`zerocalendar.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::6815:39f2^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3032::ac43:c23f^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.57.242^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.194.63^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`coleman.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c40^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coleman.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c340^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`coleman.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2340^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`coleman.ns.cloudflare.com`
		A	108.162.195.64^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coleman.ns.cloudflare.com`
		A	162.159.44.64^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coleman.ns.cloudflare.com`
		A	172.64.35.64^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`coleman.ns.cloudflare.com`
NS	`dana.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a69^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dana.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c069^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dana.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2069^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dana.ns.cloudflare.com`
		A	108.162.192.105^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dana.ns.cloudflare.com`
		A	172.64.32.105^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dana.ns.cloudflare.com`
		A	173.245.58.105^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dana.ns.cloudflare.com`
MX	`mx01.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
MX	`mx02.mail.icloud.com` ⭐
		A	17.42.251.62^{🇺🇸 Apple17.42.0.0/16}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
			PTR	`mx3.mail.icloud.com`
		A	17.56.9.31^{🇺🇸 Apple17.56.9.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.152.5^{🇺🇸 Apple17.57.152.0/23}
		A	17.57.154.33^{🇺🇸 Apple17.57.154.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.155.25^{🇺🇸 Apple17.57.155.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
		A	17.57.156.30^{🇺🇸 Apple17.57.156.0/24}
			PTR	`mx01.mail.icloud.com`
			PTR	`mx02.mail.icloud.com`
TXT	`apple-domain=MyeNsS7PG4Mybu2N`
TXT	`google-site-verification=NKxNFT9nsQ4zpA4a98eIMyW5kceAPgiAQX2BnSaXCmk`
TXT	`v=spf1 include:icloud.com ~all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.57.242, 172.67.194.63
		IPv6 hints	2606:4700:3030::6815:39f2, 2606:4700:3032::ac43:c23f
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=85, name=cloudflare-ech.com
SOA	`coleman.ns.cloudflare.com`dns@cloudflare.com serial=2399108603

`com`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.gtld-servers.net` ⭐
	NS	`b.gtld-servers.net`
	NS	`c.gtld-servers.net`
	NS	`d.gtld-servers.net`
	NS	`e.gtld-servers.net`
	NS	`f.gtld-servers.net`
	NS	`g.gtld-servers.net`
	NS	`h.gtld-servers.net`
	NS	`i.gtld-servers.net`
	NS	`j.gtld-servers.net`
	NS	`k.gtld-servers.net`
	NS	`l.gtld-servers.net`
	NS	`m.gtld-servers.net`
	SOA	`a.gtld-servers.net`nstld@verisign-grs.com serial=1776100932

Same first word

zerocalendar.com

Similar names

calendarzero.com

DNS History

17 records (8 active, 9 former)

○NSa.ns36.de2016-08-11 → 2016-08-11 · 4 obs

○ 2016-03-01 23:19:58
● 2016-08-11 03:58:48
○ 2020-01-09 02:17:22
○ 2026-04-13 17:49:12

○NSb.ns36.de2016-08-11 → 2016-08-11 · 4 obs

○ 2016-03-01 23:19:58
● 2016-08-11 03:58:48
○ 2020-01-09 02:17:22
○ 2026-04-13 17:49:12

●NScoleman.ns.cloudflare.com2026-04-03 → 2026-04-13 · 3 obs

○ 2020-01-09 02:17:22
● 2026-04-03 00:17:46
● 2026-04-13 17:49:12

●NSdana.ns.cloudflare.com2026-04-03 → 2026-04-13 · 3 obs

○ 2020-01-09 02:17:22
● 2026-04-03 00:17:46
● 2026-04-13 17:49:12

○NSns27.1and1.com2015-08-15 → 2016-03-01 · 4 obs

● 2015-08-15 01:36:06
● 2016-03-01 23:19:58
○ 2016-08-11 03:58:48
○ 2026-04-13 17:49:12

○NSns28.1and1.com2015-08-15 → 2016-03-01 · 4 obs

● 2015-08-15 01:36:06
● 2016-03-01 23:19:58
○ 2016-08-11 03:58:48
○ 2026-04-13 17:49:12

○MXmailgw.ns36.de2016-08-11 → 2016-08-11 · 4 obs

○ 2016-03-01 23:19:58
● 2016-08-11 03:58:48
○ 2020-01-09 02:17:22
○ 2026-04-13 17:49:12

○MXmx00.1and1.com2015-08-15 → 2016-03-01 · 4 obs

● 2015-08-15 01:36:06
● 2016-03-01 23:19:58
○ 2016-08-11 03:58:48
○ 2026-04-13 17:49:12

○MXmx01.1and1.com2015-08-15 → 2016-03-01 · 4 obs

● 2015-08-15 01:36:06
● 2016-03-01 23:19:58
○ 2016-08-11 03:58:48
○ 2026-04-13 17:49:12

●MXmx01.mail.icloud.com2026-04-03 → 2026-04-13 · 3 obs

○ 2020-01-09 02:17:22
● 2026-04-03 00:17:46
● 2026-04-13 17:49:12

●MXmx02.mail.icloud.com2026-04-03 → 2026-04-13 · 3 obs

○ 2020-01-09 02:17:22
● 2026-04-03 00:17:46
● 2026-04-13 17:49:12

●A104.21.57.2422026-04-03 → 2026-04-13 · 3 obs

○ 2020-01-09 02:17:22
● 2026-04-03 00:17:46
● 2026-04-13 17:49:12

●A172.67.194.632026-04-03 → 2026-04-13 · 3 obs

○ 2020-01-09 02:17:22
● 2026-04-03 00:17:46
● 2026-04-13 17:49:12

●A2606:4700:3030::6815:39f22026-04-03 → 2026-04-13 · 3 obs

○ 2020-01-09 02:17:22
● 2026-04-03 00:17:46
● 2026-04-13 17:49:12

●A2606:4700:3032::ac43:c23f2026-04-03 → 2026-04-13 · 3 obs

○ 2020-01-09 02:17:22
● 2026-04-03 00:17:46
● 2026-04-13 17:49:12

○A72.52.4.902016-08-11 → 2016-08-11 · 4 obs

○ 2016-03-01 23:19:58
● 2016-08-11 03:58:48
○ 2020-01-09 02:17:22
○ 2026-04-13 17:49:12

○A74.208.41.2302015-08-15 → 2016-03-01 · 4 obs

● 2015-08-15 01:36:06
● 2016-03-01 23:19:58
○ 2016-08-11 03:58:48
○ 2026-04-13 17:49:12

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
zerocalendar.com	dana.ns.cloudflare.com, coleman.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.192.105

NS records: dana.ns.cloudflare.com, coleman.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for zerocalendar.com (unsigned zone)

⏱️ Timing

Total: 153ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.57.242, 172.67.194.63`
AAAA	2	`2606:4700:3030::6815:39f2, 2606:4700:3032::ac43:c23f`
NS	2	`coleman.ns.cloudflare.com, dana.ns.cloudflare.com`
MX	2	`mx01.mail.icloud.com (pri: 10), mx02.mail.icloud.com (pri: 10)`
TXT	3	`apple-domain=MyeNsS7PG4Mybu2N, google-site-verification=NKxNFT9nsQ4zpA4...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`coleman.ns.cloudflare.com dns.cloudflare`

📌 Glue Records Collected

Total: 12

Out-of-bailiwick: 12 (dana.ns.cloudflare.com, dana.ns.cloudflare.com, dana.ns.cloudflare.com...)

Analysis

IP Addresses

zerocalendar.com points to four IP numbers: 2606:4700:3030::6815:39f2, 2606:4700:3032::ac43:c23f, 104.21.57.242 and 172.67.194.63.

Other host names including www.apotheken-couponing.at, farmaci-violeta.com, actc.be, pashmina.at and www.gastromir.com share IP numbers with zerocalendar.com.

Name Servers

zerocalendar.com's delegation uses two name servers, coleman.ns.cloudflare.com and dana.ns.cloudflare.com.

zerocalendar.com uses the same name server setup as afaqedu.com and shenzhendc.com and elitebabynames.com.

zerocalendar.com at least partially shares name servers with other domains, including porpaxia.com, rockhavenband.com, creativekindle.com, stefan-ruf.net and linkaroo.me.

these name servers are commonly used with fish.ns.cloudflare.com, dave.ns.cloudflare.com, veronica.ns.cloudflare.com and jose.ns.cloudflare.com.

Host names with six IP numbers:

coleman.ns.cloudflare.com points to: 2606:4700:58::a29f:2c40, 2803:f800:50::6ca2:c340, 2a06:98c1:50::ac40:2340, 108.162.195.64, 162.159.44.64 and 172.64.35.64.

dana.ns.cloudflare.com points to: 2606:4700:50::adf5:3a69, 2803:f800:50::6ca2:c069, 2a06:98c1:50::ac40:2069, 108.162.192.105, 172.64.32.105 and 173.245.58.105.

Mail Servers

zerocalendar.com is handled by two mail servers: mx01.mail.icloud.com and mx02.mail.icloud.com.

zerocalendar.com shares its mail server setup with other domains, including hycken.com, mvg.us, pocketcircuit.com, khush.com and iantonov.me.

zerocalendar.com shares some mail servers with other domains, at least partially, for instance fabianborn.net.

Host names with six IP numbers:

The host name mx01.mail.icloud.com points to: 17.42.251.62, 17.56.9.31, 17.57.152.5, 17.57.154.33, 17.57.155.25 and 17.57.156.30.

The host name mx02.mail.icloud.com points to: 17.42.251.62, 17.56.9.31, 17.57.152.5, 17.57.154.33, 17.57.155.25 and 17.57.156.30.

Host names that point to 17.42.251.62: mx01.mail.icloud.com and mx02.mail.icloud.com.

Host names that point to 17.56.9.31: mx01.mail.icloud.com and mx02.mail.icloud.com.

Host names that point to 17.57.152.5: mx01.mail.icloud.com and mx02.mail.icloud.com.

Host names that point to 17.57.154.33: mx01.mail.icloud.com and mx02.mail.icloud.com.

Host names that point to 17.57.155.25: mx01.mail.icloud.com and mx02.mail.icloud.com.

Host names that point to 17.57.156.30: mx01.mail.icloud.com and mx02.mail.icloud.com.

zerocalendar.com - robtex.com