mail.nbt.org - robtex.com

mail.nbt.org

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:a41b🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:4193🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.65.147Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.164.27🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.65.147, 172.67.164.27
IPv6 hints2606:4700:3030::ac43:a41b, 2606:4700:3034::6815:4193
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=171, name=cloudflare-ech.com

nbt.org

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:a41b🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3034::6815:4193🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.65.147Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.164.27🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSdora.ns.cloudflare.com ⭐
NSsid.ns.cloudflare.com
MX_dc-mx.05e0ca0951bc.nbt.org ⭐
TXTv=spf1 ip4:66.223.49.29 ip4:45.88.201.124 include:_spf.epikwebhosting.com +a ...
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.65.147, 172.67.164.27
IPv6 hints2606:4700:3030::ac43:a41b, 2606:4700:3034::6815:4193
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=171, name=cloudflare-ech.com
SOAdora.ns.cloudflare.comdns@cloudflare.com serial=2406771175

Previously MX for

nbt.org

Same first word

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DNS History

6 records (4 active, 2 former)

A104.21.65.147172.67.164.272606:4700:3030::ac43:a41b2606:4700:3034::6815:41932606:4700:3034::ac43:a41b2606:4700:3036::6815:4193
●A104.21.65.1472026-03-24 → 2026-07-19 · 2 obs
● 2026-03-24 09:23:44
● 2026-07-19 01:38:40
●A172.67.164.272026-03-24 → 2026-07-19 · 2 obs
● 2026-03-24 09:23:44
● 2026-07-19 01:38:40
●A2606:4700:3030::ac43:a41b2026-07-05 → 2026-07-19 · 3 obs
○ 2026-06-09 22:55:36
● 2026-07-05 02:58:30
● 2026-07-19 01:38:40
●A2606:4700:3034::6815:41932026-07-05 → 2026-07-19 · 3 obs
○ 2026-06-09 22:55:36
● 2026-07-05 02:58:30
● 2026-07-19 01:38:40
○A2606:4700:3034::ac43:a41b2026-03-24 → 2026-06-09 · 4 obs
● 2026-03-24 09:23:44
● 2026-06-09 22:55:36
○ 2026-07-05 02:58:30
○ 2026-07-19 01:38:40
○A2606:4700:3036::6815:41932026-03-24 → 2026-06-09 · 4 obs
● 2026-03-24 09:23:44
● 2026-06-09 22:55:36
○ 2026-07-05 02:58:30
○ 2026-07-19 01:38:40

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgb0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org-
nbt.orgsid.ns.cloudflare.com, dora.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.108

NS records: sid.ns.cloudflare.com, dora.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for nbt.org (unsigned zone)

⏱️ Timing

Total: 294ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.65.147, 172.67.164.27
AAAA22606:4700:3030::ac43:a41b, 2606:4700:3034::6815:4193
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.nbt.org directs to four IP numbers, which are 104.21.65.147, 172.67.164.27, 2606:4700:3030::ac43:a41b and 2606:4700:3034::6815:4193.

explodeyourload.com, b.s102-mobilhatunlar.ceb.im, mobil(0x706f726e).ceb.im plus two other host names have IP numbers in common with mail.nbt.org.