Domain Intelligence Report

jysk.cz

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Gathering intelligence... (12/12)

DNS

WHOIS

Security

DNSSEC

Threats

Deliverability

SSL/TLS

HTTP

Tech Stack

Subdomains

IPv6

Measured 2026-11-04 22:55 UTC · aaaa.bot

Website, mail and DNS all work over IPv6.

Both published IPv6 addresses accepted a connection when we tried them.

✓ jysk.cz answers (2 of 2 addresses)
✓ www.jysk.cz answers (2 of 2)
✓ Mail: 1 of 1 servers have IPv6
✓ Nameservers: 6 of 6 have IPv6

Details: published addresses and what answered

Loads over IPv6 with a valid certificate: HTTP 200.

Name	Published address (AAAA)	Answers when we connect
jysk.cz	Published`2600:1408:ec00:b::1730:cbb02600:1408:ec00:b::1727:ae95`	Answers when we connect✓ answers on 443✓ answers on 443
www.jysk.cz	Published`2600:1408:ec00:b::1730:cbb02600:1408:ec00:b::1727:ae95`	Answers when we connect✓ answers on 443✓ answers on 443
Mail	Published`mailbox.nmu.nu`	Answers when we connect✓ has IPv6
Nameservers	Published`a26-67.akam.neta5-65.akam.neta13-66.akam.neta18-64.akam.neta10-64.akam.neta1-160.akam.net`	Answers when we connect✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6

First measured with IPv6 on 2026-11-04Changes are recorded from here on, each with its date.

Full check on aaaa.bot →Permanent receipt 3zli-fhapV JSON

See where it lives on the IPv4 map →

Lineage

Our records: Sep 10, 2010 → Nov 4, 2026

Oldest registry snapshot we hold: 2026 · 0 renewals on record. These dates are when our records begin, not when the domain was registered.

DNS provider

Verisign
Sep 2010 – Aug 2011
domainnetwork.com + domainnetwork.se
Jun 2014
rrpproxy.net
Mar 2017 – Jul 2020
zaccodigitaltrustlabs.com + zaccodigitaltrustlabs.net + zaccodigitaltrustlabs.se + zaccodns.com + zaccodns.se
Sep 2020 – Sep 2021
Akamai
Dec 2021 – Jun 2026

IPv6

IPv6published, and answering
First measured Nov 2026

What changed

IPv6 first measured: published, and answering on Nov 4, 2026jysk.cz has 2 IPv6 addresses. Grade A. Measured by aaaa.bot, 2026-11-04 22:55 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
DNS moved to Akamai between Sep 22, 2021 and Dec 15, 2021dns1.zaccodigitaltrustlabs.com, dns2.zaccodigitaltrustlabs.net, dns3.zaccodigitaltrustlabs.se, dns4.zaccodigitaltrustlabs.se, ns1.zaccodns.com, ns2.zaccodns.se → a1-160.akam.net, a10-64.akam.net, a13-66.akam.net, a18-64.akam.net, a26-67.akam.net, a5-65.akam.net. Old set last seen in WHOIS on 2021-09-22; new set first seen in WHOIS on 2021-12-15.
DNS moved to zaccodigitaltrustlabs.com + zaccodigitaltrustlabs.net + zaccodigitaltrustlabs.se + zaccodns.com + zaccodns.se between Jul 1, 2020 and Sep 2, 2020ns1.rrpproxy.net, ns2.na.rrpproxy.net, ns2.rrpproxy.net → dns1.zaccodigitaltrustlabs.com, dns2.zaccodigitaltrustlabs.net, dns3.zaccodigitaltrustlabs.se, dns4.zaccodigitaltrustlabs.se, ns1.zaccodns.com, ns2.zaccodns.se. Old set last seen in WHOIS on 2020-07-01; new set first seen in WHOIS on 2020-09-02.
New nameservers at rrpproxy.net between Mar 5, 2017 and Feb 21, 2018ns1.rrpproxy.net, ns2.rrpproxy.net, ns3.rrpproxy.net → ns1.rrpproxy.net, ns2.na.rrpproxy.net, ns2.rrpproxy.net. Old set last seen in WHOIS on 2017-03-05; new set first seen in WHOIS on 2018-02-21.
DNS moved to rrpproxy.net between Jun 9, 2014 and Mar 5, 2017ns.domainnetwork.se, ns2.domainnetwork.se, ns3.domainnetwork.com → ns1.rrpproxy.net, ns2.rrpproxy.net, ns3.rrpproxy.net. Old set last seen in WHOIS on 2014-06-09; new set first seen in WHOIS on 2017-03-05.
DNS moved to domainnetwork.com + domainnetwork.se between Aug 26, 2011 and Jun 3, 2014a4.nstld.com, f4.nstld.com, g4.nstld.com, l4.nstld.com → ns.domainnetwork.se, ns2.domainnetwork.se, ns3.domainnetwork.com. Old set last seen in WHOIS on 2011-08-26; new set first seen in WHOIS on 2014-06-03.

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.

Registrar and renewals: 2 WHOIS/RDAP snapshots, 2026-01-13 to 2026-04-14 (ledger built 2026-09-27). Every renewal

DNS provider, WHOIS snapshots: 56 WHOIS/RDAP snapshots that listed nameservers, 2010-09-10 to 2026-06-25 (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 2002 — the same year as linkedin.com, domaincontrol.com and microsoftonline.com.

AgeDomains from 2002 TLD.cz domains RegistrarAscio Technologies, Inc.DNS providerakam.net nameservers IPv6Does jysk.cz have IPv6?