`mail.semanticsys.org`

	DNSSEC	⚠️ Not signed
	A	2606:4700:3034::6815:115b^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	A	2606:4700:3037::ac43:af69^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	A	104.21.17.91^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	A	172.67.175.105^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}

`semanticsys.org`

	DNSSEC	⚠️ Not signed
	A	2606:4700:3034::6815:115b^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	A	2606:4700:3037::ac43:af69^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	A	104.21.17.91^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	A	172.67.175.105^{🇺🇸 Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
	NS	`anna.ns.cloudflare.com` ⭐
	NS	`keaton.ns.cloudflare.com`
	MX	`_dc-mx.db920c46922f.semanticsys.org` ⭐
	TXT	`v=spf1 a mx ~all`
	SOA	`anna.ns.cloudflare.com`dns@cloudflare.com serial=2383095720

Previously MX for

semanticsys.org

mail.semanticsys.org

Same first word

mail.com.mk

mail.ap.gov.br

mail.dp.ua

mail.myjino.ru

mail.space

mail.net.ph

mail.rr.gov.br

mail.read-books.org

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mail.dnsalias.com

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mail.photography

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mail.storage

mail.energy

mail.mods.jp

mail.online

mail.ras.ru

mail.ls

mail.app

mail.co.kr

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DNS History

10 records (4 active, 6 former)

○NSns01.zonereg.ru2016-07-15 → 2016-07-15 · 3 obs

● 2016-07-15 15:17:34
○ 2026-04-10 17:19:50
○ 2026-04-15 01:41:22

○NSns02.zonereg.ru2016-07-15 → 2016-07-15 · 3 obs

● 2016-07-15 15:17:34
○ 2026-04-10 17:19:50
○ 2026-04-15 01:41:22

○MXmail.semanticsys.org2016-07-15 → 2016-07-15 · 3 obs

● 2016-07-15 15:17:34
○ 2026-04-10 17:19:50
○ 2026-04-15 01:41:22

●A104.21.17.912026-04-10 → 2026-04-15 · 3 obs

○ 2016-07-15 15:17:34
● 2026-04-10 17:19:50
● 2026-04-15 01:41:22

●A172.67.175.1052026-04-10 → 2026-04-15 · 3 obs

○ 2016-07-15 15:17:34
● 2026-04-10 17:19:50
● 2026-04-15 01:41:22

○A198.37.113.922016-07-15 → 2016-07-15 · 4 obs

○ 2016-03-25 07:28:40
● 2016-07-15 15:17:34
○ 2026-04-10 17:19:50
○ 2026-04-15 01:41:22

●A2606:4700:3034::6815:115b2026-04-10 → 2026-04-15 · 3 obs

○ 2016-07-15 15:17:34
● 2026-04-10 17:19:50
● 2026-04-15 01:41:22

●A2606:4700:3037::ac43:af692026-04-10 → 2026-04-15 · 3 obs

○ 2016-07-15 15:17:34
● 2026-04-10 17:19:50
● 2026-04-15 01:41:22

○A62.109.30.1952015-06-06 → 2016-03-25 · 4 obs

● 2015-06-06 07:00:52
● 2016-03-25 07:28:40
○ 2016-07-15 15:17:34
○ 2026-04-15 01:41:22

○CNAMEsemanticsys.org2016-07-15 → 2016-07-15 · 3 obs

● 2016-07-15 15:17:34
○ 2026-04-10 17:19:50
○ 2026-04-15 01:41:22

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
org	b2.org.afilias-nst.org, b0.org.afilias-nst.org, d0.org.afilias-nst.org	-
semanticsys.org	anna.ns.cloudflare.com, keaton.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.102

NS records: anna.ns.cloudflare.com, keaton.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for semanticsys.org (unsigned zone)

⏱️ Timing

Total: 343ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.175.105, 104.21.17.91`
AAAA	2	`2606:4700:3034::6815:115b, 2606:4700:3037::ac43:af69`

Analysis

IP Addresses

mail.semanticsys.org resolves to four IP numbers: 2606:4700:3034::6815:115b, 2606:4700:3037::ac43:af69, 104.21.17.91 and 172.67.175.105.

other host names for instance mytxtbuddy.com, buroteloffices.com, hocksiong.com.sg, tw.xszav2.com and allaboutdoorspdx.com share IP numbers with mail.semanticsys.org.

mail.semanticsys.org - robtex.com