cppreference.com - dns.ninja

`cppreference.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3030::ac43:bcef^{🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::6815:3924^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.57.36^{Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.188.239^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`isabel.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2668^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isabel.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c268^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`isabel.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2268^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`isabel.ns.cloudflare.com`
		A	108.162.194.104^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isabel.ns.cloudflare.com`
		A	162.159.38.104^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isabel.ns.cloudflare.com`
		A	172.64.34.104^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`isabel.ns.cloudflare.com`
NS	`jake.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b7a^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jake.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c17a^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jake.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:217a^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jake.ns.cloudflare.com`
		A	108.162.193.122^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jake.ns.cloudflare.com`
		A	172.64.33.122^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jake.ns.cloudflare.com`
		A	173.245.59.122^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jake.ns.cloudflare.com`
TXT	`v=spf1 ip4:195.201.94.168 ip6:2a01:4f8:1c1a:2e70::1 -all`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.57.36, 172.67.188.239
		IPv6 hints	2606:4700:3030::ac43:bcef, 2606:4700:3035::6815:3924
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=130, name=cloudflare-ech.com
SOA	`isabel.ns.cloudflare.com`dns@cloudflare.com serial=2402535701

`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=1781353283

rank #6215 globally
rank #3064 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #20,468

PTR for

137.6.80.208.in-addr.arpa

1.0.0.0.8.3.2.1.0.0.0.0.3.0.0.0.0.0.0.0.0.0.0.0.0.0.f.4.4.0.6.2.ip6.arpa

Subdomains

fr.cppreference.com

de.cppreference.com

ja.cppreference.com

tr.cppreference.com

ko.cppreference.com

zh.cppreference.com

www.cppreference.com

ar.cppreference.com

pt.cppreference.com

es.cppreference.com

mail.cppreference.com

ru.cppreference.com

upload.cppreference.com

en.cppreference.com

pl.cppreference.com

cs.cppreference.com

Same first word

cppreference.com

cppreference.net

cppreference.org

DNS History

17 records (6 active, 11 former)

●NSisabel.ns.cloudflare.com2026-04-16 → 2026-06-13 · 3 obs

○ 2026-04-10 17:33:28
● 2026-04-16 20:33:44
● 2026-06-13 12:40:18

●NSjake.ns.cloudflare.com2026-04-16 → 2026-06-13 · 3 obs

○ 2026-04-10 17:33:28
● 2026-04-16 20:33:44
● 2026-06-13 12:40:18

○NSns1.tigertech.net2015-07-12 → 2026-04-10 · 4 obs

● 2015-07-12 23:43:02
● 2026-04-10 17:33:28
○ 2026-04-16 20:33:44
○ 2026-06-13 12:40:18

○NSns2.tigertech.biz2015-07-12 → 2026-04-10 · 4 obs

● 2015-07-12 23:43:02
● 2026-04-10 17:33:28
○ 2026-04-16 20:33:44
○ 2026-06-13 12:40:18

○NSns3.tigertech.org2015-07-12 → 2026-04-10 · 4 obs

● 2015-07-12 23:43:02
● 2026-04-10 17:33:28
○ 2026-04-16 20:33:44
○ 2026-06-13 12:40:18

○MXmx1.tigertech.net2015-07-12 → 2026-04-10 · 4 obs

● 2015-07-12 23:43:02
● 2026-04-10 17:33:28
○ 2026-04-16 20:33:44
○ 2026-06-13 12:40:18

○MXmx2.tigertech.net2015-07-12 → 2026-04-10 · 4 obs

● 2015-07-12 23:43:02
● 2026-04-10 17:33:28
○ 2026-04-16 20:33:44
○ 2026-06-13 12:40:18

○MXmx3.tigertech.net2015-07-12 → 2026-04-10 · 4 obs

● 2015-07-12 23:43:02
● 2026-04-10 17:33:28
○ 2026-04-16 20:33:44
○ 2026-06-13 12:40:18

●A104.21.57.362026-04-18 → 2026-06-13 · 3 obs

○ 2026-04-16 20:33:44
● 2026-04-18 09:44:36
● 2026-06-13 12:40:18

●A172.67.188.2392026-04-18 → 2026-06-13 · 3 obs

○ 2026-04-16 20:33:44
● 2026-04-18 09:44:36
● 2026-06-13 12:40:18

○A208.80.6.1372026-03-04 → 2026-04-16 · 5 obs

○ 2020-03-16 04:51:20
● 2026-03-04 01:23:02
● 2026-04-16 20:33:44
○ 2026-04-18 09:44:36
○ 2026-06-13 12:40:18

○A2604:4f00::3:0:1238:12020-03-16 → 2026-04-16 · 5 obs

○ 2017-02-12 04:36:16
● 2020-03-16 04:51:20
● 2026-04-16 20:33:44
○ 2026-04-18 09:44:36
○ 2026-06-13 12:40:18

●A2606:4700:3030::ac43:bcef2026-04-18 → 2026-06-13 · 3 obs

○ 2026-04-16 20:33:44
● 2026-04-18 09:44:36
● 2026-06-13 12:40:18

●A2606:4700:3035::6815:39242026-04-18 → 2026-06-13 · 3 obs

○ 2026-04-16 20:33:44
● 2026-04-18 09:44:36
● 2026-06-13 12:40:18

○A74.114.88.1282015-07-12 → 2015-07-12 · 3 obs

● 2015-07-12 23:43:02
○ 2015-09-13 19:06:50
○ 2026-06-13 12:40:18

○A74.114.88.1392015-09-13 → 2017-02-12 · 5 obs

○ 2015-07-12 23:43:02
● 2015-09-13 19:06:50
● 2017-02-12 04:36:16
○ 2020-03-16 04:51:20
○ 2026-06-13 12:40:18

○A74.114.90.462020-03-16 → 2020-03-16 · 4 obs

○ 2017-02-12 04:36:16
● 2020-03-16 04:51:20
○ 2026-03-04 01:23:02
○ 2026-06-13 12:40:18

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, m.gtld-servers.net, b.gtld-servers.net, d.gtld-servers.net...	-
cppreference.com	jake.ns.cloudflare.com, isabel.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.194.104

NS records: jake.ns.cloudflare.com, isabel.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cppreference.com (unsigned zone)

⏱️ Timing

Total: 233ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.57.36, 172.67.188.239`
AAAA	2	`2606:4700:3030::ac43:bcef, 2606:4700:3035::6815:3924`
NS	2	`isabel.ns.cloudflare.com, jake.ns.cloudflare.com`
TXT	1	`v=spf1 ip4:195.201.94.168 ip6:2a01:4f8:1`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`isabel.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

cppreference.com serves as parent to fr.cppreference.com, de.cppreference.com, ja.cppreference.com, tr.cppreference.com, ko.cppreference.com along with a few other host names.

IP Addresses

cppreference.com points to four IP numbers: 104.21.57.36, 172.67.188.239, 2606:4700:3030::ac43:bcef and 2606:4700:3035::6815:3924.

thestreets.lv, bactrim2018.icu, inpas.com plus two other host names have IP numbers in common with cppreference.com.

Name Servers

cppreference.com has two authoritative name servers — isabel.ns.cloudflare.com and jake.ns.cloudflare.com.

The name server configuration of cppreference.com is shared with other domains, for instance solstar.ru, circles.ie, epicroasthouse.com and two others.

cppreference.com has at least partial name server overlap with other domains, such as ecofriend-group.com, delphinehomes.com, fracturesounds.com and two others.

It is common to find these name servers paired with the name servers kim.ns.cloudflare.com, bruce.ns.cloudflare.com, sue.ns.cloudflare.com and rommy.ns.cloudflare.com.

Hosts with 6 IP addresses each:

isabel.ns.cloudflare.com points to 108.162.194.104, 162.159.38.104, 172.64.34.104 and 3 other IP addresses.

jake.ns.cloudflare.com points to 108.162.193.122, 172.64.33.122, 173.245.59.122 and 3 other IP addresses.