`learn2code.cz`

DNSSEC	⚠️ Not signed
A	2606:4700:3036::6815:1df2^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3036::ac43:9601^{🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.29.242^{Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.150.1^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`lewis.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2c9f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lewis.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c39f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lewis.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:239f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lewis.ns.cloudflare.com`
		A	108.162.195.159^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lewis.ns.cloudflare.com`
		A	162.159.44.159^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lewis.ns.cloudflare.com`
		A	172.64.35.159^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lewis.ns.cloudflare.com`
NS	`lina.ns.cloudflare.com`
		A	2606:4700:50::adf5:3abb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lina.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0bb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`lina.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20bb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`lina.ns.cloudflare.com`
		A	108.162.192.187^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lina.ns.cloudflare.com`
		A	172.64.32.187^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lina.ns.cloudflare.com`
		A	173.245.58.187^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`lina.ns.cloudflare.com`
MX	`mx1.websupport.sk` ⭐
		A	37.9.169.110^{🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.168.0/21 Websupport, s.r.o.}
			PTR	`mail-proxymxphy-8.websupport.sk`
MX	`mx2.websupport.sk`⁽¹⁰⁰⁾
		A	37.9.169.112^{🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.168.0/21 Websupport, s.r.o.}
			PTR	`mail-proxymxphy-6.websupport.sk`
TXT	`facebook-domain-verification=e2awutx2ytzwfxmh42yd3qfun4y855`
TXT	`spf2.0/pra a mx include:_sid.websupport.sk ?all`
TXT	`v=spf1 a mx include:_spf.websupport.sk ?all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.29.242, 172.67.150.1
		IPv6 hints	2606:4700:3036::6815:1df2, 2606:4700:3036::ac43:9601
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=214, name=cloudflare-ech.com
SOA	`lewis.ns.cloudflare.com`dns@cloudflare.com serial=2402065370

`cz`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.ns.nic.cz` ⭐
	NS	`b.ns.nic.cz`
	NS	`c.ns.nic.cz`
	NS	`d.ns.nic.cz`
	SOA	`a.ns.nic.cz`hostmaster@nic.cz serial=1778379435

Subdomains

www.learn2code.cz

Same first word

learn2code.it

learn2code.de

learn2code.asia

learn2code.dev

learn2code.cz

learn2code.net

learn2code.com

learn2code.org

learn2code.live

learn2code.sk

learn2code.eu

Similar names

code2learn.com

code2learn.it

DNS History

18 records (8 active, 10 former)

●NSlewis.ns.cloudflare.com2026-03-01 → 2026-05-10 · 3 obs

○ 2017-03-21 05:33:30
● 2026-03-01 05:20:04
● 2026-05-10 04:25:58

●NSlina.ns.cloudflare.com2026-03-01 → 2026-05-10 · 3 obs

○ 2017-03-21 05:33:30
● 2026-03-01 05:20:04
● 2026-05-10 04:25:58

○NSns1.websupport.sk2015-07-03 → 2017-03-21 · 4 obs

● 2015-07-03 06:44:50
● 2017-03-21 05:33:30
○ 2026-03-01 05:20:04
○ 2026-05-10 04:25:58

○NSns2.websupport.sk2015-07-03 → 2017-03-21 · 4 obs

● 2015-07-03 06:44:50
● 2017-03-21 05:33:30
○ 2026-03-01 05:20:04
○ 2026-05-10 04:25:58

○NSns3.websupport.sk2015-07-03 → 2017-03-21 · 4 obs

● 2015-07-03 06:44:50
● 2017-03-21 05:33:30
○ 2026-03-01 05:20:04
○ 2026-05-10 04:25:58

○MXmailin1.learn2code.cz2015-07-03 → 2017-03-21 · 4 obs

● 2015-07-03 06:44:50
● 2017-03-21 05:33:30
○ 2026-03-01 05:20:04
○ 2026-05-10 04:25:58

○MXmailin2.learn2code.cz2015-07-03 → 2017-03-21 · 4 obs

● 2015-07-03 06:44:50
● 2017-03-21 05:33:30
○ 2026-03-01 05:20:04
○ 2026-05-10 04:25:58

●MXmx1.websupport.sk2026-03-01 → 2026-05-10 · 3 obs

○ 2017-03-21 05:33:30
● 2026-03-01 05:20:04
● 2026-05-10 04:25:58

●MXmx2.websupport.sk2026-03-01 → 2026-05-10 · 3 obs

○ 2017-03-21 05:33:30
● 2026-03-01 05:20:04
● 2026-05-10 04:25:58

●A104.21.29.2422026-03-01 → 2026-05-10 · 11 obs

○ 2017-03-21 05:33:30
● 2026-03-01 05:20:04
○ 2026-03-03 00:36:18
● 2026-03-05 11:55:18
● 2026-03-06 16:54:22
○ 2026-03-06 17:45:26
● 2026-03-25 06:06:32
● 2026-04-11 11:16:56
○ 2026-04-12 14:25:30
● 2026-04-13 12:19:16
● 2026-05-10 04:25:58

○A172.64.80.12026-03-03 → 2026-03-06 · 7 obs

○ 2026-03-01 05:20:04
● 2026-03-03 00:36:18
○ 2026-03-05 11:55:18
○ 2026-03-06 16:54:22
● 2026-03-06 17:45:26
○ 2026-03-25 06:06:32
○ 2026-05-10 04:25:58

●A172.67.150.12026-03-01 → 2026-05-10 · 11 obs

○A174.129.25.1702015-07-03 → 2017-03-21 · 4 obs

● 2015-07-03 06:44:50
● 2017-03-21 05:33:30
○ 2026-03-01 05:20:04
○ 2026-05-10 04:25:58

○A188.114.96.02026-04-12 → 2026-04-12 · 4 obs

○ 2026-04-11 11:16:56
● 2026-04-12 14:25:30
○ 2026-04-13 12:19:16
○ 2026-05-10 04:25:58

○A188.114.97.02026-04-12 → 2026-04-12 · 4 obs

○ 2026-04-11 11:16:56
● 2026-04-12 14:25:30
○ 2026-04-13 12:19:16
○ 2026-05-10 04:25:58

○A2606:4700:130:436c:6f75:6466:6c61:72652026-03-06 → 2026-03-06 · 4 obs

○ 2026-03-06 16:54:22
● 2026-03-06 17:45:26
○ 2026-03-25 06:06:32
○ 2026-05-10 04:25:58

●A2606:4700:3036::6815:1df22026-03-01 → 2026-05-10 · 6 obs

○ 2017-03-21 05:33:30
● 2026-03-01 05:20:04
● 2026-03-06 16:54:22
○ 2026-03-06 17:45:26
● 2026-03-25 06:06:32
● 2026-05-10 04:25:58

●A2606:4700:3036::ac43:96012026-03-01 → 2026-05-10 · 6 obs

○ 2017-03-21 05:33:30
● 2026-03-01 05:20:04
● 2026-03-06 16:54:22
○ 2026-03-06 17:45:26
● 2026-03-25 06:06:32
● 2026-05-10 04:25:58

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cz	a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz	-
learn2code.cz	lina.ns.cloudflare.com, lewis.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.187

NS records: lina.ns.cloudflare.com, lewis.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for learn2code.cz (unsigned zone)

⏱️ Timing

Total: 1817ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.29.242, 172.67.150.1`
AAAA	2	`2606:4700:3036::6815:1df2, 2606:4700:3036::ac43:9601`
NS	2	`lewis.ns.cloudflare.com, lina.ns.cloudflare.com`
MX	2	`mx1.websupport.sk (pri: 10), mx2.websupport.sk (pri: 100)`
TXT	3	`facebook-domain-verification=e2awutx2ytz, spf2.0/pra a mx include:_sid.websupport....`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`lewis.ns.cloudflare.com dns.cloudflare.c`

Analysis

Hierarchy

learn2code.cz is the parent of www.learn2code.cz.

IP Addresses

Four IP numbers are pointed to by learn2code.cz: 2606:4700:3036::6815:1df2, 2606:4700:3036::ac43:9601, 104.21.29.242 and 172.67.150.1.

other host names including mdyhds.net, medicthings.com, maliturkiyen.cyou, murbox.com and mhtuix4.doedap252.shop share IP numbers with learn2code.cz.

Name Servers

learn2code.cz is delegated to two name servers lewis.ns.cloudflare.com and lina.ns.cloudflare.com.

learn2code.cz shares the same name server setup as other domains, for instance archinvoice.com, cheongyi.com, upskirtzone.com, ucreativa.com and observedpath.com.

learn2code.cz at least partially shares name servers with other domains, for instance dailybots.com, (0x706f726e)pictures.pro, open-circle.org, excellence.asia and akydelobivys.tk.

these name servers are commonly used alongside sevki.ns.cloudflare.com.

Host names with six IP numbers:

Host name lewis.ns.cloudflare.com points to: 2606:4700:58::a29f:2c9f, 2803:f800:50::6ca2:c39f, 2a06:98c1:50::ac40:239f, 108.162.195.159, 162.159.44.159 and 172.64.35.159.

Host name lina.ns.cloudflare.com points to: 2606:4700:50::adf5:3abb, 2803:f800:50::6ca2:c0bb, 2a06:98c1:50::ac40:20bb, 108.162.192.187, 172.64.32.187 and 173.245.58.187.

Mail Servers

Two mail servers handle learn2code.cz: mx1.websupport.sk and mx2.websupport.sk.

learn2code.cz shares the same mail server setup as other domains, for instance guashatherapy.sk, internationaldayofradiology.com, bbc5.sk, cepreka.sk and pet24.sk.

learn2code.cz shares some mail servers with other domains, at least partially, for instance legaltrans.sk, inlingua-nitra.sk, eurovkm.sk, crener.com and interakt.sk.

Host names with one IP number:

mx1.websupport.sk points to 37.9.169.110

mx2.websupport.sk points to 37.9.169.112

learn2code.cz - robtex.com

learn2code.cz

cz

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

Hierarchy

IP Addresses

Name Servers

Mail Servers

`learn2code.cz`

`cz`