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Private lookups are not added to public searches, stored reports or change history. This does not remove a report that was already public. Your choice lasts for this browser session.
Who hosts jezdobre.cz?
Answer
www.jezdobre.cz uses the WebSupport s.r.o. network; the hosting company is unconfirmed.
Checked 2 hours ago from Cloudflare VIE in 1.6 s. This is a saved result.
What needs attention
Prioritized observations from this check. Review changes with whoever manages the website.
- Review
No DMARC record was found at this domain
A DMARC policy was not returned by this check. Parent-domain policy discovery and message authentication were not tested.
Next step: Check whether a parent policy applies; otherwise configure DMARC reporting, verify SPF/DKIM alignment, then choose an appropriate policy.
- Improve
No SPF record was found
This domain accepts mail, but no SPF policy was returned at the checked domain.
Next step: If this domain sends mail, publish the SPF policy recommended by its mail provider.
- Improve
Review browser security headers
Strict-Transport-Security, Content-Security-Policy, Clickjacking protection, X-Content-Type-Options, Referrer-Policy, Permissions-Policy did not meet the conservative header checks. This is not a complete security audit.
Next step: Review these headers with the site developer and test policy changes before enforcing them.
- Good to know
Only the network operator is identified
The visible IP network is known, but no hosting-specific evidence confirms the company or reseller serving the site.
Next step: Use the evidence as a network attribution and verify the hosting provider with the website owner if needed.
Evidence by layer
The company operating a network and the company selling the hosting can be different.
Network operators
WEBSUPPORT-SRO-SK-AS - WebSupport s.r.o., SK
Network ownership alone does not confirm the retail hosting provider.
How we know
- 37.9.175.212 belongs to AS51013 (WEBSUPPORT-SRO-SK-AS - WebSupport s.r.o., SK), reverse DNS ing.r4.websupport.cz
- 2a00:4b40:aaaa:2011::7 belongs to AS51013 (WEBSUPPORT-SRO-SK-AS - WebSupport s.r.o., SK)
Servers
The addresses the name points to and the networks that own them.
www.jezdobre.cz (where the site redirects)
- 37.9.175.212WebSupport s.r.o.
- 2a00:4b40:aaaa:2011::7WebSupport s.r.o.
jezdobre.cz (the address you entered)
- 37.9.175.212WebSupport s.r.o.
- 2a00:4b40:aaaa:2011::7WebSupport s.r.o.
Reachable over IPv6.
Website
What the site answered when we visited its home page.
- Status
- 200 OK
- Address
- https://www.jezdobre.cz/
- Page title
- Jezdobře
- HTTPS
- Yes
- HTTP/3
- Supported
- Response time
- 900 ms from Cloudflare VIE
Redirects (1)
- 301https://jezdobre.cz/
- 200https://www.jezdobre.cz/
Security headers
- Strict-Transport-Security
- Content-Security-Policy (too weak)
- Clickjacking protection
- X-Content-Type-Options
- Referrer-Policy
- Permissions-Policy
Built with
DNS
Who answers for the domain name, and its records.
- DNS provider
- websupport.cz
- Name servers
- ns1.websupport.cz
ns2.websupport.cz
ns3.websupport.eu - Zone
- jezdobre.cz
- DNSSEC
- Signed and valid
- Certificates
- Any certificate authority (no CAA record)
All DNS records (7)
| Type | Name | Value | TTL |
|---|---|---|---|
| A | jezdobre.cz | 37.9.175.212 | 3600 |
| AAAA | jezdobre.cz | 2a00:4b40:aaaa:2011::7 | 3600 |
| NS | jezdobre.cz | ns1.websupport.cz | 3600 |
| NS | jezdobre.cz | ns2.websupport.cz | 3600 |
| NS | jezdobre.cz | ns3.websupport.eu | 3600 |
| MX | jezdobre.cz | 10 mailin1.jezdobre.cz | 600 |
| MX | jezdobre.cz | 100 mailin2.jezdobre.cz | 600 |
Easy to spoof: SPF or DMARC is missing.
- Mailbox provider
- Own mail server (mailin1.jezdobre.cz)
- Mail servers
- 10 mailin1.jezdobre.cz
100 mailin2.jezdobre.cz - SPF
- Missing
- DMARC
- Missing
- MTA-STS
- Not enabled
Domain registration
- Registrar
- ACTIVE 24, s.r.o.
- Registered
- 27 May 2020 (6 years ago)
- Paid until
- 26 May 2028 (in 577 days)
- Last changed
- 9 Nov 2025
- Status
- Active
- DNSSEC at registry
- Yes
- Source
- rdap.nic.cz
Observed changes
A compact record of what changed between public checks. Rechecks happen only when someone requests them.
History starts with saved public observations. No earlier changes are inferred.
Something look wrong? Report an incorrect result
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