bookup.cz - robtex.com
bookup.cz
| DNSSEC | ⚠️ Not signed | ||||||
| A | 109.123.203.56🇨🇿 CASABLANCA-AS109.123.202.0/23 Casablanca INT | ||||||
| A | 217.11.245.45🇨🇿 KAORA217.11.245.0/24 Casablanca INT - SiC | ||||||
| NS | ns.sic.cz ⭐ | ||||||
| A | 81.0.208.253🇨🇿 CASABLANCA-AS81.0.208.0/23 Casablanca INT | ||||||
| PTR | ns.sic.cz | ||||||
| NS | sns.sic.cz | ||||||
| A | 91.103.163.80🇨🇿 KAORA91.103.160.0/21 Kaora, s.r.o. | ||||||
| PTR | sns.sic.cz | ||||||
| MX | mailserver.grandit.cz ⭐ | ||||||
| A | 109.123.203.23🇨🇿 CASABLANCA-AS109.123.202.0/23 Casablanca INT | ||||||
| PTR | mailserver.grandit.cz | ||||||
| TXT | v=spf1 a mx ip4:81.0.208.43 ip4:109.123.203.57 ~all | ||||||
| SOA | ns.sic.czwebmaster@sic.cz 2026-07-15 #1 | ||||||
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=1786763841 | ||||||
Same first word
bookup.io |
bookup.fr |
bookup.gr |
bookup.asia |
bookup.me |
bookup.de |
bookup.co |
bookup.com |
bookup.cz |
bookup.net |
bookup.com.tr |
bookup.no |
bookup.com.mx |
bookup.pl |
Similar names
DNS History
5 records (5 active, 0 former)
●MXmailserver.grandit.cz2026-05-18 → 2026-08-15 · 2 obs
● 2026-08-15 04:16:44
●A109.123.203.562026-05-18 → 2026-08-15 · 2 obs
● 2026-08-15 04:16:44
●A217.11.245.452026-05-18 → 2026-08-15 · 2 obs
● 2026-08-15 04:16:44
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| bookup.cz | ns.sic.cz, sns.sic.cz | 2 records |
✅ Authoritative Response
Server:91.103.163.80
NS records: ns.sic.cz, sns.sic.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bookup.cz (unsigned zone)
⏱️ Timing
Total: 1383ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 217.11.245.45, 109.123.203.56 |
| NS | 2 | ns.sic.cz, sns.sic.cz |
| MX | 1 | mailserver.grandit.cz (pri: 10) |
| TXT | 1 | v=spf1 a mx ip4:81.0.208.43 ip4:109.123. |
| SOA | 1 | ns.sic.cz webmaster.sic.cz |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns.sic.cz, sns.sic.cz)
Analysis
IP Addresses
bookup.cz directs to two IP numbers, 109.123.203.56 and 217.11.245.45
Name Servers
bookup.cz uses two name servers for its delegation: ns.sic.cz and sns.sic.cz.
bookup.cz shares its name server setup with other domains, including nesebar.cz, techo-uk.co.uk, headphones.cz and two others.
bookup.cz has at least partial name server overlap with other domains, such as idealspace.cz, eurobath.cz, financovaniaut.cz and two others.
It is common to find these name servers paired with the name servers ns1.sic.cz.
ns.sic.cz directs to 81.0.208.253 and sns.sic.cz directs to 91.103.163.80; each host name points to exactly one IP number.
Mail Servers
bookup.cz has one mail server: mailserver.grandit.cz.
bookup.cz shares the same mail server setup as other domains, including danone.cz, mailserver.grandit.cz, mopa.cz and two others.
mailserver.grandit.cz directs to just one IP number, 109.123.203.23.