`birou.com.cn`

DNSSEC	⚠️ Not signed
A	2606:4700:3032::6815:4690^{🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	2606:4700:3034::ac43:88bb^{🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	104.21.70.144^{Cloudflare104.21.64.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
A	172.67.136.187^{🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US} ✓ In HTTPS hints
NS	`crystal.ns.cloudflare.com` ⭐
		A	2606:4700:50::a29f:26ca^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c2ca^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`crystal.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:22ca^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`crystal.ns.cloudflare.com`
		A	108.162.194.202^{🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	162.159.38.202^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
		A	172.64.34.202^{🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`crystal.ns.cloudflare.com`
NS	`thaddeus.ns.cloudflare.com`
		A	2606:4700:58::a29f:2c7f^{🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thaddeus.ns.cloudflare.com`
		A	2803:f800:50::6ca2:c37f^{🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L}
			PTR	`thaddeus.ns.cloudflare.com`
		A	2a06:98c1:50::ac40:237f^{🇺🇸 Cloudflare2a06:98c1:50::/45}
			PTR	`thaddeus.ns.cloudflare.com`
		A	108.162.195.127^{🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thaddeus.ns.cloudflare.com`
		A	162.159.44.127^{Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thaddeus.ns.cloudflare.com`
		A	172.64.35.127^{🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US}
			PTR	`thaddeus.ns.cloudflare.com`
HTTPS	HTTP/3, HTTP/2 ✓ hints match
		IPv4 hints	104.21.70.144, 172.67.136.187
		IPv6 hints	2606:4700:3032::6815:4690, 2606:4700:3034::ac43:88bb
		ECH	X25519, HKDF-SHA256 + AES-128-GCM draft, id=59, name=cloudflare-ech.com
SOA	`crystal.ns.cloudflare.com`dns@cloudflare.com serial=2401192055

`com.cn`

	DNSSEC	⚠️ Not signed
	NS	`a.dns.cn` ⭐ ⚠️ Not in parent delegation
	NS	`b.dns.cn` ⚠️ Not in parent delegation
	NS	`c.dns.cn` ⚠️ Not in parent delegation
	NS	`cns.cernet.net` ⚠️ Not in parent delegation
	NS	`d.dns.cn` ⚠️ Not in parent delegation
	NS	`e.dns.cn` ⚠️ Not in parent delegation
	SOA	`a.dns.cn`root@cnnic.cn serial=2030510385

WOT: NOT_SAFE (20/100)

Same first word

birou.it

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DNS History

15 records (6 active, 9 former)

●NScrystal.ns.cloudflare.com2026-04-10 → 2026-04-12 · 2 obs

● 2026-04-10 20:49:16
● 2026-04-12 07:48:24

●NSthaddeus.ns.cloudflare.com2026-04-10 → 2026-04-12 · 2 obs

● 2026-04-10 20:49:16
● 2026-04-12 07:48:24

○A103.13.73.1552017-03-22 → 2017-03-22 · 4 obs

○ 2016-07-17 05:03:36
● 2017-03-22 03:26:32
○ 2019-04-11 20:58:06
○ 2026-04-12 07:48:24

○A103.13.73.1602017-03-22 → 2017-03-22 · 4 obs

○ 2016-07-17 05:03:36
● 2017-03-22 03:26:32
○ 2019-04-11 20:58:06
○ 2026-04-12 07:48:24

●A104.21.70.1442026-04-10 → 2026-04-12 · 3 obs

○ 2019-04-11 20:58:06
● 2026-04-10 20:49:16
● 2026-04-12 07:48:24

●A172.67.136.1872026-04-10 → 2026-04-12 · 3 obs

○ 2019-04-11 20:58:06
● 2026-04-10 20:49:16
● 2026-04-12 07:48:24

○A183.111.157.682017-03-22 → 2017-03-22 · 4 obs

○ 2016-07-17 05:03:36
● 2017-03-22 03:26:32
○ 2019-04-11 20:58:06
○ 2026-04-12 07:48:24

○A183.111.157.922017-03-22 → 2017-03-22 · 4 obs

○ 2016-07-17 05:03:36
● 2017-03-22 03:26:32
○ 2019-04-11 20:58:06
○ 2026-04-12 07:48:24

●A2606:4700:3032::6815:46902026-04-10 → 2026-04-12 · 3 obs

○ 2019-04-11 20:58:06
● 2026-04-10 20:49:16
● 2026-04-12 07:48:24

●A2606:4700:3034::ac43:88bb2026-04-10 → 2026-04-12 · 3 obs

○ 2019-04-11 20:58:06
● 2026-04-10 20:49:16
● 2026-04-12 07:48:24

○A42.200.35.1392016-07-17 → 2016-07-17 · 4 obs

○ 2016-03-08 07:15:34
● 2016-07-17 05:03:36
○ 2017-03-22 03:26:32
○ 2026-04-12 07:48:24

○A47.90.20.172016-07-17 → 2016-07-17 · 4 obs

○ 2016-03-08 07:15:34
● 2016-07-17 05:03:36
○ 2017-03-22 03:26:32
○ 2026-04-12 07:48:24

○A64.62.224.2532015-07-20 → 2016-03-08 · 4 obs

● 2015-07-20 10:19:20
● 2016-03-08 07:15:34
○ 2016-07-17 05:03:36
○ 2026-04-12 07:48:24

○CNAME22pk.lncdn.com2017-03-22 → 2017-03-22 · 3 obs

● 2017-03-22 03:26:32
○ 2019-04-11 20:58:06
○ 2026-04-12 07:48:24

○CNAMEpark.jinmi.com2019-04-11 → 2019-04-11 · 4 obs

○ 2017-03-22 03:26:32
● 2019-04-11 20:58:06
○ 2026-04-10 20:49:16
○ 2026-04-12 07:48:24

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
cn	a.dns.cn, b.dns.cn, c.dns.cn, d.dns.cn...	-
birou.com.cn	crystal.ns.cloudflare.com, thaddeus.ns.cloudflare.com	-

✅ Authoritative Response

Server:162.159.44.127

NS records: crystal.ns.cloudflare.com, thaddeus.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for birou.com.cn (unsigned zone)

⏱️ Timing

Total: 833ms | Queries: -

📄 Records

Type	Count	Sample Data
A	2	`104.21.70.144, 172.67.136.187`
AAAA	2	`2606:4700:3032::6815:4690, 2606:4700:3034::ac43:88bb`
NS	2	`crystal.ns.cloudflare.com, thaddeus.ns.cloudflare.com`
HTTPS	1	`{"priority":1,"target":".","alpn":["h3",`
SOA	1	`crystal.ns.cloudflare.com dns.cloudflare`

Analysis

IP Addresses

birou.com.cn points to four IP numbers: 2606:4700:3032::6815:4690, 2606:4700:3034::ac43:88bb, 104.21.70.144 and 172.67.136.187.

Other host names, for instance notaryofficehub.best, www.harvestlife.org, fungamesarena.com, billwu.me and link1.tahunmenang.com share IP numbers with birou.com.cn.

Name Servers

birou.com.cn is delegated to two name servers: crystal.ns.cloudflare.com and thaddeus.ns.cloudflare.com.

birou.com.cn uses the same name server setup as other domains, for instance 55kkxx.com, 80clean.com, el-asia.com, yzrsh.com and htsltq.com.

birou.com.cn shares name servers with other domains at least partially, for instance 123xslot.com, wotoon.com, appletotob.com, filme(0x787878).mobi and cgyqxj.com.

these name servers are commonly used together with apollo.ns.cloudflare.com and milan.ns.cloudflare.com.

Host names with six IP numbers: crystal.ns.cloudflare.com points to 2606:4700:50::a29f:26ca, 2803:f800:50::6ca2:c2ca, 2a06:98c1:50::ac40:22ca, 108.162.194.202, 162.159.38.202 and 172.64.34.202; thaddeus.ns.cloudflare.com points to 2606:4700:58::a29f:2c7f, 2803:f800:50::6ca2:c37f, 2a06:98c1:50::ac40:237f, 108.162.195.127, 162.159.44.127 and 172.64.35.127.

birou.com.cn - robtex.com

birou.com.cn

com.cn

Same first word

Similar names

DNS History

🔍 DNS Trace

📋 Delegation Chain

✅ Authoritative Response

🔒 DNSSEC Status

⏱️ Timing

📄 Records

Analysis

IP Addresses

Name Servers

`birou.com.cn`

`com.cn`