mx.engineeringknow.com - robtex.com
mx.engineeringknow.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::ac43:ad1c🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::6815:3fef🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.63.239Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.173.28🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.63.239, 172.67.173.28 | ||||||
| IPv6 hints | 2606:4700:3030::ac43:ad1c, 2606:4700:3033::6815:3fef | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=212, name=cloudflare-ech.com | ||||||
engineeringknow.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::ac43:ad1c🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::6815:3fef🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.63.239Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.173.28🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | alaric.ns.cloudflare.com ⭐ | ||||||
| NS | paityn.ns.cloudflare.com | ||||||
| MX | mx.engineeringknow.com ⭐ | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.63.239, 172.67.173.28 | ||||||
| IPv6 hints | 2606:4700:3030::ac43:ad1c, 2606:4700:3033::6815:3fef | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=212, name=cloudflare-ech.com | ||||||
| SOA | alaric.ns.cloudflare.comdns@cloudflare.com serial=2402671999 | ||||||
MX for
Same first word
Similar names
xm.co |
xm.co.za |
xm.kiev.ua |
xm.js.cn |
xm.cc |
xm.by |
xm.world |
xm.lt |
xm.com.ua |
xm.ru |
xm.de |
xm.cl |
xm.sk |
xm.se |
xm.hu |
xm.com.co |
xm.africa |
xm.fi |
xm.is |
xm.am |
xm.money |
xm.be |
xm.cz |
xm.hk.cn |
xm.fj.cn |
xm.pl |
xm.vn.ua |
xm.house |
xm.mk |
xm.com |
DNS History
4 records (4 active, 0 former)
●A104.21.63.2392026-02-22 → 2026-05-12 · 2 obs
● 2026-02-22 14:01:00
● 2026-05-12 16:27:24
● 2026-05-12 16:27:24
●A172.67.173.282026-02-22 → 2026-05-12 · 2 obs
● 2026-02-22 14:01:00
● 2026-05-12 16:27:24
● 2026-05-12 16:27:24
●A2606:4700:3030::ac43:ad1c2026-02-22 → 2026-05-12 · 2 obs
● 2026-02-22 14:01:00
● 2026-05-12 16:27:24
● 2026-05-12 16:27:24
●A2606:4700:3033::6815:3fef2026-02-22 → 2026-05-12 · 2 obs
● 2026-02-22 14:01:00
● 2026-05-12 16:27:24
● 2026-05-12 16:27:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | b.gtld-servers.net, c.gtld-servers.net, m.gtld-servers.net, a.gtld-servers.net... | - |
| engineeringknow.com | paityn.ns.cloudflare.com, alaric.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.194.18
NS records: paityn.ns.cloudflare.com, alaric.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for engineeringknow.com (unsigned zone)
⏱️ Timing
Total: 354ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.63.239, 172.67.173.28 |
| AAAA | 2 | 2606:4700:3033::6815:3fef, 2606:4700:3030::ac43:ad1c |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (paityn.ns.cloudflare.com, paityn.ns.cloudflare.com, paityn.ns.cloudflare.com...)
Analysis
Mail Server Role
mx.engineeringknow.com serves as the mail server for engineeringknow.com.
IP Addresses
mx.engineeringknow.com resolves to four IPs: 2606:4700:3030::ac43:ad1c, 2606:4700:3033::6815:3fef, 104.21.63.239 and 172.67.173.28.
Other host names, for instance eatatgeorgias.com, bemlw.com, deansa.com.do, bromag.com and ns1.ooma.in share IP numbers with mx.engineeringknow.com.