cu40.com - dns.ninja

🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`cu40.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:20f3^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:bc4e^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.32.243^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.188.78^{🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`autumn.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:2694^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`autumn.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c294^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`autumn.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2294^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`autumn.ns.cloudflare.com`
		A	108.162.194.148^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`autumn.ns.cloudflare.com`
		A	162.159.38.148^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`autumn.ns.cloudflare.com`
		A	172.64.34.148^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`autumn.ns.cloudflare.com`
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`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.32.243, 172.67.188.78
		IPv6 hints	2606:4700:3032::6815:20f3, 2606:4700:3037::ac43:bc4e
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=237, name=cloudflare-ech.com
SOA	`autumn.ns.cloudflare.com`dns@cloudflare.com serial=2412250472

`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=1786853154

Same first word

cu40.com

Similar names

u04c.xyz

40cu.com

04uc.com

04uc.cn

uc40.com

40uc.com

DNS History

14 records (6 active, 8 former)

●NSautumn.ns.cloudflare.com2026-03-09 → 2026-08-16 · 3 obs

○ 2017-09-19 05:13:18
● 2026-03-09 15:43:42
● 2026-08-16 04:33:28

●NSboyd.ns.cloudflare.com2026-03-09 → 2026-08-16 · 3 obs

○ 2017-09-19 05:13:18
● 2026-03-09 15:43:42
● 2026-08-16 04:33:28

○NSns63.domaincontrol.com2015-07-06 → 2017-09-19 · 4 obs

● 2015-07-06 16:24:56
● 2017-09-19 05:13:18
○ 2026-03-09 15:43:42
○ 2026-08-16 04:33:28

○NSns64.domaincontrol.com2015-07-06 → 2017-09-19 · 4 obs

● 2015-07-06 16:24:56
● 2017-09-19 05:13:18
○ 2026-03-09 15:43:42
○ 2026-08-16 04:33:28

○MXmailstore1.secureserver.net2015-07-06 → 2017-09-19 · 4 obs

● 2015-07-06 16:24:56
● 2017-09-19 05:13:18
○ 2026-03-09 15:43:42
○ 2026-08-16 04:33:28

○MXsmtp.secureserver.net2015-07-06 → 2017-09-19 · 4 obs

● 2015-07-06 16:24:56
● 2017-09-19 05:13:18
○ 2026-03-09 15:43:42
○ 2026-08-16 04:33:28

○A103.84.110.1532026-03-26 → 2026-03-26 · 4 obs

○ 2026-03-09 15:43:42
● 2026-03-26 16:22:58
○ 2026-07-19 12:54:34
○ 2026-08-16 04:33:28

●A104.21.32.2432026-08-16 → 2026-08-16 · 2 obs

○ 2026-07-19 12:54:34
● 2026-08-16 04:33:28

○A104.233.147.1352026-07-19 → 2026-07-19 · 3 obs

○ 2026-03-26 16:22:58
● 2026-07-19 12:54:34
○ 2026-08-16 04:33:28

●A172.67.188.782026-08-16 → 2026-08-16 · 2 obs

○ 2026-07-19 12:54:34
● 2026-08-16 04:33:28

●A2606:4700:3032::6815:20f32026-08-16 → 2026-08-16 · 2 obs

○ 2026-07-19 12:54:34
● 2026-08-16 04:33:28

●A2606:4700:3037::ac43:bc4e2026-08-16 → 2026-08-16 · 2 obs

○ 2026-07-19 12:54:34
● 2026-08-16 04:33:28

○A38.54.101.1922026-03-09 → 2026-03-09 · 4 obs

○ 2017-09-19 05:13:18
● 2026-03-09 15:43:42
○ 2026-03-26 16:22:58
○ 2026-08-16 04:33:28

○A50.63.202.632015-07-06 → 2017-09-19 · 4 obs

● 2015-07-06 16:24:56
● 2017-09-19 05:13:18
○ 2026-03-09 15:43:42
○ 2026-08-16 04:33:28

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, h.gtld-servers.net, d.gtld-servers.net...	-
cu40.com	boyd.ns.cloudflare.com, autumn.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.75

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for cu40.com (unsigned zone)

⏱️ Timing

Total: 178ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.32.243, 172.67.188.78`
AAAA	2	`2606:4700:3037::ac43:bc4e, 2606:4700:3032::6815:20f3`
NS	2	`autumn.ns.cloudflare.com, boyd.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`autumn.ns.cloudflare.com dns.cloudflare.`

📌 Glue Records Collected

Total: 12

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

Analysis

IP Addresses

cu40.com has four IP addresses: 104.21.32.243, 172.67.188.78, 2606:4700:3032::6815:20f3 and 2606:4700:3037::ac43:bc4e.

changhuamachinery.com, hnlipin.net, arena-slupsk.pl and two other host names share IP numbers with cu40.com.

Name Servers

Two name servers handle the delegation for cu40.com: autumn.ns.cloudflare.com and boyd.ns.cloudflare.com.

cu40.com uses the same name servers as several other domains — among them liuxue82.com, cgs108.com, 29ou.com and two more.

cu40.com partially shares its NS delegation with several other domains, including hord.app, palletsjoy.com, bigbluefootballhistory.com and two others.

These name servers often co-occur with the name servers felipe.ns.cloudflare.com.

Hostnames that resolve to 6 IP addresses:

autumn.ns.cloudflare.com resolves to 108.162.194.148, 162.159.38.148 and 172.64.34.148 among others, with 3 other IP addresses in total.

boyd.ns.cloudflare.com resolves to 108.162.193.75, 172.64.33.75 and 173.245.59.75 among others, with 3 other IP addresses in total.