`4of.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:5fd5^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3033::ac43:94a0^{🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.95.213^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.148.160^{🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`felicity.ns.cloudflare.com` ⭐
		A	2606:4700:58::a29f:2cd4^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felicity.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c3d4^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`felicity.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:23d4^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`felicity.ns.cloudflare.com`
		A	108.162.195.212^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felicity.ns.cloudflare.com`
		A	162.159.44.212^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felicity.ns.cloudflare.com`
		A	172.64.35.212^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`felicity.ns.cloudflare.com`
NS	`monroe.ns.cloudflare.com`
		A	2606:4700:50::a29f:2699^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`monroe.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c299^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`monroe.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:2299^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`monroe.ns.cloudflare.com`
		A	108.162.194.153^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`monroe.ns.cloudflare.com`
		A	162.159.38.153^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`monroe.ns.cloudflare.com`
		A	172.64.34.153^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`monroe.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.95.213, 172.67.148.160
		IPv6	2606:4700:3032::6815:5fd5, 2606:4700:3033::ac43:94a0
SOA	`felicity.ns.cloudflare.com`dns@cloudflare.com serial=2396365298

`cn`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.cn` ⭐
	NS	`b.dns.cn`
	NS	`c.dns.cn`
	NS	`d.dns.cn`
	NS	`e.dns.cn`
	NS	`ns.cernet.net` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2034546407

Same first word

4of.ru

4of.cn

4of.net

4of.de

4of.com

4of.us

Similar names

fo4.org

4fo.com

o4f.com

fo4.us

o4f.at

f4o.org

4fo.de

fo4.ru

f4o.nl

o4f.co.uk

o4f.org

fo4.de

f4o.com

f4o.de

fo4.cn

f4o.net

o4f.de

of4.com

of4.de

4fo.ch

fo4.net

fo4.com

DNS History

15 records (6 active, 9 former)

○NSdns23.hichina.com2021-10-01 → 2021-10-01 · 3 obs

● 2021-10-01 20:59:08
○ 2026-02-16 03:24:18
○ 2026-03-23 22:41:06

○NSdns24.hichina.com2021-10-01 → 2021-10-01 · 3 obs

● 2021-10-01 20:59:08
○ 2026-02-16 03:24:18
○ 2026-03-23 22:41:06

●NSfelicity.ns.cloudflare.com2026-02-16 → 2026-03-23 · 3 obs

○ 2021-10-01 20:59:08
● 2026-02-16 03:24:18
● 2026-03-23 22:41:06

●NSmonroe.ns.cloudflare.com2026-02-16 → 2026-03-23 · 3 obs

○ 2021-10-01 20:59:08
● 2026-02-16 03:24:18
● 2026-03-23 22:41:06

○MXmail.skrimple.com2015-08-04 → 2017-08-23 · 4 obs

● 2015-08-04 18:58:54
● 2017-08-23 03:30:58
○ 2021-10-01 20:59:08
○ 2026-03-23 22:41:06

○A103.232.215.1382017-08-23 → 2017-08-23 · 4 obs

○ 2016-12-05 05:08:10
● 2017-08-23 03:30:58
○ 2021-10-01 20:59:08
○ 2026-03-23 22:41:06

○A103.51.144.812016-11-27 → 2016-12-05 · 5 obs

○ 2016-06-11 12:07:16
● 2016-11-27 04:14:52
● 2016-12-05 05:08:10
○ 2017-08-23 03:30:58
○ 2026-03-23 22:41:06

●A104.21.95.2132026-02-16 → 2026-03-23 · 3 obs

○ 2021-10-01 20:59:08
● 2026-02-16 03:24:18
● 2026-03-23 22:41:06

●A172.67.148.1602026-02-16 → 2026-03-23 · 3 obs

○ 2021-10-01 20:59:08
● 2026-02-16 03:24:18
● 2026-03-23 22:41:06

○A184.105.178.892016-06-11 → 2016-06-11 · 4 obs

○ 2016-03-03 01:30:54
● 2016-06-11 12:07:16
○ 2016-11-27 04:14:52
○ 2026-03-23 22:41:06

○A198.12.15.2442015-08-04 → 2015-08-04 · 3 obs

● 2015-08-04 18:58:54
○ 2015-11-26 01:53:48
○ 2026-03-23 22:41:06

●A2606:4700:3032::6815:5fd52026-02-16 → 2026-03-23 · 3 obs

○ 2021-10-01 20:59:08
● 2026-02-16 03:24:18
● 2026-03-23 22:41:06

●A2606:4700:3033::ac43:94a02026-02-16 → 2026-03-23 · 3 obs

○ 2021-10-01 20:59:08
● 2026-02-16 03:24:18
● 2026-03-23 22:41:06

○A65.19.157.2352015-11-26 → 2016-03-03 · 5 obs

○ 2015-08-04 18:58:54
● 2015-11-26 01:53:48
● 2016-03-03 01:30:54
○ 2016-06-11 12:07:16
○ 2026-03-23 22:41:06

○A72.11.140.1792021-10-01 → 2021-10-01 · 4 obs

○ 2017-08-23 03:30:58
● 2021-10-01 20:59:08
○ 2026-02-16 03:24:18
○ 2026-03-23 22:41:06

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
4of.cn	monroe.ns.cloudflare.com, felicity.ns.cloudflare.com	-

✅ Authoritative Response

Server:172.64.34.153

NS records: monroe.ns.cloudflare.com, felicity.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 4of.cn (unsigned zone)

⏱️ Timing

Total: 707ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.95.213, 172.67.148.160`
AAAA	2	`2606:4700:3033::ac43:94a0, 2606:4700:3032::6815:5fd5`
NS	2	`felicity.ns.cloudflare.com, monroe.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`felicity.ns.cloudflare.com dns.cloudflar`

Analysis

IP Addresses

4of.cn points to four IP numbers: 2606:4700:3032::6815:5fd5, 2606:4700:3033::ac43:94a0, 104.21.95.213 and 172.67.148.160.

Other host names, for instance hollymoviehd-official.com, syxdmm.com, h1ln.info, www.wqlpb.com and pocket.abrahao.com.br share IP numbers with 4of.cn.

Name Servers

4of.cn's delegation is to two name servers felicity.ns.cloudflare.com and monroe.ns.cloudflare.com.

4of.cn shares the same name server configuration as other domains, such as ahdscw.com, mixiya.cn, ncgtl.com, hndhbc.com and raviks.com.

4of.cn at least partially shares its name servers with other domains, for instance digivixo.site, personalfinanceplaybook.com, myhermeseu.top, studyright.net and 212fu.com.

these name servers are commonly used together with guss.ns.cloudflare.com, rodrigo.ns.cloudflare.com, chad.ns.cloudflare.com and jo.ns.cloudflare.com.

Host names with six IP numbers:

felicity.ns.cloudflare.com points to: 2606:4700:58::a29f:2cd4, 2803:f800:50::6ca2:c3d4, 2a06:98c1:50::ac40:23d4, 108.162.195.212, 162.159.44.212 and 172.64.35.212.

monroe.ns.cloudflare.com points to: 2606:4700:50::a29f:2699, 2803:f800:50::6ca2:c299, 2a06:98c1:50::ac40:2299, 108.162.194.153, 162.159.38.153 and 172.64.34.153.

4of.cn - robtex.com

4of.cn

cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`4of.cn`

`cn`