mail.hrtz.org - robtex.com

mail.hrtz.org

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:1251🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:b53e🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.18.81Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.181.62🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.18.81, 172.67.181.62
IPv6 hints2606:4700:3033::6815:1251, 2606:4700:3035::ac43:b53e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=125, name=cloudflare-ech.com

hrtz.org

DNSSEC⚠️ Not signed
A2606:4700:3033::6815:1251🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3035::ac43:b53e🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.18.81Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.181.62🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSleia.ns.cloudflare.com ⭐
NSleo.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.18.81, 172.67.181.62
IPv6 hints2606:4700:3033::6815:1251, 2606:4700:3035::ac43:b53e
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=125, name=cloudflare-ech.com
SOAleia.ns.cloudflare.comdns@cloudflare.com serial=2398567346

Previously MX for

hrtz.org

Same first word

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DNS History

5 records (4 active, 1 former)

20162017201820192020202120222023202420252026A104.21.18.81172.67.181.622606:4700:3033::6815:12512606:4700:3035::ac43:b53e127.0.0.2
●A104.21.18.812026-04-14 → 2026-04-14 · 2 obs
○ 2017-01-03 04:52:26
● 2026-04-14 04:30:10
○A127.0.0.22015-06-14 → 2017-01-03 · 3 obs
● 2015-06-14 13:01:48
● 2017-01-03 04:52:26
○ 2026-04-14 04:30:10
●A172.67.181.622026-04-14 → 2026-04-14 · 2 obs
○ 2017-01-03 04:52:26
● 2026-04-14 04:30:10
●A2606:4700:3033::6815:12512026-04-14 → 2026-04-14 · 2 obs
○ 2017-01-03 04:52:26
● 2026-04-14 04:30:10
●A2606:4700:3035::ac43:b53e2026-04-14 → 2026-04-14 · 2 obs
○ 2017-01-03 04:52:26
● 2026-04-14 04:30:10

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgd0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org-
hrtz.orgleo.ns.cloudflare.com, leia.ns.cloudflare.com-

✅ Authoritative Response

Server:172.64.32.184

NS records: leo.ns.cloudflare.com, leia.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for hrtz.org (unsigned zone)

⏱️ Timing

Total: 222ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.18.81, 172.67.181.62
AAAA22606:4700:3035::ac43:b53e, 2606:4700:3033::6815:1251
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mail.hrtz.org maps to four IP numbers: 2606:4700:3033::6815:1251, 2606:4700:3035::ac43:b53e, 104.21.18.81 and 172.67.181.62.

Other host names such as cegkereso.com, nachhilfe-kurier.de, robinvandervliet.nl, aquariumage.com and www.pizzaepizzas.com.br share IPs with mail.hrtz.org.