learncpp.online - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`learncpp.online`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:84b3^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::6815:507^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.5.7^{Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.132.179^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`harlan.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cfa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3fa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`harlan.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23fa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`harlan.ns.cloudflare.com`
		A	108.162.195.250^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	162.159.44.250^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
		A	172.64.35.250^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`harlan.ns.cloudflare.com`
NS	`josephine.ns.cloudflare.com`
		A	2606:4700:50::a29f:2640^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c240^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`josephine.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2240^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`josephine.ns.cloudflare.com`
		A	108.162.194.64^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
		A	162.159.38.64^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
		A	172.64.34.64^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`josephine.ns.cloudflare.com`
MX	`gmr-smtp-in.l.google.com` ⭐
		A	2607:f8b0:4004:c1d::e^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`ww-in-f14.1e100.net`
		A	142.251.167.14^{🇺🇸 Google142.251.167.0/24}
			PTR	`ww-in-f14.1e100.net`
MX	`alt1.gmr-smtp-in.l.google.com`⁽¹⁰⁾
		A	2800:3f0:4003:c14::e^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.14^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f14.1e100.net`
MX	`alt2.gmr-smtp-in.l.google.com`⁽²⁰⁾
		A	2a00:1450:400b:c02::e^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f14.1e100.net`
		A	172.253.116.14^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f14.1e100.net`
MX	`alt3.gmr-smtp-in.l.google.com`⁽³⁰⁾
		A	2a00:1450:4009:c0f::e^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f14.1e100.net`
		A	192.178.223.14^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f14.1e100.net`
MX	`alt4.gmr-smtp-in.l.google.com`⁽⁴⁰⁾
		A	2a00:1450:400c:c23::e^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f14.1e100.net`
		A	172.253.157.14^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f14.1e100.net`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.5.7, 172.67.132.179
		IPv6 hints	2606:4700:3030::ac43:84b3, 2606:4700:3033::6815:507
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=47, name=cloudflare-ech.com
SOA	`harlan.ns.cloudflare.com`dns@cloudflare.com serial=2411771492

`online`

	DNSSEC	🔒 Signed (DS record present)
	NS	`ns01.trs-dns.com` ⭐
	NS	`ns.trs-dns.com`
	NS	`ns01.trs-dns.net`
	NS	`ns10.trs-dns.info`
	NS	`ns10.trs-dns.org`
	SOA	`ns.trs-dns.com`trs-ops@tucows.com serial=1788690812

⚠️ On DNS blocklist: spam-tlds

Same first word

learncpp.online

learncpp.site

learncpp.com

learncpp.cn

learncpp.pages.dev

Similar names

Previous names

Next names

DNS History

15 records (11 active, 4 former)

●NSharlan.ns.cloudflare.com2026-08-22 → 2026-09-06 · 2 obs

● 2026-08-22 03:47:00
● 2026-09-06 10:45:10

●NSjosephine.ns.cloudflare.com2026-08-22 → 2026-09-06 · 2 obs

● 2026-08-22 03:47:00
● 2026-09-06 10:45:10

●MXalt1.gmr-smtp-in.l.google.com2026-08-22 → 2026-09-06 · 2 obs

● 2026-08-22 03:47:00
● 2026-09-06 10:45:10

●MXalt2.gmr-smtp-in.l.google.com2026-08-22 → 2026-09-06 · 2 obs

● 2026-08-22 03:47:00
● 2026-09-06 10:45:10

●MXalt3.gmr-smtp-in.l.google.com2026-08-22 → 2026-09-06 · 2 obs

● 2026-08-22 03:47:00
● 2026-09-06 10:45:10

●MXalt4.gmr-smtp-in.l.google.com2026-08-22 → 2026-09-06 · 2 obs

● 2026-08-22 03:47:00
● 2026-09-06 10:45:10

●MXgmr-smtp-in.l.google.com2026-08-22 → 2026-09-06 · 2 obs

● 2026-08-22 03:47:00
● 2026-09-06 10:45:10

●A104.21.5.72026-08-25 → 2026-09-06 · 5 obs

○ 2026-08-22 03:47:00
● 2026-08-25 16:48:54
○ 2026-09-05 04:16:08
● 2026-09-06 08:02:50
● 2026-09-06 10:45:10

●A172.67.132.1792026-08-25 → 2026-09-06 · 5 obs

○ 2026-08-22 03:47:00
● 2026-08-25 16:48:54
○ 2026-09-05 04:16:08
● 2026-09-06 08:02:50
● 2026-09-06 10:45:10

○A188.114.96.02026-08-22 → 2026-09-05 · 5 obs

● 2026-08-22 03:47:00
○ 2026-08-25 16:48:54
● 2026-09-05 04:16:08
○ 2026-09-06 08:02:50
○ 2026-09-06 10:45:10

○A188.114.97.02026-08-22 → 2026-09-05 · 5 obs

● 2026-08-22 03:47:00
○ 2026-08-25 16:48:54
● 2026-09-05 04:16:08
○ 2026-09-06 08:02:50
○ 2026-09-06 10:45:10

●A2606:4700:3030::ac43:84b32026-08-25 → 2026-09-06 · 5 obs

○ 2026-08-22 03:47:00
● 2026-08-25 16:48:54
○ 2026-09-05 04:16:08
● 2026-09-06 08:02:50
● 2026-09-06 10:45:10

●A2606:4700:3033::6815:5072026-08-25 → 2026-09-06 · 5 obs

○ 2026-08-22 03:47:00
● 2026-08-25 16:48:54
○ 2026-09-05 04:16:08
● 2026-09-06 08:02:50
● 2026-09-06 10:45:10

○A2a06:98c1:3120::2026-08-22 → 2026-09-05 · 5 obs

● 2026-08-22 03:47:00
○ 2026-08-25 16:48:54
● 2026-09-05 04:16:08
○ 2026-09-06 08:02:50
○ 2026-09-06 10:45:10

○A2a06:98c1:3121::2026-08-22 → 2026-09-05 · 5 obs

● 2026-08-22 03:47:00
○ 2026-08-25 16:48:54
● 2026-09-05 04:16:08
○ 2026-09-06 08:02:50
○ 2026-09-06 10:45:10

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
online	ns10.trs-dns.info, ns10.trs-dns.org, ns01.trs-dns.com, ns01.trs-dns.net	8 records
learncpp.online	josephine.ns.cloudflare.com, harlan.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.250

NS records: josephine.ns.cloudflare.com, harlan.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for learncpp.online (unsigned zone)

⏱️ Timing

Total: 2401ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.5.7, 172.67.132.179`
AAAA	2	`2606:4700:3033::6815:507, 2606:4700:3030::ac43:84b3`
NS	2	`harlan.ns.cloudflare.com, josephine.ns.cloudflare.com`
MX	5	`alt1.gmr-smtp-in.l.google.com (pri: 10), alt2.gmr-smtp-in.l.google.com (pri: 20)...`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`harlan.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 8

Out-of-bailiwick: 8 (ns10.trs-dns.info, ns10.trs-dns.org, ns01.trs-dns.net...)

Analysis

IP Addresses

learncpp.online resolves to four IP addresses: 104.21.5.7, 172.67.132.179, 2606:4700:3030::ac43:84b3 and 2606:4700:3033::6815:507.

bxshnet.com, hladagent.com, bodyreboot.com plus two other host names have IP numbers in common with learncpp.online.

Name Servers

learncpp.online uses two name servers for its delegation: harlan.ns.cloudflare.com and josephine.ns.cloudflare.com.

The name server configuration of learncpp.online is shared with other domains, for instance h5book.workers.dev, bit-bf6.workers.dev, loveherfeet.com and two others.

learncpp.online has at least partial name server overlap with other domains, such as sjz898.com, trifectatherapy.com, polofield.bike and two others.

These name servers tend to appear together with the name servers nena.ns.cloudflare.com, dion.ns.cloudflare.com and jule.ns.cloudflare.com.

Hosts with 6 IP addresses each:

Hostname harlan.ns.cloudflare.com directs to 108.162.195.250, 162.159.44.250 and 172.64.35.250 along with 3 other IP addresses.

Hostname josephine.ns.cloudflare.com directs to 108.162.194.64, 162.159.38.64 and 172.64.34.64 along with 3 other IP addresses.

Mail Servers

learncpp.online is handled by five mail servers: gmr-smtp-in.l.google.com, alt1.gmr-smtp-in.l.google.com, alt2.gmr-smtp-in.l.google.com and two others.

At least some of the mail servers used by learncpp.online are shared with other domains: www.djfyx88.com--showsiteinf.appspot.com--www.showsiteinf.appspot.com, megashemes.appspot.com, socgrad.appspot.com and two others among them.

These mail servers tend to be used in combination with the mail servers alt3.gmr-smtp-in.l.google.com and alt4.gmr-smtp-in.l.google.com.

Host names pointing to two IP addresses:

gmr-smtp-in.l.google.com directs traffic to 142.251.167.14 and 2607:f8b0:4004:c1d::e.

alt1.gmr-smtp-in.l.google.com directs traffic to 192.178.234.14 and 2800:3f0:4003:c14::e.

alt2.gmr-smtp-in.l.google.com directs traffic to 172.253.116.14 and 2a00:1450:400b:c02::e.

alt3.gmr-smtp-in.l.google.com directs traffic to 192.178.223.14 and 2a00:1450:4009:c0f::e.

alt4.gmr-smtp-in.l.google.com directs traffic to 172.253.157.14 and 2a00:1450:400c:c23::e.