`alexandermarek.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3033::ac43:cd54^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::6815:f2c^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.15.44^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.205.84^{🇺🇸 Cloudflare172.67.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`betty.ns.cloudflare.com` ⭐
		A	2606:4700:50::adf5:3a4b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`betty.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c04b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`betty.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:204b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`betty.ns.cloudflare.com`
		A	108.162.192.75^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`betty.ns.cloudflare.com`
		A	172.64.32.75^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`betty.ns.cloudflare.com`
		A	173.245.58.75^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`betty.ns.cloudflare.com`
NS	`sean.ns.cloudflare.com`
		A	2606:4700:58::adf5:3be7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sean.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1e7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`sean.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21e7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`sean.ns.cloudflare.com`
		A	108.162.193.231^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sean.ns.cloudflare.com`
		A	172.64.33.231^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sean.ns.cloudflare.com`
		A	173.245.59.231^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`sean.ns.cloudflare.com`
MX	`alexandermarek-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c936::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-cy1pr05cu00400.inbound.protection.outlook.com`
		A	2a01:111:f403:c946::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-ch0pr04cu00603.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::2^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-mn2pr02cu00202.inbound.protection.outlook.com`
		A	2a01:111:f403:f90f::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sa9pr04cu00100.inbound.protection.outlook.com`
		A	52.101.9.14^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr03cu00206.inbound.protection.outlook.com`
		A	52.101.9.24^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl2pr02cu00400.inbound.protection.outlook.com`
		A	52.101.10.10^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bn8pr05cu00102.inbound.protection.outlook.com`
		A	52.101.41.58^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj0pr02cu00102.inbound.protection.outlook.com`
TXT	`MS=ms27556987`
TXT	`v=spf1 include:spf.protection.outlook.com -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.15.44, 172.67.205.84
		IPv6	2606:4700:3033::ac43:cd54, 2606:4700:3037::6815:f2c
SOA	`betty.ns.cloudflare.com`dns@cloudflare.com serial=2398213368

`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=1774566047

Same first word

alexandermarek.com

DNS History

19 records (7 active, 12 former)

●NSbetty.ns.cloudflare.com2026-03-10 → 2026-03-26 · 3 obs

○ 2020-01-25 07:17:44
● 2026-03-10 18:19:46
● 2026-03-26 23:06:08

○NSdns057.b.register.com2015-06-09 → 2020-01-25 · 4 obs

● 2015-06-09 23:46:44
● 2020-01-25 07:17:44
○ 2026-03-10 18:19:46
○ 2026-03-26 23:06:08

○NSdns062.a.register.com2015-06-09 → 2020-01-25 · 4 obs

● 2015-06-09 23:46:44
● 2020-01-25 07:17:44
○ 2026-03-10 18:19:46
○ 2026-03-26 23:06:08

○NSdns230.c.register.com2015-06-09 → 2020-01-25 · 4 obs

● 2015-06-09 23:46:44
● 2020-01-25 07:17:44
○ 2026-03-10 18:19:46
○ 2026-03-26 23:06:08

○NSdns249.d.register.com2015-06-09 → 2020-01-25 · 4 obs

● 2015-06-09 23:46:44
● 2020-01-25 07:17:44
○ 2026-03-10 18:19:46
○ 2026-03-26 23:06:08

○NSns1.systemdns.com2026-03-10 → 2026-03-26 · 2 obs

○ 2026-03-10 18:19:46
○ 2026-03-26 23:06:08

○NSns2.systemdns.com2026-03-10 → 2026-03-26 · 2 obs

○ 2026-03-10 18:19:46
○ 2026-03-26 23:06:08

○NSns3.systemdns.com2026-03-10 → 2026-03-26 · 2 obs

○ 2026-03-10 18:19:46
○ 2026-03-26 23:06:08

●NSsean.ns.cloudflare.com2026-03-10 → 2026-03-26 · 3 obs

○ 2020-01-25 07:17:44
● 2026-03-10 18:19:46
● 2026-03-26 23:06:08

●MXalexandermarek-com.mail.protection.outlook.com2026-03-10 → 2026-03-26 · 3 obs

○ 2020-01-25 07:17:44
● 2026-03-10 18:19:46
● 2026-03-26 23:06:08

○MXalt1.aspmx.l.google.com2015-06-09 → 2020-01-25 · 4 obs

● 2015-06-09 23:46:44
● 2020-01-25 07:17:44
○ 2026-03-10 18:19:46
○ 2026-03-26 23:06:08

○MXaspmx.l.google.com2015-06-09 → 2020-01-25 · 4 obs

● 2015-06-09 23:46:44
● 2020-01-25 07:17:44
○ 2026-03-10 18:19:46
○ 2026-03-26 23:06:08

○A104.209.178.1912016-09-11 → 2020-01-25 · 5 obs

○ 2016-04-02 01:03:48
● 2016-09-11 18:41:56
● 2020-01-25 07:17:44
○ 2026-03-10 18:19:46
○ 2026-03-26 23:06:08

●A104.21.15.442026-03-10 → 2026-03-26 · 3 obs

○ 2020-01-25 07:17:44
● 2026-03-10 18:19:46
● 2026-03-26 23:06:08

○A129.33.111.112015-06-09 → 2016-04-02 · 4 obs

● 2015-06-09 23:46:44
● 2016-04-02 01:03:48
○ 2016-09-11 18:41:56
○ 2026-03-26 23:06:08

●A172.67.205.842026-03-10 → 2026-03-26 · 3 obs

○ 2020-01-25 07:17:44
● 2026-03-10 18:19:46
● 2026-03-26 23:06:08

○A173.219.72.1982026-03-10 → 2026-03-26 · 2 obs

○ 2026-03-10 18:19:46
○ 2026-03-26 23:06:08

●A2606:4700:3033::ac43:cd542026-03-10 → 2026-03-26 · 3 obs

○ 2020-01-25 07:17:44
● 2026-03-10 18:19:46
● 2026-03-26 23:06:08

●A2606:4700:3037::6815:f2c2026-03-10 → 2026-03-26 · 3 obs

○ 2020-01-25 07:17:44
● 2026-03-10 18:19:46
● 2026-03-26 23:06:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	i.gtld-servers.net, k.gtld-servers.net, e.gtld-servers.net, g.gtld-servers.net...	-
alexandermarek.com	sean.ns.cloudflare.com, betty.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.231

NS records: sean.ns.cloudflare.com, betty.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for alexandermarek.com (unsigned zone)

⏱️ Timing

Total: 345ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.205.84, 104.21.15.44`
AAAA	2	`2606:4700:3037::6815:f2c, 2606:4700:3033::ac43:cd54`
NS	2	`betty.ns.cloudflare.com, sean.ns.cloudflare.com`
MX	1	`alexandermarek-com.mail.protection.outlo`
TXT	2	`MS=ms27556987, v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`betty.ns.cloudflare.com dns.cloudflare.c`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

alexandermarek.com resolves to four IP numbers: 2606:4700:3033::ac43:cd54, 2606:4700:3037::6815:f2c, 104.21.15.44 and 172.67.205.84.

other host names for instance srvinfotech.com, gtatrade.com, www.oldreptheatre.org.uk, avelineladyshave.com and formaass.sleepbut.in.net share IP numbers with alexandermarek.com.

Name Servers

alexandermarek.com is delegated to two name servers: betty.ns.cloudflare.com and sean.ns.cloudflare.com.

alexandermarek.com shares the same name server setup as other domains, for example oauth-telegram.org, carrentalingoa.in, loucosporviagem.com, dimensionservers.com and ecotileflooring.com.

alexandermarek.com at least partially shares name servers with other domains, for instance 3344jl.com, huc33.co, dhome.gr, splashark.com and funbeat.net.

These name servers are often used with piotr.ns.cloudflare.com and luciana.ns.cloudflare.com.

Host names with six IP numbers:

betty.ns.cloudflare.com points to: 2606:4700:50::adf5:3a4b, 2803:f800:50::6ca2:c04b, 2a06:98c1:50::ac40:204b, 108.162.192.75, 172.64.32.75 and 173.245.58.75; sean.ns.cloudflare.com points to: 2606:4700:58::adf5:3be7, 2803:f800:50::6ca2:c1e7, 2a06:98c1:50::ac40:21e7, 108.162.193.231, 172.64.33.231 and 173.245.59.231.

Mail Servers

alexandermarek.com is handled by a single mail server, alexandermarek-com.mail.protection.outlook.com.

Host name alexandermarek-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:c936::, 2a01:111:f403:c946::3, 2a01:111:f403:f902::2, 2a01:111:f403:f90f::, 52.101.9.14, 52.101.9.24, 52.101.10.10 and 52.101.41.58.

alexandermarek.com - robtex.com