Domain Intelligence Report
Gathering intelligence... (12/12)
DNS
WHOIS
Security
Email
DNSSEC
Threats
Deliverability
SSL/TLS
HTTP
Tech Stack
Subdomains
Archive
Safe
threat: mediumno attacks or spoofing
Up
HTTP 200reachable and responding
Right
Set up Page Watchit is what it is
Ready
51d aheadyou see what's coming
Outline
WHOIS
ZONER a. s. · registered 27 years ago · expires Oct 5, 2027
DNS
1 A · 1 MX · 2 NS · 1 SOA · 8 TXT
SSL/TLS
Let's Encrypt · TLSv1.3 · expires in 51d · 48 SANs
Email Auth
SPF ✓ · DKIM ✓ · DMARC ✗ (p=none)
DNSSEC
signed · valid chain of trust
Tech Stack
CDN: Cloudflare · Host: Microsoft Azure · Email: Microsoft 365
HTTP
2 redirect → 200 · HSTS ✗ · CSP ✗ · X-Frame ✗ · Nosniff ✗
Security
B (168/225) · 1 critical · 2 high
Threats
risk: medium
Deliverability
91% A (91/100 points) · 1 MX · 8 IPs · 3 issue(s)
Subdomains
0 found · 112 answered
Web Archive
first snapshot 2001-04-04 · 25y archived
DNS Recordschecked 3.5d ago
Details1 A · 1 MX · 2 NS · 1 SOA · 8 TXT
WHOISchecked 3.5d ago
DetailsThen vs Nownew
No card for this name. We compare then and now for domains that are in the top million and had an AboutUs page. That says nothing about this domain’s age or safety.
Check what it is now →SSL/TLSchecked 3.5d ago
DetailsValid certificate
Issuer: Let's Encrypt
Protocol: TLSv1.3
Expires in 51 days
48 SAN(s)
Securitychecked 3.5d ago
DetailsB
168/225
1 critical2 high
Weakest: Basic Security, Record Security
Email Authchecked 3.5d ago
DetailsSPFDKIMDMARC
Policy: none
DNSSECchecked 3.5d ago
DetailsValid chain of trust
Tech Stackchecked 3.5d ago
DetailsCloudflareMicrosoft AzureEmail: Microsoft 365Google Search Console
HTTP / Headerschecked 3.5d ago
Details2 redirect(s) → 200
HSTSCSPX-FrameNosniff
Threatschecked 3.5d ago
DetailsRisk: medium · score 0.6999999999999998
Zone census
Subdomainschecked 3.5d ago
Details0 found · 112 answered
Click a subdomain for its full report
Web Archivechecked 3.5d ago
DetailsFirst archived: 2001-04-04
~25 years of history
Deliverabilitychecked 3.5d ago
Details91%A
91/100 points · 3 issue(s)
1 MX · 8 IP(s)
Top fix: DMARC policy is none (monitor only)
IPv6
Measured 2026-11-04 21:02 UTC · aaaa.botD
The website has no IPv6.
planeo.cz has no IPv6 address published.
- ✗ planeo.cz: no IPv6 address
- ✓ www.planeo.cz answers (1 of 1)
- ✓ Mail: 1 of 1 servers have IPv6
- ✓ Nameservers: 2 of 2 have IPv6
Details: published addresses and what answered
| Name | Published address (AAAA) | Answers when we connect |
|---|---|---|
| planeo.cz | Publishedno IPv6 address published | Answers when we connectnothing to test |
| www.planeo.cz | Published2603:1061:14:41::1 | Answers when we connect✓ answers on 443 |
Publishedplaneo-cz.mail.protection.outlook.com | Answers when we connect✓ has IPv6 | |
| Nameservers | Publishedduke.ns.cloudflare.comteagan.ns.cloudflare.com | Answers when we connect✓ has IPv6✓ has IPv6 |
First measured 2026-11-04: no IPv6 publishedIf this changes, the date will appear here.
See where it lives on the IPv4 map →
Lineage
Our records: Jul 17, 2010 → Nov 4, 2026These dates are when our records begin, not when the domain was registered.
DNS provider
- active24.czJul – Aug 2010
- regzone.cz + regzone.de + regzone.infoFeb 2013 – Mar 2025
- CloudflareJun 2026
IPv6
- IPv6no IPv6 publishedFirst measured Nov 2026
What changed
- IPv6 first measured: no IPv6 published on Nov 4, 2026planeo.cz: no IPv6 published. Grade D. Measured by aaaa.bot, 2026-11-04 21:02 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
- DNS moved to Cloudflare between Mar 5, 2025 and Jun 18, 2026ns1.regzone.cz, ns1.regzone.de, ns1.regzone.info → duke.ns.cloudflare.com, teagan.ns.cloudflare.com. Old set last seen in WHOIS on 2025-03-05; new set first seen in WHOIS on 2026-06-18.
- DNS moved to regzone.cz + regzone.de + regzone.info between Aug 15, 2010 and Feb 27, 2013alfa.ns.active24.cz, beta.ns.active24.cz → ns1.regzone.cz, ns1.regzone.de, ns1.regzone.info. Old set last seen in WHOIS on 2010-08-15; new set first seen in WHOIS on 2013-02-27.
Solid bar: the stretch we observed that name. Dot: a single sighting. Dotted line: no record between sightings of the same name. Nothing is drawn between different names.
DNS provider, WHOIS snapshots: 33 WHOIS/RDAP snapshots that listed nameservers, 2010-07-17 to 2026-06-18 (who.is archive). Both sources feed one row per provider (hover a bar to see which); a change is placed between the nearest observations on either side, and where the two sources disagree, both are listed under What changed.
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Explore related
Registered in 1999 — the same year as akamai.net, office.com and akadns.net.