en.cppreference.com - dns.ninja

en.cppreference.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:3924🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3030::ac43:bcef🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.57.36Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.188.239🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.57.36, 172.67.188.239
IPv6 hints2606:4700:3030::6815:3924, 2606:4700:3030::ac43:bcef
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=113, name=cloudflare-ech.com

cppreference.com

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:3924🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3030::ac43:bcef🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.57.36Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.188.239🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSisabel.ns.cloudflare.com ⭐
NSjake.ns.cloudflare.com
TXTv=spf1 ip4:195.201.94.168 ip6:2a01:4f8:1c1a:2e70::1 -all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.57.36, 172.67.188.239
IPv6 hints2606:4700:3030::6815:3924, 2606:4700:3030::ac43:bcef
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=113, name=cloudflare-ech.com
SOAisabel.ns.cloudflare.comdns@cloudflare.com serial=2410828131
WOT: SAFE (94/100)
rank #6064 globally
rank #3001 in the tld
WOT: SAFE (93/100)
📈 Tranco rank: #13,705

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DNS History

9 records (4 active, 5 former)

20162017201820192020202120222023202420252026A104.21.57.36172.67.188.2392606:4700:3030::6815:39242606:4700:3030::ac43:bcef208.80.6.1372604:4f00::3:0:1238:12606:4700:3035::6815:392474.114.88.13974.114.90.46
●A104.21.57.362026-04-18 → 2026-08-03 · 3 obs
○ 2026-04-04 15:38:24
● 2026-04-18 09:44:36
● 2026-08-03 00:43:52
●A172.67.188.2392026-04-18 → 2026-08-03 · 3 obs
○ 2026-04-04 15:38:24
● 2026-04-18 09:44:36
● 2026-08-03 00:43:52
○A208.80.6.1372026-03-07 → 2026-04-04 · 5 obs
○ 2020-03-16 04:51:16
● 2026-03-07 04:49:44
● 2026-04-04 15:38:24
○ 2026-04-18 09:44:36
○ 2026-08-03 00:43:52
○A2604:4f00::3:0:1238:12020-03-16 → 2026-04-04 · 5 obs
○ 2016-06-29 00:53:34
● 2020-03-16 04:51:16
● 2026-04-04 15:38:24
○ 2026-04-18 09:44:36
○ 2026-08-03 00:43:52
●A2606:4700:3030::6815:39242026-08-03 → 2026-08-03 · 2 obs
○ 2026-04-18 09:44:36
● 2026-08-03 00:43:52
●A2606:4700:3030::ac43:bcef2026-04-18 → 2026-08-03 · 3 obs
○ 2026-04-04 15:38:24
● 2026-04-18 09:44:36
● 2026-08-03 00:43:52
○A2606:4700:3035::6815:39242026-04-18 → 2026-04-18 · 3 obs
○ 2026-04-04 15:38:24
● 2026-04-18 09:44:36
○ 2026-08-03 00:43:52
○A74.114.88.1392015-08-19 → 2016-06-29 · 4 obs
● 2015-08-19 18:26:12
● 2016-06-29 00:53:34
○ 2020-03-16 04:51:16
○ 2026-08-03 00:43:52
○A74.114.90.462020-03-16 → 2020-03-16 · 4 obs
○ 2016-06-29 00:53:34
● 2020-03-16 04:51:16
○ 2026-03-07 04:49:44
○ 2026-08-03 00:43:52

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cppreference.comjake.ns.cloudflare.com, isabel.ns.cloudflare.com-

✅ 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: 131ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.57.36, 172.67.188.239
AAAA22606:4700:3030::6815:3924, 2606:4700:3030::ac43:bcef
HTTPS1{"priority":1,"target":".","alpn":["h3",

Analysis

IP Addresses

en.cppreference.com resolves to four IP addresses: 104.21.57.36, 172.67.188.239, 2606:4700:3030::6815:3924 and 2606:4700:3030::ac43:bcef.

Among the host names that share IP numbers with en.cppreference.com are mlife-s2.websiteforever.com, tankeflode.se, shikobeauty.com and two others.