bkb.cx - robtex.com

bkb.cx

DNSSEC⚠️ Not signed
A2606:4700:3030::6815:30f5🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A2606:4700:3032::ac43:8af4🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A104.21.48.245Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
A172.67.138.244🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints
NSelinore.ns.cloudflare.com ⭐
A2606:4700:50::adf5:3a99🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelinore.ns.cloudflare.com
A2803:f800:50::6ca2:c099🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRelinore.ns.cloudflare.com
A2a06:98c1:50::ac40:2099🇺🇸 Cloudflare2a06:98c1:50::/45
PTRelinore.ns.cloudflare.com
A108.162.192.153🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelinore.ns.cloudflare.com
A172.64.32.153🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelinore.ns.cloudflare.com
A173.245.58.153🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRelinore.ns.cloudflare.com
NSvalentin.ns.cloudflare.com
A2606:4700:58::a29f:2cce🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvalentin.ns.cloudflare.com
A2803:f800:50::6ca2:c3ce🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRvalentin.ns.cloudflare.com
A2a06:98c1:50::ac40:23ce🇺🇸 Cloudflare2a06:98c1:50::/45
PTRvalentin.ns.cloudflare.com
A108.162.195.206🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvalentin.ns.cloudflare.com
A162.159.44.206Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvalentin.ns.cloudflare.com
A172.64.35.206🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRvalentin.ns.cloudflare.com
MXmail.arcnode.xyz ⭐
A178.156.154.237🇩🇪 HETZNER-CLOUD2-AS178.156.154.0/24
PTRmail.arcnode.xyz
TXTv=spf1 include:_spf.smtp2go.com ~all
HTTPSHTTP/3, HTTP/2 ✓ hints match
IPv4 hints104.21.48.245, 172.67.138.244
IPv6 hints2606:4700:3030::6815:30f5, 2606:4700:3032::ac43:8af4
ECHX25519, HKDF-SHA256 + AES-128-GCM draft, id=108, name=cloudflare-ech.com
SOAelinore.ns.cloudflare.comdns@cloudflare.com serial=2403850334

cx

DNSSEC🔒 Signed (DS record present)
NSns.anycast.nic.cx ⭐
NSns1.anycastdns.cz
NSns2.anycastdns.cz
TXTGeneration Time: 1778421529
TXTGeneration Time ISO 8601: 2026-05-10 13:58:49
SOAns.anycast.nic.cxhostmaster@coccaregistry.org 2026-05-10 #5

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DNS History

7 records (7 active, 0 former)

NSelinore.ns.cloudflare.comvalentin.ns.cloudflare.comMXmail.arcnode.xyzA104.21.48.245172.67.138.2442606:4700:3030::6815:30f52606:4700:3032::ac43:8af4
●NSelinore.ns.cloudflare.com2026-04-14 → 2026-05-10 · 5 obs
● 2026-04-14 04:32:12
● 2026-05-01 06:36:00
○ 2026-05-10 12:57:18
● 2026-05-10 15:08:58
● 2026-05-10 15:09:00
●NSvalentin.ns.cloudflare.com2026-04-14 → 2026-05-10 · 5 obs
● 2026-04-14 04:32:12
● 2026-05-01 06:36:00
○ 2026-05-10 12:57:18
● 2026-05-10 15:08:58
● 2026-05-10 15:09:00
●MXmail.arcnode.xyz2026-05-01 → 2026-05-10 · 4 obs
● 2026-05-01 06:36:00
○ 2026-05-10 12:57:18
● 2026-05-10 15:08:58
● 2026-05-10 15:09:00
●A104.21.48.2452026-04-14 → 2026-05-10 · 5 obs
● 2026-04-14 04:32:12
● 2026-05-01 06:36:00
○ 2026-05-10 12:57:18
● 2026-05-10 15:08:58
● 2026-05-10 15:09:00
●A172.67.138.2442026-04-14 → 2026-05-10 · 5 obs
● 2026-04-14 04:32:12
● 2026-05-01 06:36:00
○ 2026-05-10 12:57:18
● 2026-05-10 15:08:58
● 2026-05-10 15:09:00
●A2606:4700:3030::6815:30f52026-04-14 → 2026-05-10 · 5 obs
● 2026-04-14 04:32:12
● 2026-05-01 06:36:00
○ 2026-05-10 12:57:18
● 2026-05-10 15:08:58
● 2026-05-10 15:09:00
●A2606:4700:3032::ac43:8af42026-04-14 → 2026-05-10 · 5 obs
● 2026-04-14 04:32:12
● 2026-05-01 06:36:00
○ 2026-05-10 12:57:18
● 2026-05-10 15:08:58
● 2026-05-10 15:09:00

🔍 DNS Trace

📋 Delegation Chain

ZoneNameserversGlue
cxns2.anycastdns.cz, ns1.anycastdns.cz, ns.anycast.nic.cx5 records
bkb.cxvalentin.ns.cloudflare.com, elinore.ns.cloudflare.com-

✅ Authoritative Response

Server:173.245.58.153

NS records: valentin.ns.cloudflare.com, elinore.ns.cloudflare.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for bkb.cx (unsigned zone)

⏱️ Timing

Total: 518ms | Queries: -

📄 Records

TypeCountSample Data
A2104.21.48.245, 172.67.138.244
AAAA22606:4700:3030::6815:30f5, 2606:4700:3032::ac43:8af4
NS2elinore.ns.cloudflare.com, valentin.ns.cloudflare.com
MX1mail.arcnode.xyz (pri: 10)
TXT1v=spf1 include:_spf.smtp2go.com ~all
HTTPS1{"priority":1,"target":".","alpn":["h3",
SOA1elinore.ns.cloudflare.com dns.cloudflare

📌 Glue Records Collected

Total: 5

In-bailiwick: 2 (ns.anycast.nic.cx, ns.anycast.nic.cx)

Out-of-bailiwick: 3 (ns2.anycastdns.cz, ns1.anycastdns.cz, ns1.anycastdns.cz)

Analysis

IP Addresses

bkb.cx maps to four IP numbers: 2606:4700:3030::6815:30f5, 2606:4700:3032::ac43:8af4, 104.21.48.245 and 172.67.138.244.

Other host names, for instance www.smartresearch.net, oilbymercury.com, ppi04cjr.ponpes.id, vnfo.pics and hotlead.es share IP numbers with bkb.cx.

Name Servers

Two name servers elinore.ns.cloudflare.com and valentin.ns.cloudflare.com are delegated to bkb.cx.

bkb.cx uses the same name server configuration as other domains, such as epaperdainikaikya.com, essayedge.com, dkrs.kz, resumeedge.com and ramalhosantos.com.

bkb.cx at least partially shares name servers with other domains such as acggw.me, 010005.com.cn, deromeiviaggi.it, dorasdoors.com and chml.co.uk.

These name servers are commonly used with katelyn.ns.cloudflare.com and marge.ns.cloudflare.com.

Host names with six IP numbers: Host name elinore.ns.cloudflare.com points to 2606:4700:50::adf5:3a99, 2803:f800:50::6ca2:c099, 2a06:98c1:50::ac40:2099, 108.162.192.153, 172.64.32.153 and 173.245.58.153; host name valentin.ns.cloudflare.com points to 2606:4700:58::a29f:2cce, 2803:f800:50::6ca2:c3ce, 2a06:98c1:50::ac40:23ce, 108.162.195.206, 162.159.44.206 and 172.64.35.206.

Mail Servers

bkb.cx is handled by a single mail server, mail.arcnode.xyz.

The mail server setup for bkb.cx matches that of other domains, for instance arcnode.xyz.

mail.arcnode.xyz points to one IP number: 178.156.154.237.