6645.cz - robtex.com

6645.cz

DNSSEC⚠️ Not signed
A103.248.136.95πŸ‡­πŸ‡° DIMENSION-1103.248.136.0/24 103.248.136.0/24
NSgrannbo.ns.cloudflare.com ⭐
A2606:4700:50::a29f:2696πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrannbo.ns.cloudflare.com
A2803:f800:50::6ca2:c296πŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRgrannbo.ns.cloudflare.com
A2a06:98c1:50::ac40:2296πŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRgrannbo.ns.cloudflare.com
A108.162.194.150πŸ‡ΊπŸ‡Έ Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrannbo.ns.cloudflare.com
A162.159.38.150Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrannbo.ns.cloudflare.com
A172.64.34.150πŸ‡ΊπŸ‡Έ Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRgrannbo.ns.cloudflare.com
NSnorm.ns.cloudflare.com
A2606:4700:58::adf5:3b86πŸ‡ΊπŸ‡Έ Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnorm.ns.cloudflare.com
A2803:f800:50::6ca2:c186πŸ‡¨πŸ‡· Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L
PTRnorm.ns.cloudflare.com
A2a06:98c1:50::ac40:2186πŸ‡ΊπŸ‡Έ Cloudflare2a06:98c1:50::/45
PTRnorm.ns.cloudflare.com
A108.162.193.134πŸ‡ΊπŸ‡Έ Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnorm.ns.cloudflare.com
A172.64.33.134πŸ‡ΊπŸ‡Έ Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnorm.ns.cloudflare.com
A173.245.59.134πŸ‡ΊπŸ‡Έ Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US
PTRnorm.ns.cloudflare.com
SOAgrannbo.ns.cloudflare.comdns@cloudflare.com serial=2408754150

cz

DNSSECπŸ”’ Signed (DS record present)
NSa.ns.nic.cz ⭐
NSb.ns.nic.cz
NSc.ns.nic.cz
NSd.ns.nic.cz
SOAa.ns.nic.czhostmaster@nic.cz serial=1786385842
⚠️ On DNS blocklist: tif

Same first word

Similar names

DNS History

4 records (3 active, 1 former)

NSgrannbo.ns.cloudflare.comnorm.ns.cloudflare.comA103.248.136.95212.18.111.98
●NSgrannbo.ns.cloudflare.com2026-07-26 β†’ 2026-08-10 Β· 2 obs
● 2026-07-26 20:14:54
● 2026-08-10 19:10:28
●NSnorm.ns.cloudflare.com2026-07-26 β†’ 2026-08-10 Β· 2 obs
● 2026-07-26 20:14:54
● 2026-08-10 19:10:28
●A103.248.136.952026-08-10 β†’ 2026-08-10 Β· 2 obs
β—‹ 2026-07-26 20:14:54
● 2026-08-10 19:10:28
β—‹A212.18.111.982026-07-26 β†’ 2026-07-26 Β· 2 obs
● 2026-07-26 20:14:54
β—‹ 2026-08-10 19:10:28

πŸ” DNS Trace

πŸ“‹ Delegation Chain

ZoneNameserversGlue
cza.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz-
6645.cznorm.ns.cloudflare.com, grannbo.ns.cloudflare.com-

βœ… Authoritative Response

Server:172.64.33.134

NS records: norm.ns.cloudflare.com, grannbo.ns.cloudflare.com

πŸ”’ DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for 6645.cz (unsigned zone)

⏱️ Timing

Total: 779ms | Queries: -

πŸ“„ Records

TypeCountSample Data
A1103.248.137.79
NS2grannbo.ns.cloudflare.com, norm.ns.cloudflare.com
SOA1grannbo.ns.cloudflare.com dns.cloudflare

Analysis

IP Addresses

6645.cz directs to one IP number, which is 103.248.136.95.

6645.cz shares its IP numbers with other host names, including gv(0x736578).enterprises, 3752.cz, h(0x736578)a.ch and 6872.cz.

Name Servers

The NS records for 6645.cz delegate to grannbo.ns.cloudflare.com and norm.ns.cloudflare.com.

6645.cz has the same name server delegation as a number of other domains, such as 75754.my, 4913.org, 6984.net and two more.

At least some of 6645.cz's name servers are shared with other domains, for example oloapi.shift4payments.com, northernlakesamateurradioclub.org, broughttoyouby.tv and two more.

These name servers tend to be deployed in combination with the name servers dexter.ns.cloudflare.com and lady.ns.cloudflare.com.

Host names resolving to 6 IP numbers:

grannbo.ns.cloudflare.com maps to 108.162.194.150, 162.159.38.150, 172.64.34.150 and 3 additional IP addresses.

norm.ns.cloudflare.com maps to 108.162.193.134, 172.64.33.134, 173.245.59.134 and 3 additional IP addresses.