`codelearn.cat`

DNSSEC	⚠️ Not signed
A	2a01:4f8:a0:11e8::2^{🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK}
		PTR	`codelearn.cat`
A	88.198.41.199^{🇩🇪 Hetzner88.198.0.0/16 HETZNER-RZ-NBG-BLK4}
NS	`george.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3ba7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`george.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c1a7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`george.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:21a7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`george.ns.cloudflare.com`
		A	108.162.193.167^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`george.ns.cloudflare.com`
		A	172.64.33.167^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`george.ns.cloudflare.com`
		A	173.245.59.167^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`george.ns.cloudflare.com`
NS	`olga.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a89^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`olga.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c089^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`olga.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2089^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`olga.ns.cloudflare.com`
		A	108.162.192.137^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`olga.ns.cloudflare.com`
		A	172.64.32.137^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`olga.ns.cloudflare.com`
		A	173.245.58.137^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`olga.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c1b::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`wv-in-f26.1e100.net`
		A	173.194.45.26^{🇺🇸 Google173.194.0.0/16}
			PTR	`yuiadum-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
MX	`aspmx2.googlemail.com`⁽¹⁰⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.27^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f27.1e100.net`
MX	`aspmx3.googlemail.com`⁽¹⁰⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
TXT	`google-site-verification=Jw1zL9fPlkjnCxWgul5QMJOBB-YscdyVTiXarCI7-oo`
TXT	`v=spf1 mx ip4:188.40.142.211 ip4:5.9.118.77 ip4:88.198.41.199 ip4:46.4.13.211...`
SOA	`george.ns.cloudflare.com`dns@cloudflare.com serial=2406226050

`cat`

	DNSSEC	🔒 Signed (DS record present)
	NS	`anyc1.irondns.net` ⭐
	NS	`cat.ns.nic.es`
	NS	`cat.pch.net`
	NS	`nsc.nic.de`
	NS	`switch.nic.cat`
	SOA	`anyc1.irondns.net`dnsmaster@corenic.org serial=2607041401

📈 Tranco rank: #770,701

PTR for

199.41.198.88.in-addr.arpa

2.0.0.0.0.0.0.0.0.0.0.0.0.0.0.0.8.e.1.1.0.a.0.0.8.f.4.0.1.0.a.2.ip6.arpa

Subdomains

fun.codelearn.cat

www.codelearn.cat

mail.codelearn.cat

sandor.codelearn.cat

Same first word

codelearn.cat

codelearn.fr

codelearn.com

codelearn.online

codelearn.org

codelearn.ad

codelearn.es

codelearn.io

codelearn.me

Similar names

DNS History

16 records (9 active, 7 former)

●NSgeorge.ns.cloudflare.com2026-03-09 → 2026-07-04 · 3 obs

○ 2016-07-15 03:18:04
● 2026-03-09 08:02:16
● 2026-07-04 14:05:46

○NSns1.rescat.net2015-08-20 → 2016-07-15 · 4 obs

● 2015-08-20 16:05:52
● 2016-07-15 03:18:04
○ 2026-03-09 08:02:16
○ 2026-07-04 14:05:46

○NSns2.rescat.net2015-08-20 → 2016-07-15 · 4 obs

● 2015-08-20 16:05:52
● 2016-07-15 03:18:04
○ 2026-03-09 08:02:16
○ 2026-07-04 14:05:46

●NSolga.ns.cloudflare.com2026-03-09 → 2026-07-04 · 3 obs

○ 2016-07-15 03:18:04
● 2026-03-09 08:02:16
● 2026-07-04 14:05:46

●MXalt1.aspmx.l.google.com2016-03-13 → 2026-07-04 · 3 obs

○ 2015-12-14 10:47:36
● 2016-03-13 06:18:36
● 2026-07-04 14:05:46

●MXalt2.aspmx.l.google.com2016-03-13 → 2026-07-04 · 3 obs

○ 2015-12-14 10:47:36
● 2016-03-13 06:18:36
● 2026-07-04 14:05:46

●MXaspmx.l.google.com2016-03-13 → 2026-07-04 · 3 obs

○ 2015-12-14 10:47:36
● 2016-03-13 06:18:36
● 2026-07-04 14:05:46

●MXaspmx2.googlemail.com2016-03-13 → 2026-07-04 · 3 obs

○ 2015-12-14 10:47:36
● 2016-03-13 06:18:36
● 2026-07-04 14:05:46

●MXaspmx3.googlemail.com2016-03-13 → 2026-07-04 · 3 obs

○ 2015-12-14 10:47:36
● 2016-03-13 06:18:36
● 2026-07-04 14:05:46

○MXmail.codelearn.cat2015-08-20 → 2015-08-20 · 3 obs

● 2015-08-20 16:05:52
○ 2015-12-14 10:47:36
○ 2026-07-04 14:05:46

○MXmxa.mailgun.org2015-12-14 → 2015-12-14 · 4 obs

○ 2015-08-20 16:05:52
● 2015-12-14 10:47:36
○ 2016-03-13 06:18:36
○ 2026-07-04 14:05:46

○MXmxb.mailgun.org2015-12-14 → 2015-12-14 · 4 obs

○ 2015-08-20 16:05:52
● 2015-12-14 10:47:36
○ 2016-03-13 06:18:36
○ 2026-07-04 14:05:46

○A188.40.142.2112015-08-20 → 2016-07-15 · 4 obs

● 2015-08-20 16:05:52
● 2016-07-15 03:18:04
○ 2026-03-09 08:02:16
○ 2026-07-04 14:05:46

○A2a01:4f8:101:1206::22016-03-13 → 2016-07-15 · 5 obs

○ 2015-08-20 16:05:52
● 2016-03-13 06:18:36
● 2016-07-15 03:18:04
○ 2026-03-09 08:02:16
○ 2026-07-04 14:05:46

●A2a01:4f8:a0:11e8::22026-03-09 → 2026-07-04 · 3 obs

○ 2016-07-15 03:18:04
● 2026-03-09 08:02:16
● 2026-07-04 14:05:46

●A88.198.41.1992026-03-09 → 2026-07-04 · 3 obs

○ 2016-07-15 03:18:04
● 2026-03-09 08:02:16
● 2026-07-04 14:05:46

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cat	cat.ns.nic.es, cat.pch.net, nsc.nic.de, anyc1.irondns.net...	10 records
codelearn.cat	olga.ns.cloudflare.com, george.ns.cloudflare.com	-

✅ Authoritative Response

Server:173.245.58.137

NS records: olga.ns.cloudflare.com, george.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codelearn.cat (unsigned zone)

⏱️ Timing

Total: 688ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`88.198.41.199`
AAAA	1	`2a01:4f8:a0:11e8::2`
NS	2	`george.ns.cloudflare.com, olga.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)...`
TXT	2	`google-site-verification=Jw1zL9fPlkjnCxW, v=spf1 mx ip4:188.40.142.211 ip4:5.9.118`
SOA	1	`george.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 10

In-bailiwick: 2 (switch.nic.cat, switch.nic.cat)

Out-of-bailiwick: 8 (cat.ns.nic.es, cat.pch.net, nsc.nic.de...)

Analysis

Hierarchy

fun.codelearn.cat, www.codelearn.cat, mail.codelearn.cat and sandor.codelearn.cat are all subdomains of codelearn.cat.

IP Addresses

codelearn.cat points to the IP addresses 88.198.41.199 and 2a01:4f8:a0:11e8::2

codelearn.fr, codelearn.com, codelearn.ad and codelearn.es are examples of host names that share IP numbers with codelearn.cat.

Name Servers

Two name servers handle the delegation for codelearn.cat: george.ns.cloudflare.com and olga.ns.cloudflare.com.

codelearn.cat shares its name server setup with other domains, including 2pt0.org, humdinger.co, codelearn.ad and two others.

The name servers of codelearn.cat overlap at least partially with those of other domains — among them instantebookstores.com, i-webbiz.com, undressaitools.net and two more.

These name servers commonly appear alongside the name servers annabel.ns.cloudflare.com and carl.ns.cloudflare.com.

Host names with 6 IP numbers:

george.ns.cloudflare.com resolves to 108.162.193.167, 172.64.33.167 and 173.245.59.167 among others, with 3 other IP addresses in total.

olga.ns.cloudflare.com resolves to 108.162.192.137, 172.64.32.137 and 173.245.58.137 among others, with 3 other IP addresses in total.

Mail Servers

codelearn.cat has five mail servers, which are aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.

codelearn.cat shares mail servers — at least in part — with other domains, including cesbron.com, bossbabes.org, skyaviatex.com and two others.

These mail servers are frequently used alongside mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 other.

Host names with two IP numbers:

aspmx2.googlemail.com resolves to two addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1b.

aspmx3.googlemail.com resolves to two addresses: 172.253.116.27 and 2a00:1450:400b:c02::1a.

aspmx.l.google.com resolves to two addresses: 173.194.45.26 and 2607:f8b0:4004:c1b::1a.

alt1.aspmx.l.google.com resolves to two addresses: 108.177.123.27 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com resolves to two addresses: 172.253.116.26 and 2a00:1450:400b:c02::1a.

aspmx2.googlemail.com along with alt1.aspmx.l.google.com each resolve to 2800:3f0:4003:c0f::1b IP addresses.

aspmx2.googlemail.com along with alt1.aspmx.l.google.com each resolve to 108.177.123.27 IP addresses.

aspmx3.googlemail.com along with alt2.aspmx.l.google.com each resolve to 2a00:1450:400b:c02::1a IP addresses.