closecall.cz - robtex.com
closecall.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:d4f8🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::6815:17c2🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.23.194Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.212.248🇺🇸 Cloudflare172.67.208.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | sandra.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:2622🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sandra.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c222🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | sandra.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2222🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | sandra.ns.cloudflare.com | ||||||
| A | 108.162.194.34🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sandra.ns.cloudflare.com | ||||||
| A | 162.159.38.34Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sandra.ns.cloudflare.com | ||||||
| A | 172.64.34.34🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sandra.ns.cloudflare.com | ||||||
| NS | zahir.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2c91🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zahir.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c391🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | zahir.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2391🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | zahir.ns.cloudflare.com | ||||||
| A | 108.162.195.145🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zahir.ns.cloudflare.com | ||||||
| A | 162.159.44.145Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zahir.ns.cloudflare.com | ||||||
| A | 172.64.35.145🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | zahir.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.23.194, 172.67.212.248 | ||||||
| IPv6 | 2606:4700:3031::ac43:d4f8, 2606:4700:3037::6815:17c2 | ||||||
| SOA | sandra.ns.cloudflare.comdns@cloudflare.com serial=2396494521 | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1774385236 | ||||||
rank #4657 in the tld
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSsandra.ns.cloudflare.com2026-03-20 → 2026-03-24 · 2 obs
● 2026-03-24 21:13:04
●NSzahir.ns.cloudflare.com2026-03-20 → 2026-03-24 · 2 obs
● 2026-03-24 21:13:04
●A104.21.23.1942026-03-20 → 2026-03-24 · 2 obs
● 2026-03-24 21:13:04
●A172.67.212.2482026-03-20 → 2026-03-24 · 2 obs
● 2026-03-24 21:13:04
●A2606:4700:3031::ac43:d4f82026-03-20 → 2026-03-24 · 2 obs
● 2026-03-24 21:13:04
●A2606:4700:3037::6815:17c22026-03-20 → 2026-03-24 · 2 obs
● 2026-03-24 21:13:04
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| closecall.cz | zahir.ns.cloudflare.com, sandra.ns.cloudflare.com | - |
✅ Authoritative Response
Server:162.159.44.145
NS records: zahir.ns.cloudflare.com, sandra.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for closecall.cz (unsigned zone)
⏱️ Timing
Total: 794ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.23.194, 172.67.212.248 |
| AAAA | 2 | 2606:4700:3031::ac43:d4f8, 2606:4700:3037::6815:17c2 |
| NS | 2 | sandra.ns.cloudflare.com, zahir.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | sandra.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
closecall.cz maps to four IP numbers: 2606:4700:3031::ac43:d4f8, 2606:4700:3037::6815:17c2, 104.21.23.194 and 172.67.212.248.
other host names include sidjain.me, andersononline.org, www.thrivehere.org, passagensaereas.me and jeffersoncityheadlines.com; they share IP numbers with closecall.cz.
Name Servers
Two name servers sandra.ns.cloudflare.com and zahir.ns.cloudflare.com handle the delegation for closecall.cz.
closecall.cz shares the same name server setup as other domains, for instance kinosimka.ru.com, gii.uk.com, beach-insurance.uk.com, beinhard.uk.com and j88.sa.com.
closecall.cz at least partially shares name servers with other domains, for instance casinocorgibet.fr, fangwuanjie.com, sxwed.com, print-digital.info and portail-lbc.fr.
These name servers are commonly used with the following: rommy.ns.cloudflare.com, nelci.ns.cloudflare.com, jaime.ns.cloudflare.com and finley.ns.cloudflare.com.
Six IP addresses per host:
sandra.ns.cloudflare.com points to 2606:4700:50::a29f:2622, 2803:f800:50::6ca2:c222, 2a06:98c1:50::ac40:2222, 108.162.194.34, 162.159.38.34 and 172.64.34.34; zahir.ns.cloudflare.com points to 2606:4700:58::a29f:2c91, 2803:f800:50::6ca2:c391, 2a06:98c1:50::ac40:2391, 108.162.195.145, 162.159.44.145 and 172.64.35.145