`281u.com`

DNSSEC	⚠️ Not signed
A	2606:4700:3031::6815:2f7d^{🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3035::ac43:93a5^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.47.125^{Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.147.165^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`dane.ns.cloudflare.com` ⭐
		A	2606:4700:58::adf5:3b61^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dane.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c161^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`dane.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2161^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`dane.ns.cloudflare.com`
		A	108.162.193.97^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dane.ns.cloudflare.com`
		A	172.64.33.97^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dane.ns.cloudflare.com`
		A	173.245.59.97^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`dane.ns.cloudflare.com`
NS	`jasmine.ns.cloudflare.com`
		A	2606:4700:50::adf5:3aaa^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jasmine.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c0aa^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jasmine.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:20aa^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jasmine.ns.cloudflare.com`
		A	108.162.192.170^{🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jasmine.ns.cloudflare.com`
		A	172.64.32.170^{🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jasmine.ns.cloudflare.com`
		A	173.245.58.170^{🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jasmine.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.47.125, 172.67.147.165
		IPv6	2606:4700:3031::6815:2f7d, 2606:4700:3035::ac43:93a5
SOA	`dane.ns.cloudflare.com`dns@cloudflare.com serial=2397198727

`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=1774586017

Subdomains

www.281u.com

Same first word

281u.com

Similar names

u821.com

128u.com

u218.tv

u281.com

12u8.com

u821.cn

128u.cc

u812.info

u218.com

u281.cn

2u81.com

182u.com

u218.de

821u.com

21u8.casino

218u.com

2u18.com

812u.com

u182.com

81u2.cn

DNS History

23 records (6 active, 17 former)

●NSdane.ns.cloudflare.com2026-02-15 → 2026-03-27 · 3 obs

○ 2020-01-06 06:37:42
● 2026-02-15 20:06:20
● 2026-03-27 04:57:32

○NSdns1.iidns.com2016-03-02 → 2017-02-17 · 4 obs

● 2016-03-02 10:02:54
● 2017-02-17 22:59:40
○ 2020-01-06 06:37:42
○ 2026-03-27 04:57:32

○NSdns2.iidns.com2016-03-02 → 2017-02-17 · 4 obs

● 2016-03-02 10:02:54
● 2017-02-17 22:59:40
○ 2020-01-06 06:37:42
○ 2026-03-27 04:57:32

○NSdns3.iidns.com2016-03-02 → 2017-02-17 · 4 obs

● 2016-03-02 10:02:54
● 2017-02-17 22:59:40
○ 2020-01-06 06:37:42
○ 2026-03-27 04:57:32

○NSdns4.iidns.com2016-03-02 → 2017-02-17 · 4 obs

● 2016-03-02 10:02:54
● 2017-02-17 22:59:40
○ 2020-01-06 06:37:42
○ 2026-03-27 04:57:32

○NSdns5.iidns.com2016-03-02 → 2017-02-17 · 4 obs

● 2016-03-02 10:02:54
● 2017-02-17 22:59:40
○ 2020-01-06 06:37:42
○ 2026-03-27 04:57:32

○NSdns6.iidns.com2016-03-02 → 2017-02-17 · 4 obs

● 2016-03-02 10:02:54
● 2017-02-17 22:59:40
○ 2020-01-06 06:37:42
○ 2026-03-27 04:57:32

●NSjasmine.ns.cloudflare.com2026-02-15 → 2026-03-27 · 3 obs

○ 2020-01-06 06:37:42
● 2026-02-15 20:06:20
● 2026-03-27 04:57:32

○NSns3.dns.com2020-01-06 → 2020-01-06 · 4 obs

○ 2017-02-17 22:59:40
● 2020-01-06 06:37:42
○ 2026-02-15 20:06:20
○ 2026-03-27 04:57:32

○NSns4.dns.com2020-01-06 → 2020-01-06 · 4 obs

○ 2017-02-17 22:59:40
● 2020-01-06 06:37:42
○ 2026-02-15 20:06:20
○ 2026-03-27 04:57:32

○A103.241.230.1312017-02-17 → 2017-02-17 · 4 obs

○ 2016-07-02 13:20:40
● 2017-02-17 22:59:40
○ 2020-01-06 06:37:42
○ 2026-03-27 04:57:32

○A103.241.230.1322017-02-17 → 2017-02-17 · 4 obs

○ 2016-07-02 13:20:40
● 2017-02-17 22:59:40
○ 2020-01-06 06:37:42
○ 2026-03-27 04:57:32

○A103.241.230.1332017-02-17 → 2017-02-17 · 4 obs

○ 2016-07-02 13:20:40
● 2017-02-17 22:59:40
○ 2020-01-06 06:37:42
○ 2026-03-27 04:57:32

○A103.241.230.1342017-02-17 → 2017-02-17 · 4 obs

○ 2016-07-02 13:20:40
● 2017-02-17 22:59:40
○ 2020-01-06 06:37:42
○ 2026-03-27 04:57:32

●A104.21.47.1252026-02-15 → 2026-03-27 · 3 obs

○ 2020-01-06 06:37:42
● 2026-02-15 20:06:20
● 2026-03-27 04:57:32

○A107.167.19.722016-03-02 → 2016-03-02 · 3 obs

● 2016-03-02 10:02:54
○ 2016-07-02 13:20:40
○ 2026-03-27 04:57:32

○A107.167.19.732016-03-02 → 2016-03-02 · 3 obs

● 2016-03-02 10:02:54
○ 2016-07-02 13:20:40
○ 2026-03-27 04:57:32

○A107.167.19.742016-07-02 → 2016-07-02 · 4 obs

○ 2016-03-02 10:02:54
● 2016-07-02 13:20:40
○ 2017-02-17 22:59:40
○ 2026-03-27 04:57:32

○A107.167.19.752016-07-02 → 2016-07-02 · 4 obs

○ 2016-03-02 10:02:54
● 2016-07-02 13:20:40
○ 2017-02-17 22:59:40
○ 2026-03-27 04:57:32

●A172.67.147.1652026-02-15 → 2026-03-27 · 3 obs

○ 2020-01-06 06:37:42
● 2026-02-15 20:06:20
● 2026-03-27 04:57:32

●A2606:4700:3031::6815:2f7d2026-02-15 → 2026-03-27 · 3 obs

○ 2020-01-06 06:37:42
● 2026-02-15 20:06:20
● 2026-03-27 04:57:32

●A2606:4700:3035::ac43:93a52026-02-15 → 2026-03-27 · 3 obs

○ 2020-01-06 06:37:42
● 2026-02-15 20:06:20
● 2026-03-27 04:57:32

○CNAMEcs.ename.net2016-03-02 → 2026-02-17 · 4 obs

● 2016-03-02 10:02:54
● 2026-02-17 01:05:26
○ 2026-02-17 09:28:20
○ 2026-03-27 04:57:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net...	-
281u.com	dane.ns.cloudflare.com, jasmine.ns.cloudflare.com	12 records

✅ Authoritative Response

Server:108.162.193.97

NS records: dane.ns.cloudflare.com, jasmine.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 281u.com (unsigned zone)

⏱️ Timing

Total: 129ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`172.67.147.165, 104.21.47.125`
AAAA	2	`2606:4700:3035::ac43:93a5, 2606:4700:3031::6815:2f7d`
NS	2	`dane.ns.cloudflare.com, jasmine.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`dane.ns.cloudflare.com dns.cloudflare.co`

📌 Glue Records Collected

Total: 12

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

Analysis

Hierarchy

The parent of www.281u.com is 281u.com.

IP Addresses

281u.com maps to four IP numbers: 2606:4700:3031::6815:2f7d, 2606:4700:3035::ac43:93a5, 104.21.47.125 and 172.67.147.165.

Other host names, for instance odemx.de, wiozoobo.ru.com, actamedicainternational.com, tjfangxinyuan.com and www.dreamcheeky.com share IP numbers with 281u.com.

Name Servers

Two name servers dane.ns.cloudflare.com and jasmine.ns.cloudflare.com handle delegation for 281u.com.

281u.com uses the same name server setup as other domains, for example n917.com, 507j.com, recrm.ru, messe-hostess-agentur.de and 978f.com.

281u.com partially shares name servers with other domains; examples include ponisha.net, wtfuq.net, ethansemone.com, kselect.co.kr and beacondefence.com.

these name servers are commonly used with the name servers miles.ns.cloudflare.com.

Host names with six IP numbers: dane.ns.cloudflare.com points to: 2606:4700:58::adf5:3b61, 2803:f800:50::6ca2:c161, 2a06:98c1:50::ac40:2161, 108.162.193.97, 172.64.33.97 and 173.245.59.97; jasmine.ns.cloudflare.com points to: 2606:4700:50::adf5:3aaa, 2803:f800:50::6ca2:c0aa, 2a06:98c1:50::ac40:20aa, 108.162.192.170, 172.64.32.170 and 173.245.58.170.

281u.com - robtex.com

281u.com

com

Subdomains

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

📌 Glue Records Collected

Analysis

Hierarchy

IP Addresses

Name Servers

`281u.com`

`com`