`kirk.ns.cloudflare.com`dns@cloudflare.com serial=2398980271

Previously MX for

jz13.com

Same first word

nullmx.org

nullmx.com

nullmx.net

Similar names

mlnxul.com

DNS History

2 records (0 active, 2 former)

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

● 2008-03-16 20:40:32
○ 2015-10-12 15:22:50
○ 2026-04-13 00:49:20

○A23.27.192.1152016-03-19 → 2016-07-15 · 4 obs

○ 2015-10-12 15:22:50
● 2016-03-19 21:54:32
● 2016-07-15 21:24:40
○ 2026-04-13 00:49:20

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
jz13.com	kirk.ns.cloudflare.com, melany.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.192

NS records: kirk.ns.cloudflare.com, melany.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for jz13.com (unsigned zone)

⏱️ Timing

Total: 113ms | Queries: -

📄 Records

Type	Count	Sample Data

📌 Glue Records Collected

Total: 12

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

nullmx.jz13.com - robtex.com

nullmx.jz13.com

jz13.com