coalu.cn - robtex.com

coalu.cn

DNSSEC⚠️ Not signed
A2606:4700:3030::ac43:9d5e🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3036::6815:882🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.8.130Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.157.94🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSezra.ns.cloudflare.com ⭐
A2606:4700:58::a29f:2c0f🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRezra.ns.cloudflare.com
A2803:f800:50::6ca2:c30f🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRezra.ns.cloudflare.com
A2a06:98c1:50::ac40:230f🇺🇸 Cloudflare2a06:98c1:50::/45
PTRezra.ns.cloudflare.com
A108.162.195.15🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRezra.ns.cloudflare.com
A162.159.44.15Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRezra.ns.cloudflare.com
A172.64.35.15🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRezra.ns.cloudflare.com
NSmarlowe.ns.cloudflare.com
A2606:4700:50::a29f:26d4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmarlowe.ns.cloudflare.com
A2803:f800:50::6ca2:c2d4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRmarlowe.ns.cloudflare.com
A2a06:98c1:50::ac40:22d4🇺🇸 Cloudflare2a06:98c1:50::/45
PTRmarlowe.ns.cloudflare.com
A108.162.194.212🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmarlowe.ns.cloudflare.com
A162.159.38.212Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmarlowe.ns.cloudflare.com
A172.64.34.212🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRmarlowe.ns.cloudflare.com
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.8.130, 172.67.157.94
IPv6 hints2606:4700:3030::ac43:9d5e, 2606:4700:3036::6815:882
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=215, name=cloudflare-ech.com
SOAezra.ns.cloudflare.comdns@cloudflare.com serial=2400696270

cn

DNSSEC🔒 Signed (DS record present)
NSa.dns.cn ⭐
NSb.dns.cn
NSc.dns.cn
NSd.dns.cn
NSe.dns.cn
NSns.cernet.net ⚠️ Not in parent delegation
SOAa.dns.cnroot@cnnic.cn serial=2034707504
rank #478575 globally
rank #7927 in the tld

Same first word

coalu.cn
coalu.com

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DNS History

8 records (6 active, 2 former)

NSezra.ns.cloudflare.commarlowe.ns.cloudflare.comamanda.ns.cloudflare.comtosana.ns.cloudflare.comA104.21.8.130172.67.157.942606:4700:3030::ac43:9d5e2606:4700:3036::6815:882
○NSamanda.ns.cloudflare.com2026-02-17 → 2026-03-30 · 4 obs
● 2026-02-17 14:26:26
● 2026-03-30 19:58:46
○ 2026-04-20 20:32:08
○ 2026-04-24 15:20:06
●NSezra.ns.cloudflare.com2026-04-20 → 2026-04-24 · 3 obs
○ 2026-03-30 19:58:46
● 2026-04-20 20:32:08
● 2026-04-24 15:20:06
●NSmarlowe.ns.cloudflare.com2026-04-20 → 2026-04-24 · 3 obs
○ 2026-03-30 19:58:46
● 2026-04-20 20:32:08
● 2026-04-24 15:20:06
○NStosana.ns.cloudflare.com2026-02-17 → 2026-03-30 · 4 obs
● 2026-02-17 14:26:26
● 2026-03-30 19:58:46
○ 2026-04-20 20:32:08
○ 2026-04-24 15:20:06
●A104.21.8.1302026-02-17 → 2026-04-24 · 5 obs
● 2026-02-17 14:26:26
● 2026-03-19 11:30:14
○ 2026-03-30 19:58:46
● 2026-04-20 20:32:08
● 2026-04-24 15:20:06
●A172.67.157.942026-02-17 → 2026-04-24 · 5 obs
● 2026-02-17 14:26:26
● 2026-03-19 11:30:14
○ 2026-03-30 19:58:46
● 2026-04-20 20:32:08
● 2026-04-24 15:20:06
●A2606:4700:3030::ac43:9d5e2026-02-17 → 2026-04-24 · 5 obs
● 2026-02-17 14:26:26
● 2026-03-19 11:30:14
○ 2026-03-30 19:58:46
● 2026-04-20 20:32:08
● 2026-04-24 15:20:06
●A2606:4700:3036::6815:8822026-02-17 → 2026-04-24 · 5 obs
● 2026-02-17 14:26:26
● 2026-03-19 11:30:14
○ 2026-03-30 19:58:46
● 2026-04-20 20:32:08
● 2026-04-24 15:20:06

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cnd.dns.cn, c.dns.cn, a.dns.cn, b.dns.cn...-
coalu.cnezra.ns.cloudflare.com, marlowe.ns.cloudflare.com-

✅ Authoritative Response

Server:108.162.194.212

NS records: ezra.ns.cloudflare.com, marlowe.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for coalu.cn (unsigned zone)

⏱️ Timing

Total: 1027ms | Queries: -

📄 Records

TypeCountSample Data
A2172.67.157.94, 104.21.8.130
AAAA22606:4700:3030::ac43:9d5e, 2606:4700:3036::6815:882
NS2ezra.ns.cloudflare.com, marlowe.ns.cloudflare.com
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1ezra.ns.cloudflare.com dns.cloudflare.co

Analysis

IP Addresses

coalu.cn points to four IP numbers: 2606:4700:3030::ac43:9d5e, 2606:4700:3036::6815:882, 104.21.8.130 and 172.67.157.94.

Other host names including www.picochip.com, clientesnfs.com, www.cardverify09901-booking.com, aaronix.com and rmiya.org share IP numbers with coalu.cn.

Name Servers

coalu.cn's delegation uses two name servers, ezra.ns.cloudflare.com and marlowe.ns.cloudflare.com.

coalu.cn shares the same name server setup as other domains, for example zfidf.cn, mrwfr.cn, utxnp.cn, dhomt.cn and knvsp.cn.

coalu.cn at least partially shares name servers with other domains, including stompstickers.com, eliteportables.com.au, qehockey.net, falconsgrup.com and hongsencable.cn.

these name servers are commonly used together with thea.ns.cloudflare.com, daniella.ns.cloudflare.com and piper.ns.cloudflare.com.

Host names with six IP numbers:

ezra.ns.cloudflare.com points to: 2606:4700:58::a29f:2c0f, 2803:f800:50::6ca2:c30f, 2a06:98c1:50::ac40:230f, 108.162.195.15, 162.159.44.15 and 172.64.35.15.

marlowe.ns.cloudflare.com points to: 2606:4700:50::a29f:26d4, 2803:f800:50::6ca2:c2d4, 2a06:98c1:50::ac40:22d4, 108.162.194.212, 162.159.38.212 and 172.64.34.212.