mx.simsi.org - robtex.com

mx.simsi.org

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:4b86🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:b14a🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.75.134Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.177.74🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.75.134, 172.67.177.74
IPv6 hints2606:4700:3031::6815:4b86, 2606:4700:3032::ac43:b14a
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=95, name=cloudflare-ech.com

simsi.org

DNSSEC⚠️ Not signed
A2606:4700:3031::6815:4b86🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:b14a🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.75.134Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.177.74🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSaustin.ns.cloudflare.com ⭐
NSkehlani.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.75.134, 172.67.177.74
IPv6 hints2606:4700:3031::6815:4b86, 2606:4700:3032::ac43:b14a
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=95, name=cloudflare-ech.com
SOAaustin.ns.cloudflare.comdns@cloudflare.com serial=2397282561
WOT: SAFE (61/100)

Previously MX for

simsi.org

Same first word

mx.au
mx.go.gov.br
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mx.123hjemmeside.no
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Similar names

xm.nl
xm.cn
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mx.ee
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xm.be
xm.cz
xm.hk.cn
xm.fj.cn
xm.pl
xm.vn.ua
xm.house
xm.mk
xm.com

DNS History

16 records (4 active, 12 former)

20162017201820192020202120222023202420252026A104.21.75.134172.67.177.742606:4700:3031::6815:4b862606:4700:3032::ac43:b14a188.114.96.0188.114.97.02a06:98c1:3120::2a06:98c1:3121::62.149.128.15162.149.128.15462.149.128.15762.149.128.16062.149.128.16362.149.128.16662.149.128.7262.149.128.74
●A104.21.75.1342026-03-06 → 2026-04-12 · 8 obs
○ 2016-07-09 10:37:52
● 2026-03-06 10:41:28
○ 2026-03-11 01:39:44
○ 2026-03-11 05:31:10
● 2026-03-11 07:32:22
○ 2026-03-14 21:24:30
● 2026-03-31 19:21:54
● 2026-04-12 17:14:34
●A172.67.177.742026-03-06 → 2026-04-12 · 8 obs
○ 2016-07-09 10:37:52
● 2026-03-06 10:41:28
○ 2026-03-11 01:39:44
○ 2026-03-11 05:31:10
● 2026-03-11 07:32:22
○ 2026-03-14 21:24:30
● 2026-03-31 19:21:54
● 2026-04-12 17:14:34
○A188.114.96.02026-03-11 → 2026-03-14 · 7 obs
○ 2026-03-06 10:41:28
● 2026-03-11 01:39:44
● 2026-03-11 05:31:10
○ 2026-03-11 07:32:22
● 2026-03-14 21:24:30
○ 2026-03-31 19:21:54
○ 2026-04-12 17:14:34
○A188.114.97.02026-03-11 → 2026-03-14 · 7 obs
○ 2026-03-06 10:41:28
● 2026-03-11 01:39:44
● 2026-03-11 05:31:10
○ 2026-03-11 07:32:22
● 2026-03-14 21:24:30
○ 2026-03-31 19:21:54
○ 2026-04-12 17:14:34
●A2606:4700:3031::6815:4b862026-03-06 → 2026-04-12 · 8 obs
○ 2016-07-09 10:37:52
● 2026-03-06 10:41:28
○ 2026-03-11 01:39:44
○ 2026-03-11 05:31:10
● 2026-03-11 07:32:22
○ 2026-03-14 21:24:30
● 2026-03-31 19:21:54
● 2026-04-12 17:14:34
●A2606:4700:3032::ac43:b14a2026-03-06 → 2026-04-12 · 8 obs
○ 2016-07-09 10:37:52
● 2026-03-06 10:41:28
○ 2026-03-11 01:39:44
○ 2026-03-11 05:31:10
● 2026-03-11 07:32:22
○ 2026-03-14 21:24:30
● 2026-03-31 19:21:54
● 2026-04-12 17:14:34
○A2a06:98c1:3120::2026-03-11 → 2026-03-14 · 7 obs
○ 2026-03-06 10:41:28
● 2026-03-11 01:39:44
● 2026-03-11 05:31:10
○ 2026-03-11 07:32:22
● 2026-03-14 21:24:30
○ 2026-03-31 19:21:54
○ 2026-04-12 17:14:34
○A2a06:98c1:3121::2026-03-11 → 2026-03-14 · 7 obs
○ 2026-03-06 10:41:28
● 2026-03-11 01:39:44
● 2026-03-11 05:31:10
○ 2026-03-11 07:32:22
● 2026-03-14 21:24:30
○ 2026-03-31 19:21:54
○ 2026-04-12 17:14:34
○A62.149.128.1512015-08-06 → 2016-07-09 · 4 obs
● 2015-08-06 06:35:44
● 2016-07-09 10:37:52
○ 2026-03-06 10:41:28
○ 2026-04-12 17:14:34
○A62.149.128.1542015-08-06 → 2016-07-09 · 4 obs
● 2015-08-06 06:35:44
● 2016-07-09 10:37:52
○ 2026-03-06 10:41:28
○ 2026-04-12 17:14:34
○A62.149.128.1572015-08-06 → 2016-07-09 · 4 obs
● 2015-08-06 06:35:44
● 2016-07-09 10:37:52
○ 2026-03-06 10:41:28
○ 2026-04-12 17:14:34
○A62.149.128.1602015-08-06 → 2016-07-09 · 4 obs
● 2015-08-06 06:35:44
● 2016-07-09 10:37:52
○ 2026-03-06 10:41:28
○ 2026-04-12 17:14:34
○A62.149.128.1632015-08-06 → 2016-07-09 · 4 obs
● 2015-08-06 06:35:44
● 2016-07-09 10:37:52
○ 2026-03-06 10:41:28
○ 2026-04-12 17:14:34
○A62.149.128.1662015-08-06 → 2016-07-09 · 4 obs
● 2015-08-06 06:35:44
● 2016-07-09 10:37:52
○ 2026-03-06 10:41:28
○ 2026-04-12 17:14:34
○A62.149.128.722015-08-06 → 2016-07-09 · 4 obs
● 2015-08-06 06:35:44
● 2016-07-09 10:37:52
○ 2026-03-06 10:41:28
○ 2026-04-12 17:14:34
○A62.149.128.742015-08-06 → 2016-07-09 · 4 obs
● 2015-08-06 06:35:44
● 2016-07-09 10:37:52
○ 2026-03-06 10:41:28
○ 2026-04-12 17:14:34

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
orgd0.org.afilias-nst.org, b2.org.afilias-nst.org, b0.org.afilias-nst.org-
simsi.orgkehlani.ns.cloudflare.com, austin.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.193.70

NS records: kehlani.ns.cloudflare.com, austin.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for simsi.org (unsigned zone)

⏱️ Timing

Total: 278ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.177.74, 104.21.75.134
AAAA22606:4700:3032::ac43:b14a, 2606:4700:3031::6815:4b86
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

mx.simsi.org resolves to four IPs: 2606:4700:3031::6815:4b86, 2606:4700:3032::ac43:b14a, 104.21.75.134 and 172.67.177.74.

Other host names, for instance ns2121care.org, meadowbrookdentalcentre.com, greetings.bg, medanbisnisdaily.com and instantoffices.com.au share IP numbers with mx.simsi.org.