gcplearning.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`gcplearning.com`

DNSSEC	🔒 Signed (DS record present)
A	2606:4700::6812:d9^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700::6812:1d9^{🇺🇸 Cloudflare2606:4700::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.0.217^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.18.1.217^{Cloudflare104.18.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`burt.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b4f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c14f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`burt.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:214f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`burt.ns.cloudflare.com`
		A	108.162.193.79^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
		A	172.64.33.79^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
		A	173.245.59.79^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`burt.ns.cloudflare.com`
NS	`katelyn.ns.cloudflare.com`
		A	2606:4700:50::a29f:26eb^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`katelyn.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2eb^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`katelyn.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22eb^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`katelyn.ns.cloudflare.com`
		A	108.162.194.235^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`katelyn.ns.cloudflare.com`
		A	162.159.38.235^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`katelyn.ns.cloudflare.com`
		A	172.64.34.235^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`katelyn.ns.cloudflare.com`
MX	`gcplearning-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:cc09::^{🇸🇬 Microsoft2a01:111:f000::/36}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1a::8^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-tydpr03cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:cc1f::4^{🇯🇵 Microsoft2a01:111:f000::/36}
			PTR	`mail-os8pr02cu00104.inbound.protection.outlook.com`
		A	52.101.124.117^{🇯🇵 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-tydpr03cu00105.inbound.protection.outlook.com`
		A	52.101.137.0^{🇸🇬 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sg2pr03cu00500.inbound.protection.outlook.com`
		A	52.101.157.80^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-os8pr02cu00100.inbound.protection.outlook.com`
TXT	`MS=ms77395700`
TXT	`v=spf1 include:spf.protection.outlook.com include:one.zoho.in -all`
HTTPS	HTTP/2 ✓ hints match
		IPv4 hints	104.18.0.217, 104.18.1.217
		IPv6 hints	2606:4700::6812:d9, 2606:4700::6812:1d9
SOA	`burt.ns.cloudflare.com`dns@cloudflare.com serial=2410889464

`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=1786941474

📈 Tranco rank: #582,979

Subdomains

campaign.gcplearning.com

www.gcplearning.com

Same first word

gcplearning.com

DNS History

17 records (7 active, 10 former)

●NSburt.ns.cloudflare.com2026-08-17 → 2026-08-17 · 2 obs

○ 2026-04-13 17:11:56
● 2026-08-17 05:01:42

●NSkatelyn.ns.cloudflare.com2026-08-17 → 2026-08-17 · 2 obs

○ 2026-04-13 17:11:56
● 2026-08-17 05:01:42

○NSns21.domaincontrol.com2026-04-13 → 2026-04-13 · 3 obs

○ 2017-04-03 17:50:30
● 2026-04-13 17:11:56
○ 2026-08-17 05:01:42

○NSns22.domaincontrol.com2026-04-13 → 2026-04-13 · 3 obs

○ 2017-04-03 17:50:30
● 2026-04-13 17:11:56
○ 2026-08-17 05:01:42

○NSns25.domaincontrol.com2015-06-09 → 2017-04-03 · 4 obs

● 2015-06-09 10:28:32
● 2017-04-03 17:50:30
○ 2026-04-13 17:11:56
○ 2026-08-17 05:01:42

○NSns26.domaincontrol.com2015-06-09 → 2017-04-03 · 4 obs

● 2015-06-09 10:28:32
● 2017-04-03 17:50:30
○ 2026-04-13 17:11:56
○ 2026-08-17 05:01:42

●MXgcplearning-com.mail.protection.outlook.com2026-04-13 → 2026-08-17 · 3 obs

○ 2017-04-03 17:50:30
● 2026-04-13 17:11:56
● 2026-08-17 05:01:42

○MXmailstore1.secureserver.net2015-06-09 → 2017-04-03 · 4 obs

● 2015-06-09 10:28:32
● 2017-04-03 17:50:30
○ 2026-04-13 17:11:56
○ 2026-08-17 05:01:42

○MXsmtp.secureserver.net2015-06-09 → 2017-04-03 · 4 obs

● 2015-06-09 10:28:32
● 2017-04-03 17:50:30
○ 2026-04-13 17:11:56
○ 2026-08-17 05:01:42

●A104.18.0.2172026-08-17 → 2026-08-17 · 2 obs

○ 2026-04-13 17:11:56
● 2026-08-17 05:01:42

●A104.18.1.2172026-08-17 → 2026-08-17 · 2 obs

○ 2026-04-13 17:11:56
● 2026-08-17 05:01:42

○A184.168.192.1012015-06-09 → 2016-03-31 · 4 obs

● 2015-06-09 10:28:32
● 2016-03-31 13:54:36
○ 2016-09-15 18:47:54
○ 2026-08-17 05:01:42

○A199.119.121.162026-04-13 → 2026-04-13 · 3 obs

○ 2017-04-03 17:50:30
● 2026-04-13 17:11:56
○ 2026-08-17 05:01:42

●A2606:4700::6812:1d92026-08-17 → 2026-08-17 · 2 obs

○ 2026-04-13 17:11:56
● 2026-08-17 05:01:42

●A2606:4700::6812:d92026-08-17 → 2026-08-17 · 2 obs

○ 2026-04-13 17:11:56
● 2026-08-17 05:01:42

○A45.40.165.332017-04-03 → 2017-04-03 · 4 obs

○ 2016-09-15 18:47:54
● 2017-04-03 17:50:30
○ 2026-04-13 17:11:56
○ 2026-08-17 05:01:42

○A97.74.215.2022016-09-15 → 2016-09-15 · 4 obs

○ 2016-03-31 13:54:36
● 2016-09-15 18:47:54
○ 2017-04-03 17:50:30
○ 2026-08-17 05:01:42

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	d.gtld-servers.net, a.gtld-servers.net, i.gtld-servers.net, j.gtld-servers.net...	-
gcplearning.com	burt.ns.cloudflare.com, katelyn.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.79

NS records: burt.ns.cloudflare.com, katelyn.ns.cloudflare.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 1510ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.18.0.217, 104.18.1.217`
AAAA	2	`2606:4700::6812:d9, 2606:4700::6812:1d9`
NS	2	`burt.ns.cloudflare.com, katelyn.ns.cloudflare.com`
MX	1	`gcplearning-com.mail.protection.outlook.`
TXT	2	`MS=ms77395700, v=spf1 include:spf.protection.outlook.co`
HTTPS	1	`{"priority":1,"target":".","alpn":["h2"]`
SOA	1	`burt.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

gcplearning.com is the parent domain of campaign.gcplearning.com and www.gcplearning.com.

IP Addresses

gcplearning.com resolves to four IP addresses: 104.18.0.217, 104.18.1.217, 2606:4700::6812:d9 and 2606:4700::6812:1d9.

Additional host names — www.gcplearning.com, alliedseed.com, kf.us.aa.apollo.roche.com and two others — share IP numbers with gcplearning.com.

Name Servers

gcplearning.com uses two name servers for its delegation: burt.ns.cloudflare.com and katelyn.ns.cloudflare.com.

gcplearning.com shares its name server setup with other domains, including biospective.ai, imafez.workers.dev, beatradio.com.ar and two others.

gcplearning.com has at least partial name server overlap with other domains, such as rapidity-news.com, 8l9l.com, engeform.com.br and two others.

It is common to see these name servers used together with name servers valentin.ns.cloudflare.com and arya.ns.cloudflare.com.

Host names with 6 IP numbers:

Hostname burt.ns.cloudflare.com directs to 108.162.193.79, 172.64.33.79 and 173.245.59.79 along with 3 other IP addresses.

Hostname katelyn.ns.cloudflare.com directs to 108.162.194.235, 162.159.38.235 and 172.64.34.235 along with 3 other IP addresses.

Mail Servers

gcplearning.com has one mail server: gcplearning-com.mail.protection.outlook.com.

gcplearning-com.mail.protection.outlook.com points to 6 IP numbers: 52.101.124.117, 52.101.137.0, 52.101.157.80 and 3 other.