phonebook.cz
Domain report: WHOIS, DNS, hosting, SSL and safety. Checked .
Online · 200SafeSSL: 82 days left6 years old
70
phonebook.cz was registered on 22 Apr 2020 via Ascio Technologies inc. and the registry expiry is 21 Apr 2027. WHOIS data came from RDAP at https://rdap.nic.cz/domain/phonebook.cz.
phonebook.cz publishes 6 nameservers. DNSSEC is not signed.
phonebook.cz has 1 IPv4 address (185.185.216.245) and 1 IPv6 address (2a0b:6580::135). The geolocation database places 185.185.216.245 in Prague (Praha 4), Czechia.
The TLS certificate from YE1 is valid and has 82 days left (TLS 1.3). The homepage answered HTTP 200.
Tech detection named HSTS and Statcounter. The fingerprints ran on the homepage that was already downloaded.
No safety warning was recorded for phonebook.cz in the checks that ran.
Domain · RDAP/WHOIS
phonebook.cz was registered on 22 Apr 2020 via Ascio Technologies inc.. The registry returned 1 status value and 6 nameservers from https://rdap.nic.cz/domain/phonebook.cz.
| Registered | since 22 Apr 2020 |
|---|---|
| Created | 22 April 2020 |
| Updated | 27 September 2026 |
| Expires | 21 April 2027 |
| Registrar | Ascio Technologies inc. |
| Status | active |
| Nameservers | ns11.constellix.com, ns21.constellix.com, ns31.constellix.com, ns41.constellix.net, ns51.constellix.net, ns61.constellix.net |
| DNSSEC | no |
| Source | https://rdap.nic.cz/domain/phonebook.cz |
Nameserver ns11.constellix.com is published for phonebook.cz in the registration record from https://rdap.nic.cz/domain/phonebook.cz.
Nameserver ns21.constellix.com is published for phonebook.cz in the registration record from https://rdap.nic.cz/domain/phonebook.cz.
Nameserver ns31.constellix.com is published for phonebook.cz in the registration record from https://rdap.nic.cz/domain/phonebook.cz.
Nameserver ns41.constellix.net is published for phonebook.cz in the registration record from https://rdap.nic.cz/domain/phonebook.cz.
Nameserver ns51.constellix.net is published for phonebook.cz in the registration record from https://rdap.nic.cz/domain/phonebook.cz.
Nameserver ns61.constellix.net is published for phonebook.cz in the registration record from https://rdap.nic.cz/domain/phonebook.cz.
DNS
phonebook.cz has 2 address records, 0 mail exchangers and 6 nameservers, measured at 1.1.1.1:53.
| A | 185.185.216.245 |
|---|---|
| AAAA | 2a0b:6580::135 |
| NS | ns11.constellix.com, ns21.constellix.com, ns31.constellix.com, ns41.constellix.net, ns51.constellix.net, ns61.constellix.net |
| MX | — |
| SPF | absent |
| DMARC | absent |
| CAA | — |
| Wildcard | off |
| DNSSEC | not signed |
| Resolver | 1.1.1.1:53 |
IPv4 address 185.185.216.245 answers for phonebook.cz at resolver 1.1.1.1:53.
IPv6 address 2a0b:6580::135 answers for phonebook.cz at resolver 1.1.1.1:53.
Hosting and geo
phonebook.cz is placed in Prague (Praha 4), Czechia by the local geolocation database (db-ip).
| Address | 185.185.216.245 |
|---|---|
| Country | Czechia |
| City | Prague (Praha 4) |
| Source | db-ip |
SSL/TLS
The certificate for phonebook.cz is valid, with 82 days left and 1 subject alternative name. Source: tls:443.
| Issuer | YE1 |
|---|---|
| Subject | phonebook.cz |
| Valid from | 23 October 2026 |
| Valid until | 21 January 2027 |
| Days left | 82 |
| SAN count | 1 |
| Protocol | TLS 1.3 |
| Source | tls:443 |
Subject alternative names: phonebook.cz.
Tech stack
Tech detection checked the fetched homepage and named 2 products. Source: wappalyzergo.
- HSTS · Security
- Statcounter · Analytics
HSTS is filed under Security.
Statcounter is filed under Analytics.
On-page checks
The homepage returned HTTP 200 in 10 ms. The target title is 29 characters and the page has 1 H1 heading.
| Status | 200 |
|---|---|
| TTFB | 10 ms |
| Title length | 29 yes |
| Quoted title | "Phonebook.cz - Intelligence X" |
| Meta description | none no |
| H1 count | 1 |
| HSTS | yes yes |
| CSP | no |
| X-Frame-Options | — |
| Robots meta | — |
| Canonical | — |
| Language | — |
| Links | 11 |
| Images | 1 |
| Favicon | no |
The quoted title and meta description are measurements of the other site. They are not this page's title or description.
Security
Family DNS for phonebook.cz is clear, and URLhaus is clear. Source: family DNS and local lists.
| Family DNS | clear |
|---|---|
| URLhaus | clear |
| UT1 | — |
| Web Risk | not run |
| Source | family DNS and local lists |
| HSTS | yes |
| CSP | no |
Google Web Risk did not run. No API key is configured, and this report does not invent a clean result from that service.
Score breakdown
Availability 25 of 25. DNS answer plus a homepage status in the 2xx or 3xx range.
TLS 20 of 20. A valid certificate, with extra points when it has at least 14 days left.
DNS hygiene 0 of 20. SPF, DMARC, CAA, and DNSSEC are five points each.
Security headers 5 of 15. HSTS, CSP, and X-Frame-Options or CSP frame-ancestors.
Safety lists 15 of 15. Points only when the checks ran and came back clean. Unknown is not clean.
Domain age 5 of 5. Five points at one year, two points at 30 days.
Change history
- October 2026: geo city changed from empty to Prague (Praha 4).
- October 2026: geo country changed from empty to Czechia.
Questions
Is phonebook.cz safe?
The checks that ran did not produce a safety warning, and a score is not a promise that the site is safe.
Who hosts phonebook.cz?
phonebook.cz is placed in Prague (Praha 4), Czechia.
When does phonebook.cz expire?
phonebook.cz expires on 21 April 2027 according to https://rdap.nic.cz/domain/phonebook.cz.
Who owns phonebook.cz?
The registry did not return a person or a company for phonebook.cz. RDAP often redacts the registrant. The registrar on file is Ascio Technologies inc..
Sources
- RDAP source https://rdap.nic.cz/domain/phonebook.cz at 2026-10-30T14:26:15Z
- DNS source 1.1.1.1:53 at 2026-10-30T14:26:15Z
- TLS source tls:443 at 2026-10-30T14:26:15Z
- HTTP source https://phonebook.cz/ at 2026-10-30T14:26:15Z
- Tech source wappalyzergo at 2026-10-30T14:26:15Z
- Geo source db-ip at 2026-10-30T14:26:15Z
- Safety source family DNS and local lists at 2026-10-30T14:26:15Z
Related reports
No other indexable reports share this TLD, host, or registrar yet.
Owner of this site?
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How to read this report
The sentences under each heading are filled from the latest snapshot. If a collector had nothing to say, that sentence is left out. The target site's own title and meta description, when shown, are quoted as measurements. They are not this page's title. Change history only lists a difference between two snapshots, so the first check starts the clock and later edits are the history. A malware blocklist is the only reason the homepage body is skipped. That fact stays on the report. It does not by itself drop the page from the sitemap or from related-report links.