`fsmailbox.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3035::6815:596e^{🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3037::ac43:8cd9^{🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.89.110^{Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.140.217^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`carrera.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26e7^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carrera.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2e7^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`carrera.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22e7^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`carrera.ns.cloudflare.com`
		A	108.162.194.231^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carrera.ns.cloudflare.com`
		A	162.159.38.231^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carrera.ns.cloudflare.com`
		A	172.64.34.231^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`carrera.ns.cloudflare.com`
NS	`jim.ns.cloudflare.com`
		A	2606:4700:58::adf5:3b7d^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c17d^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`jim.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:217d^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`jim.ns.cloudflare.com`
		A	108.162.193.125^{🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
		A	172.64.33.125^{🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
		A	173.245.59.125^{🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`jim.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4	104.21.89.110, 172.67.140.217
		IPv6	2606:4700:3035::6815:596e, 2606:4700:3037::ac43:8cd9
SOA	`carrera.ns.cloudflare.com`dns@cloudflare.com serial=2400079506

`cn`

	DNSSEC	🔒 Signed (DS record present)
	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=2034592613

Same first word

fsmailbox.cn

DNS History

9 records (6 active, 3 former)

●NScarrera.ns.cloudflare.com2026-03-18 → 2026-03-27 · 3 obs

○ 2018-06-16 08:42:34
● 2026-03-18 18:37:46
● 2026-03-27 08:04:44

●NSjim.ns.cloudflare.com2026-03-18 → 2026-03-27 · 3 obs

○ 2018-06-16 08:42:34
● 2026-03-18 18:37:46
● 2026-03-27 08:04:44

○NSns1.51dns.com2015-06-02 → 2017-01-25 · 4 obs

● 2015-06-02 09:01:22
● 2017-01-25 14:56:28
○ 2018-06-16 08:42:34
○ 2026-03-27 08:04:44

○NSns2.51dns.com2015-06-02 → 2016-04-27 · 4 obs

● 2015-06-02 09:01:22
● 2016-04-27 19:04:58
○ 2017-01-25 14:56:28
○ 2026-03-27 08:04:44

●A104.21.89.1102026-03-18 → 2026-03-27 · 3 obs

○ 2018-06-16 08:42:34
● 2026-03-18 18:37:46
● 2026-03-27 08:04:44

○A104.238.193.622015-06-02 → 2017-01-25 · 4 obs

● 2015-06-02 09:01:22
● 2017-01-25 14:56:28
○ 2018-06-16 08:42:34
○ 2026-03-27 08:04:44

●A172.67.140.2172026-03-18 → 2026-03-27 · 3 obs

○ 2018-06-16 08:42:34
● 2026-03-18 18:37:46
● 2026-03-27 08:04:44

●A2606:4700:3035::6815:596e2026-03-18 → 2026-03-27 · 3 obs

○ 2018-06-16 08:42:34
● 2026-03-18 18:37:46
● 2026-03-27 08:04:44

●A2606:4700:3037::ac43:8cd92026-03-18 → 2026-03-27 · 3 obs

○ 2018-06-16 08:42:34
● 2026-03-18 18:37:46
● 2026-03-27 08:04:44

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn...	-
fsmailbox.cn	jim.ns.cloudflare.com, carrera.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.38.231

NS records: jim.ns.cloudflare.com, carrera.ns.cloudflare.com

🔒 DNSSEC Status

❌ Bogus (DNSSEC validation failed)

Validation error at fsmailbox.cn: Error: DNS query timeout: 203.119.29.1 for DS fsmailbox.cn

⏱️ Timing

Total: 4214ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.89.110, 172.67.140.217`
AAAA	2	`2606:4700:3037::ac43:8cd9, 2606:4700:3035::6815:596e`
NS	2	`carrera.ns.cloudflare.com, jim.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`carrera.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

fsmailbox.cn resolves to four IP numbers: 2606:4700:3035::6815:596e, 2606:4700:3037::ac43:8cd9, 104.21.89.110 and 172.67.140.217.

Other host names such as cdpfb.com, bolkanser.ru, kwanho.com.au, lbrz.co and www.valentinasjewels.com share IPs with fsmailbox.cn.

Name Servers

fsmailbox.cn is delegated to two name servers: carrera.ns.cloudflare.com and jim.ns.cloudflare.com.

fsmailbox.cn shares the same name server setup as thejianfei.cn, yp676.cn, ygky888.com, yl0759.com and desktopshow.cn.

fsmailbox.cn at least partially shares name servers with other domains, for instance unitedmirrorandglassllp.com, orszulak.net, kosmos.at, mondi.group and moviesnake.io.

these name servers are often used in conjunction with the name servers jason.ns.cloudflare.com.

Host names with six IP numbers:

carrera.ns.cloudflare.com points to 2606:4700:50::a29f:26e7, 2803:f800:50::6ca2:c2e7, 2a06:98c1:50::ac40:22e7, 108.162.194.231, 162.159.38.231 and 172.64.34.231.

jim.ns.cloudflare.com points to 2606:4700:58::adf5:3b7d, 2803:f800:50::6ca2:c17d, 2a06:98c1:50::ac40:217d, 108.162.193.125, 172.64.33.125 and 173.245.59.125.

fsmailbox.cn - robtex.com

fsmailbox.cn

cn

Same first word

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`fsmailbox.cn`

`cn`