Sdn.cz
Server IP address resolved: Yes
Http response code: 200
Response time: 1.79 sec.
Last Checked: 03/13/2025
Sdn.cz attracts 42,966 unique visitors daily, generating 257,795 pageviews. The estimated value of sdn.cz is 371,333 USD. Each visitor views approximately 6.42 pages on average.
Sdn.cz is hosted by Seznam.cz, a.s. Check out other websites hosted by Seznam.cz, a.s.
See the list of other websites hosted by Seznam.cz, a.s.
Sdn.cz is registered with the .CZ top-level domain. Explore additional websites within the .CZ zone.
A recent examination on (December 06, 2024), indicates that sdn.cz has an expired wildcard SSL certificate issued by Let's Encrypt (expired on February 12, 2025). Click the "Refresh" button in the Safety Information section for updated SSL details. See the list of websites using SSL certificates issued by Let's Encrypt.
According to Google Safe Browsing and Symantec sdn.cz appears to be a safe domain.
Based on Google's Mobile-Friendly test, sdn.cz is not well optimized for mobile and tablet devices. Ensuring your site is mobile-friendly guarantees better performance across all devices, and improving the web page loading time could further enhance user experience.
not found

We gather website safety and reputation data and compare it with available third-party sources so we calculate own safety and trustworthiness rate based on information that we get.

Norton ConnectSafe evaluates sdn.cz for any unsafe and insecure content. The results are critical for families with young children.

SafeSearch is used as a parental control tool to filter out any inappropriate for your children search results on your devices: phones, tablets or personal computers.

Malware: not found.
Phishing: not detected.
Unwanted software: not found.
Harmfull applications: not found.
Google Safe Browsing notifies when websites are compromised by malicious actors. These protections work across Google products and provide a safer online experience.

McAfee assesses sdn.cz for a meaningful set of security threats. Featured dangers from annoying pop-ups to hidden Trojans, that can steal your identity, will be revealed. McAfee does not analyze sdn.cz for mature or inappropriate content, only security checks are evaluated.

The WOT calculates reputation of the sdn.cz. This reputation system receives ratings from users and information from third-party sources, assesses the sdn.cz for safety features and confirms, whether sdn.cz is suitable for children.
Domain | *.sdn.cz |
Issuer Organization | Let's Encrypt |
Issuer | R10 |
Algorithm | RSA-SHA256 |
Valid form | 11/14/2024 |
Expiration | 02/12/2025 |
Signed | Certificate is not self signed |
Additional Domains |
*.sdn.cz *.sdn.szn.cz sdn.cz sdn.szn.cz |
ASN ID: 43037
ASN Title: Seznam.cz, a.s.
Last Update: 02/09/2025
% This is the RIPE Database query service.
% The objects are in RPSL format.
%
% The RIPE Database is subject to Terms and Conditions.
% See http://www.ripe.net/db/support/db-terms-conditions.pdf
% Note: this output has been filtered.
% To receive output for a database update, use the "-B" flag.
% Information related to 'AS40960 - AS45055'
as-block: AS40960 - AS45055
descr: RIPE NCC ASN block
remarks: These AS Numbers are assigned to network operators in the RIPE NCC service region.
mnt-by: RIPE-NCC-HM-MNT
created: 2015-12-10T09:19:56Z
last-modified: 2015-12-10T09:19:56Z
source: RIPE
% Information related to 'AS43037'
% Abuse contact for 'AS43037' is 'abuse@seznam.cz'
aut-num: AS43037
as-name: SEZNAM-CZ
org: ORG-Sa508-RIPE
import: from AS9148 accept ANY
import: from AS5610 accept ANY
export: to AS9148 announce AS43037
export: to AS5610 announce AS43037
export: to AS5610 announce AS200600
admin-c: SZN5-RIPE
tech-c: SZN5-RIPE
status: ASSIGNED
mnt-by: RIPE-NCC-END-MNT
mnt-by: SEZNAM-MNT
created: 2007-05-29T08:00:03Z
last-modified: 2017-11-15T09:48:45Z
source: RIPE
organisation: ORG-SA508-RIPE
org-name: Seznam.cz, a.s.
org-type: LIR
address: Radlicka 3294/10
address: 15000
address: Prague 5
address: CZECH REPUBLIC
phone: +420234694111
fax-no: +420234694115
admin-c: PZ172-RIPE
admin-c: FEIX-RIPE
abuse-c: AD10910-RIPE
mnt-ref: RIPE-NCC-HM-MNT
mnt-ref: SEZNAM-MNT
mnt-by: RIPE-NCC-HM-MNT
mnt-by: SEZNAM-MNT
created: 2007-05-01T10:11:05Z
last-modified: 2017-10-30T14:44:17Z
source: RIPE # Filtered
role: Seznam.cz IT department
address: Radlicka 3294/10 150 00 Prague 5 Czech Republic
phone: +420 602 126 570
abuse-mailbox: abuse@seznam.cz
admin-c: PZ172-RIPE
tech-c: SZN11-RIPE
tech-c: SZN10-RIPE
nic-hdl: SZN5-RIPE
mnt-by: SEZNAM-MNT
created: 2007-05-06T15:50:27Z
last-modified: 2015-07-03T13:19:00Z
source: RIPE # Filtered
% This query was served by the RIPE Database Query Service version 1.91.2 (HEREFORD)
% (c) 2006-2021 CZ.NIC, z.s.p.o.
%
% Intended use of supplied data and information
%
% Data contained in the domain name register, as well as information
% supplied through public information services of CZ.NIC association,
% are appointed only for purposes connected with Internet network
% administration and operation, or for the purpose of legal or other
% similar proceedings, in process as regards a matter connected
% particularly with holding and using a concrete domain name.
%
% Full text available at:
% http://www.nic.cz/page/306/intended-use-of-supplied-data-and-information/
%
% See also a search service at http://www.nic.cz/whois/
%
%
% Whoisd Server Version: 3.12.2
% Timestamp: Wed Aug 10 01:54:30 2022
domain: sdn.cz
registrant: SB:SEZNAM-CZ-AS
admin-c: SEZNAM-CZ-AS-TECH
nsset: SEZNAM-NAMESERVERS
keyset: AUTO-IRAOBDGVQLT9V83VMGASTF2OG
registrar: REG-WEBGLOBE
status: Sponsoring registrar change forbidden
registered: 30.04.2009 19:32:40
changed: 09.11.2021 14:56:58
expire: 30.04.2023
contact: SB:SEZNAM-CZ-AS
org: Seznam.cz, a.s.
name: Seznam.cz, a.s.
address: Radlická 3294/10
address: Praha 5
address: 15000
address: CZ
registrar: REG-WEBGLOBE
created: 10.08.2001 22:13:00
changed: 27.11.2018 10:30:01
contact: SEZNAM-CZ-AS-TECH
org: Seznam.cz, a.s.
name: Vlastimil Pečínka
address: Radlická 3294/10
address: Praha 5
address: 150 00
address: CZ
registrar: REG-MOJEID
created: 27.02.2017 13:51:01
changed: 04.12.2018 15:48:58
nsset: SEZNAM-NAMESERVERS
nserver: ans.seznam.cz (77.75.74.80, 2a02:598:3333::3)
nserver: ams.seznam.cz (77.75.75.230, 2a02:598:4444::4)
tech-c: SB:SEZNAM-CZ-AS
registrar: REG-WEBGLOBE
created: 18.10.2007 18:01:01
changed: 11.12.2014 11:08:04
keyset: AUTO-IRAOBDGVQLT9V83VMGASTF2OG
dnskey: 257 3 13 d1nPP6+eFfOi4+wjgrumhl9uPAHN2xOTfz9HgodYV4TLNvYAw4Inxd32Pu9npq7WF07Jq102DIztew/xAMbRUA==
tech-c: CZ-NIC
registrar: REG-CZNIC
created: 09.11.2021 14:56:58
contact: CZ-NIC
org: CZ.NIC, z.s.p.o.
name: CZ.NIC, z.s.p.o.
address: Milesovska 1136/5
address: Praha 3
address: 130 00
address: CZ
registrar: REG-CZNIC
created: 17.10.2008 12:08:21
changed: 15.05.2018 21:32:00
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