`mail.orgcalendar.com`

CNAME	`orgcalendar.com`
DNSSEC	⚠️ Not signed
A	170.249.200.230^{🇺🇸 PRIVATESYSTEMS170.249.192.0/20 PrivateSystems Networks GA}
		PTR	`yooker.com`
NS	`ns1.server.zeerk.com` ⭐ ⚠️ Not in parent delegation
NS	`ns1.orgbusiness.com` ⚠️ Not in zone NS records
		A	2606:4700:3032::ac43:9df6^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	2606:4700:3035::6815:390e^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	104.21.57.14^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.67.157.246^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.orgbusiness.com` ⚠️ Not in zone NS records
		A	2606:4700:3032::ac43:9df6^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	2606:4700:3035::6815:390e^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	104.21.57.14^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
		A	172.67.157.246^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
NS	`ns2.server.zeerk.com` ⚠️ Not in parent delegation
MX	`orgcalendar.com` ⭐
		A	170.249.200.230^{🇺🇸 PRIVATESYSTEMS170.249.192.0/20 PrivateSystems Networks GA}
			PTR	`yooker.com`
TXT	`v=spf1 a mx ip4:170.249.200.230 ~all`
SOA	`ns1.server.zeerk.com`admin@zeerk.com 2025-11-29 #3

`orgcalendar.com`

	DNSSEC	⚠️ Not signed
	A	170.249.200.230^{🇺🇸 PRIVATESYSTEMS170.249.192.0/20 PrivateSystems Networks GA}
	NS	`ns1.server.zeerk.com` ⭐ ⚠️ Not in parent delegation
	NS	`ns1.orgbusiness.com` ⚠️ Not in zone NS records
	NS	`ns2.orgbusiness.com` ⚠️ Not in zone NS records
	NS	`ns2.server.zeerk.com` ⚠️ Not in parent delegation
	MX	`orgcalendar.com` ⭐
	TXT	`v=spf1 a mx ip4:170.249.200.230 ~all`
	SOA	`ns1.server.zeerk.com`admin@zeerk.com 2025-11-29 #3

Previously MX for

orgcalendar.com

Same first word

mail.bike

mail.gr

mail.srv.br

mail.dyn-vpn.de

mail.serveminecraft.net

mail.gov.cn

mail.staba.jp

mail.pinoko.jp

mail.in.th

mail.tech

mail.rakkestad.no

mail.gov.bm

mail.com.py

mail.guru

mail.bing

mail.lv

mail.babyblue.jp

mail.in-berlin.de

mail.no-ip.biz

mail.host

mail.management

mail.qld.gov.au

mail.pm

mail.wf

mail.ltd

mail.com.pe

mail.marketing

mail.velvet.jp

mail.fage

mail.coach

mail.abbott

mail.weir

mail.wroclaw.pl

mail.et

mail.za.net

mail.bz

mail.fakefur.jp

mail.sb

mail.ht

mail.ax

mail.spdns.eu

mail.collegefan.org

mail.com.cn

mail.cab

mail.vn.ua

mail.lat

mail.mg.gov.br

mail.kiev.ua

mail.mydns.tw

mail.report

mail.fail

mail.gov.ee

mail.blogspot.com

mail.gob.bo

mail.dnsfor.me

mail.dix.asia

mail.gov.nr

mail.sg

mail.eu.com

mail.camp

mail.nic.za

mail.pink

mail.vg

mail.guide

mail.chips.jp

mail.info

mail.simplesite.com

mail.gw

mail.tv

mail.jellybean.jp

mail.eg

mail.chu.jp

mail.gouv.sn

mail.gov.la

mail.sub.jp

mail.co.ro

mail.com.sg

mail.kikirara.jp

mail.mydns.jp

mail.hr

mail.gov.tn

mail.pb.gov.br

mail.oops.jp

mail.eu

mail.(0x7075737379)cat.jp

mail.tm

mail.boo.jp

mail.co.za

mail.zp.ua

mail.ac.me

mail.info.at

mail.nis.za

mail.gov.ua

mail.net.ua

mail.com.au

mail.cat

mail.vin

mail.stripper.jp

mail.ciao.jp

mail.gov.vc

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DNS History

7 records (1 active, 6 former)

○NSns1.zeerk.com2016-02-04 → 2016-06-18 · 3 obs

● 2016-02-04 18:30:28
● 2016-06-18 15:17:54
○ 2026-04-11 20:02:28

○NSns2.zeerk.com2016-02-04 → 2016-06-18 · 3 obs

● 2016-02-04 18:30:28
● 2016-06-18 15:17:54
○ 2026-04-11 20:02:28

○MXorgcalendar.com2016-02-04 → 2016-06-18 · 3 obs

● 2016-02-04 18:30:28
● 2016-06-18 15:17:54
○ 2026-04-11 20:02:28

○A104.193.108.52016-02-04 → 2016-06-18 · 4 obs

○ 2015-11-12 08:27:18
● 2016-02-04 18:30:28
● 2016-06-18 15:17:54
○ 2026-04-11 20:02:28

○A192.185.35.642015-11-12 → 2015-11-12 · 4 obs

○ 2015-06-22 00:44:24
● 2015-11-12 08:27:18
○ 2016-02-04 18:30:28
○ 2026-04-11 20:02:28

○A23.91.123.172015-06-22 → 2015-06-22 · 3 obs

● 2015-06-22 00:44:24
○ 2015-11-12 08:27:18
○ 2026-04-11 20:02:28

●CNAMEorgcalendar.com2016-02-04 → 2026-04-11 · 2 obs

● 2016-02-04 18:30:28
● 2026-04-11 20:02:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	h.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net...	-
orgcalendar.com	ns2.orgbusiness.com, ns1.orgbusiness.com	2 records

✅ Authoritative Response

Server:170.249.200.230

NS records: ns2.orgbusiness.com, ns1.orgbusiness.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for orgcalendar.com (unsigned zone)

⏱️ Timing

Total: 211ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`orgcalendar.com`

📌 Glue Records Collected

Total: 2

Out-of-bailiwick: 2 (ns2.orgbusiness.com, ns1.orgbusiness.com)

Analysis

IP Addresses

mail.orgcalendar.com resolves to one IP number: 170.249.200.230.

Other host names, for instance _dc-mx.d332d61a7449.zebra-media.com, orgcalendar.com, _dc-mx.9f7174b1e271.binaryhouse.com, _dc-mx.29e6533d3ed9.orgbusiness.com and ns1.btclancer.com share IP numbers with mail.orgcalendar.com.

Name Servers

mail.orgcalendar.com delegates to four name servers: ns1.orgbusiness.com, ns2.orgbusiness.com, ns1.server.zeerk.com and ns2.server.zeerk.com.

mail.orgcalendar.com at least partially shares name servers with other domains, for example orgcalendar.com.

Host names with four IPs:

ns1.orgbusiness.com resolves to: 2606:4700:3032::ac43:9df6, 2606:4700:3035::6815:390e, 104.21.57.14 and 172.67.157.246.

ns2.orgbusiness.com resolves to: 2606:4700:3032::ac43:9df6, 2606:4700:3035::6815:390e, 104.21.57.14 and 172.67.157.246.

Hosts that resolve to 2606:4700:3032::ac43:9df6: ns1.orgbusiness.com and ns2.orgbusiness.com.

Hosts that resolve to 2606:4700:3035::6815:390e: ns1.orgbusiness.com and ns2.orgbusiness.com.

Hosts that resolve to 104.21.57.14: ns1.orgbusiness.com and ns2.orgbusiness.com.

Hosts that resolve to 172.67.157.246: ns1.orgbusiness.com and ns2.orgbusiness.com.

Mail Servers

A single mail server handles mail.orgcalendar.com, orgcalendar.com.

mail.orgcalendar.com shares the same mail server setup as other domains, for example orgcalendar.com.

Host name orgcalendar.com resolves to a single IP: 170.249.200.230.

mail.orgcalendar.com - robtex.com