codeschool.com - dns.ninja

`codeschool.com`

DNSSEC	⚠️ Not signed
A	2606:4700::6811:a07a^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6811:b07a^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6811:c07a^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:affb^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:bffb^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.17.160.122^{Cloudflare104.17.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.17.176.122^{Cloudflare104.17.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.17.192.122^{Cloudflare104.17.192.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.175.251^{Cloudflare104.18.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.191.251^{Cloudflare104.18.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`boyd.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4b^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14b^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`boyd.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214b^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`boyd.ns.cloudflare.com`
		A	108.162.193.75^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
		A	172.64.33.75^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
		A	173.245.59.75^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`boyd.ns.cloudflare.com`
NS	`dawn.ns.cloudflare.com`
		A	2606:4700:50::adf5:3a6a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dawn.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c06a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dawn.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:206a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dawn.ns.cloudflare.com`
		A	108.162.192.106^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dawn.ns.cloudflare.com`
		A	172.64.32.106^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dawn.ns.cloudflare.com`
		A	173.245.58.106^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dawn.ns.cloudflare.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c0b::1b^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bj-in-f27.1e100.net`
		A	142.251.163.27^{🇺🇸 Google142.251.163.0/24}
			PTR	`wv-in-f27.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c0f::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	108.177.123.26^{🇺🇸 Google108.177.123.0/24}
			PTR	`lcscld-in-f26.1e100.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	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.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	172.253.116.26^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f26.1e100.net`
TXT	`google-site-verification=9AMkwNsGjneq0l3xzmQDKGvh6n_g_gWhsPpJi3J6k94`
TXT	`google-site-verification=A8hsKb8wgGZdT5bHw7GCdbKtt2pJQrvCaxdNn7qaB8o`
TXT	`google-site-verification=Ewrftu0btviygspT45KgbQMvqrAeL14FKL2YpP3FS00`
TXT	`google-site-verification=ITLjrxkF7VnMoQTaJivL55gzJlzhr6vUH1qbENNbY-c`
TXT	`google-site-verification=e0HK9V6ZjLnjyNHXJt_jlB7NOmbIVWEOEY5zxx98tx0`
TXT	`google-site-verification=w26jKmmlbPc5XxeMzAz91n9VGGwKHrAwlEpMeQb5V54`
TXT	`status-page-domain-verification=drcf3hfszg53`
TXT	`v=DMARC1; p=reject; rua=mailto:dmarc@pluralsight.com; ruf=mailto:dmarc@plural...`
TXT	`v=spf1 a mx include:_spf.google.com include:spf.mandrillapp.com include:serve...`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.17.160.122, 104.17.176.122, 104.17.192.122, 104.18.175.251, 104.18.191.251
		IPv6 hints	2606:4700::6811:a07a, 2606:4700::6811:b07a, 2606:4700::6811:c07a, 2606:4700::6812:affb, 2606:4700::6812:bffb
SOA	`boyd.ns.cloudflare.com`dns@cloudflare.com serial=2403947692

`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=1782861581

rank #24462 globally
rank #12075 in the tld
WOT: SAFE (94/100)
📈 Tranco rank: #101,557

Subdomains

campus.codeschool.com

internal.codeschool.com

www.codeschool.com

trygithub.codeschool.com

support.codeschool.com

dart.codeschool.com

javascript-roadtrip-part3.codeschool.com

discuss.codeschool.com

javascript-roadtrip.codeschool.com

projector.codeschool.com

tryjquery.codeschool.com

fivejs.codeschool.com

frontendfive.codeschool.com

iosbytes.codeschool.com

Same first word

codeschool.org

codeschool.vn

codeschool.com.tw

codeschool.com.au

codeschool.ro

codeschool.co.uk

codeschool.co

codeschool.nl

codeschool.fi

codeschool.io

codeschool.online

codeschool.net

codeschool.us

codeschool.de

codeschool.com

codeschool.app

codeschool.lk

codeschool.in

Similar names

schoolcode.com

choloscode.com

decoschool.com

schoolcode.org

coedschool.com

DNS History

33 records (17 active, 16 former)

●NSboyd.ns.cloudflare.com2015-06-27 → 2026-06-30 · 2 obs

● 2015-06-27 22:58:44
● 2026-06-30 23:37:08

●NSdawn.ns.cloudflare.com2015-06-27 → 2026-06-30 · 2 obs

● 2015-06-27 22:58:44
● 2026-06-30 23:37:08

●MXalt1.aspmx.l.google.com2015-06-27 → 2026-06-30 · 2 obs

● 2015-06-27 22:58:44
● 2026-06-30 23:37:08

●MXalt2.aspmx.l.google.com2015-06-27 → 2026-06-30 · 2 obs

● 2015-06-27 22:58:44
● 2026-06-30 23:37:08

●MXaspmx.l.google.com2015-06-27 → 2026-06-30 · 2 obs

● 2015-06-27 22:58:44
● 2026-06-30 23:37:08

●MXaspmx2.googlemail.com2015-06-27 → 2026-06-30 · 2 obs

● 2015-06-27 22:58:44
● 2026-06-30 23:37:08

●MXaspmx3.googlemail.com2015-06-27 → 2026-06-30 · 2 obs

● 2015-06-27 22:58:44
● 2026-06-30 23:37:08

○MXaspmx4.googlemail.com2015-06-27 → 2017-10-05 · 4 obs

● 2015-06-27 22:58:44
● 2017-10-05 16:30:36
○ 2021-04-02 10:48:54
○ 2026-06-30 23:37:08

○MXaspmx5.googlemail.com2015-06-27 → 2017-10-05 · 4 obs

● 2015-06-27 22:58:44
● 2017-10-05 16:30:36
○ 2021-04-02 10:48:54
○ 2026-06-30 23:37:08

○A104.17.12.852021-04-02 → 2021-10-04 · 5 obs

○ 2017-10-05 16:30:36
● 2021-04-02 10:48:54
● 2021-10-04 23:48:50
○ 2026-02-16 08:37:20
○ 2026-06-30 23:37:08

○A104.17.13.852021-04-02 → 2021-10-04 · 5 obs

○ 2017-10-05 16:30:36
● 2021-04-02 10:48:54
● 2021-10-04 23:48:50
○ 2026-02-16 08:37:20
○ 2026-06-30 23:37:08

○A104.17.14.852021-04-02 → 2021-10-04 · 5 obs

○ 2017-10-05 16:30:36
● 2021-04-02 10:48:54
● 2021-10-04 23:48:50
○ 2026-02-16 08:37:20
○ 2026-06-30 23:37:08

○A104.17.15.852021-04-02 → 2021-10-04 · 5 obs

○ 2017-10-05 16:30:36
● 2021-04-02 10:48:54
● 2021-10-04 23:48:50
○ 2026-02-16 08:37:20
○ 2026-06-30 23:37:08

○A104.17.16.852021-04-02 → 2021-10-04 · 5 obs

○ 2017-10-05 16:30:36
● 2021-04-02 10:48:54
● 2021-10-04 23:48:50
○ 2026-02-16 08:37:20
○ 2026-06-30 23:37:08

●A104.17.160.1222026-02-16 → 2026-06-30 · 3 obs

○ 2021-10-04 23:48:50
● 2026-02-16 08:37:20
● 2026-06-30 23:37:08

●A104.17.176.1222026-02-16 → 2026-06-30 · 3 obs

○ 2021-10-04 23:48:50
● 2026-02-16 08:37:20
● 2026-06-30 23:37:08

●A104.17.192.1222026-02-16 → 2026-06-30 · 3 obs

○ 2021-10-04 23:48:50
● 2026-02-16 08:37:20
● 2026-06-30 23:37:08

●A104.18.175.2512026-02-16 → 2026-06-30 · 3 obs

○ 2021-10-04 23:48:50
● 2026-02-16 08:37:20
● 2026-06-30 23:37:08

●A104.18.191.2512026-02-16 → 2026-06-30 · 3 obs

○ 2021-10-04 23:48:50
● 2026-02-16 08:37:20
● 2026-06-30 23:37:08

○A104.20.4.372015-06-27 → 2017-10-05 · 4 obs

● 2015-06-27 22:58:44
● 2017-10-05 16:30:36
○ 2021-04-02 10:48:54
○ 2026-06-30 23:37:08

○A104.20.5.372015-06-27 → 2017-10-05 · 4 obs

● 2015-06-27 22:58:44
● 2017-10-05 16:30:36
○ 2021-04-02 10:48:54
○ 2026-06-30 23:37:08

○A2400:cb00:2048:1::6814:4252015-06-27 → 2017-10-05 · 4 obs

● 2015-06-27 22:58:44
● 2017-10-05 16:30:36
○ 2021-04-02 10:48:54
○ 2026-06-30 23:37:08

○A2400:cb00:2048:1::6814:5252015-06-27 → 2017-10-05 · 4 obs

● 2015-06-27 22:58:44
● 2017-10-05 16:30:36
○ 2021-04-02 10:48:54
○ 2026-06-30 23:37:08

○A2606:4700::6811:10552021-04-02 → 2021-10-04 · 5 obs

○ 2017-10-05 16:30:36
● 2021-04-02 10:48:54
● 2021-10-04 23:48:50
○ 2026-02-16 08:37:20
○ 2026-06-30 23:37:08

●A2606:4700::6811:a07a2026-02-16 → 2026-06-30 · 3 obs

○ 2021-10-04 23:48:50
● 2026-02-16 08:37:20
● 2026-06-30 23:37:08

●A2606:4700::6811:b07a2026-02-16 → 2026-06-30 · 3 obs

○ 2021-10-04 23:48:50
● 2026-02-16 08:37:20
● 2026-06-30 23:37:08

●A2606:4700::6811:c07a2026-02-16 → 2026-06-30 · 3 obs

○ 2021-10-04 23:48:50
● 2026-02-16 08:37:20
● 2026-06-30 23:37:08

○A2606:4700::6811:c552021-04-02 → 2021-10-04 · 5 obs

○ 2017-10-05 16:30:36
● 2021-04-02 10:48:54
● 2021-10-04 23:48:50
○ 2026-02-16 08:37:20
○ 2026-06-30 23:37:08

○A2606:4700::6811:d552021-04-02 → 2021-10-04 · 5 obs

○ 2017-10-05 16:30:36
● 2021-04-02 10:48:54
● 2021-10-04 23:48:50
○ 2026-02-16 08:37:20
○ 2026-06-30 23:37:08

○A2606:4700::6811:e552021-04-02 → 2021-10-04 · 5 obs

○ 2017-10-05 16:30:36
● 2021-04-02 10:48:54
● 2021-10-04 23:48:50
○ 2026-02-16 08:37:20
○ 2026-06-30 23:37:08

○A2606:4700::6811:f552021-04-02 → 2021-10-04 · 5 obs

○ 2017-10-05 16:30:36
● 2021-04-02 10:48:54
● 2021-10-04 23:48:50
○ 2026-02-16 08:37:20
○ 2026-06-30 23:37:08

●A2606:4700::6812:affb2026-02-16 → 2026-06-30 · 3 obs

○ 2021-10-04 23:48:50
● 2026-02-16 08:37:20
● 2026-06-30 23:37:08

●A2606:4700::6812:bffb2026-02-16 → 2026-06-30 · 3 obs

○ 2021-10-04 23:48:50
● 2026-02-16 08:37:20
● 2026-06-30 23:37:08

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
codeschool.com	dawn.ns.cloudflare.com, boyd.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.75

NS records: dawn.ns.cloudflare.com, boyd.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for codeschool.com (unsigned zone)

⏱️ Timing

Total: 383ms | Queries: -

📄 Records

Type	Count	Sample Data
A	5	`104.17.192.122, 104.18.191.251...`
AAAA	5	`2606:4700::6811:c07a, 2606:4700::6811:b07a...`
NS	2	`boyd.ns.cloudflare.com, dawn.ns.cloudflare.com`
MX	5	`aspmx.l.google.com (pri: 1), aspmx2.googlemail.com (pri: 10)...`
TXT	9	`google-site-verification=9AMkwNsGjneq0l3, google-site-verification=A8hsKb8wgGZdT5b...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`boyd.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The host names campus.codeschool.com, internal.codeschool.com, www.codeschool.com, trygithub.codeschool.com and support.codeschool.com — among a few others — fall under the parent domain codeschool.com.

IP Addresses

codeschool.com points to 10 IP addresses, including 104.17.160.122, 104.17.176.122 and 104.17.192.122, plus 7 other.

discuss.codeschool.com, javascript-roadtrip.codeschool.com, projector.codeschool.com plus two other host names have IP numbers in common with codeschool.com.

Name Servers

DNS delegation for codeschool.com points to two name servers: boyd.ns.cloudflare.com and dawn.ns.cloudflare.com.

The name server configuration of codeschool.com is shared with other domains, for instance vizardtv.com, oddsbase.net, solar-wholesale.com and two others.

At least some of codeschool.com's name servers are shared with other domains, for example tjlsvkucubbgl.space, yinzhy.com, sshl.ca and two more.

These name servers tend to be used in conjunction with the name servers will.ns.cloudflare.com.

Hosts with 6 IP addresses each:

boyd.ns.cloudflare.com has IP addresses 108.162.193.75, 172.64.33.75 and 173.245.59.75, plus 3 other.

dawn.ns.cloudflare.com has IP addresses 108.162.192.106, 172.64.32.106 and 173.245.58.106, plus 3 other.

Mail Servers

Five mail servers handle codeschool.com: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx.l.google.com and two others.

At least some of the mail servers used by codeschool.com are shared with other domains: nextpm.net, ns500737.ns500599.ns500724.ns500724.ns500737.ns500599.ns500724.ns500737.ns500599.ns500599.ns500724.ns500724.ns500599.ns500697.ns500669.ns500583.yummyflingsfinder.com, ns500768.ns500698.ns500758.ns500759.ns500758.ns500698.ns500736.ns500708.ns500576.ns500698.ns500698.ns500619.ns500686.ns500619.ns500576.trackreceptor.com and two others among them.

These mail servers are often deployed together with alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 other mail servers.

Host names pointing to two IP addresses:

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

aspmx3.googlemail.com has two IP addresses: 172.253.116.26 and 2a00:1450:400b:c02::1a.

aspmx.l.google.com has two IP addresses: 142.251.163.27 and 2607:f8b0:4004:c0b::1b.

alt1.aspmx.l.google.com has two IP addresses: 108.177.123.26 and 2800:3f0:4003:c0f::1b.

alt2.aspmx.l.google.com has two IP addresses: 172.253.116.27 and 2a00:1450:400b:c02::1a.

Host names pointing to 2800:3f0:4003:c0f::1b IP addresses: aspmx2.googlemail.com and alt1.aspmx.l.google.com.

Host names pointing to 2a00:1450:400b:c02::1a IP addresses: aspmx3.googlemail.com and alt2.aspmx.l.google.com.