IPv6
Measured 2026-11-04 18:37 UTC · aaaa.botWebsite, mail and DNS all work over IPv6.
The published IPv6 address accepted a connection when we tried it.
- ✓ acrobits.cz answers (1 of 1 addresses)
- ✓ www.acrobits.cz answers (1 of 1)
- ✓ Mail: 7 of 7 servers have IPv6
- ✓ Nameservers: 2 of 2 have IPv6
Details: published addresses and what answered
| Name | Published address (AAAA) | Answers when we connect |
|---|---|---|
| acrobits.cz | Published2604:a880:400:d0::8ea:9001 | Answers when we connect✓ answers on 443 |
| www.acrobits.cz | Published2604:a880:400:d0::8ea:9001 | Answers when we connect✓ answers on 443 |
Publishedaspmx.l.google.comalt1.aspmx.l.google.comalt2.aspmx.l.google.comaspmx2.googlemail.comaspmx3.googlemail.comaspmx4.googlemail.comaspmx5.googlemail.com | Answers when we connect✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6✓ has IPv6 | |
| Nameservers | Publishedcash.ns.cloudflare.comrita.ns.cloudflare.com | Answers when we connect✓ has IPv6✓ has IPv6 |
Lineage
Our records: Oct 19, 2009 → Nov 4, 2026Oldest registry snapshot we hold: 2025 · 0 renewals on record. These dates are when our records begin, not when the domain was registered.
DNS provider
- active24.czOct 2009 – Nov 2010
- active24.cz + active24.skOct 2011 – May 2022
- websupport.cz + websupport.euJul 2022 – Dec 2023
- CloudflareJan 2024 – Mar 2026
IPv6
- IPv6published, and answeringFirst measured Nov 2026
What changed
- IPv6 first measured: published, and answering on Nov 4, 2026acrobits.cz has 1 IPv6 address. Grade A. Measured by aaaa.bot, 2026-11-04 18:37 UTC. No earlier IPv6 record is held, so this is not a "gained" date.
- DNS moved to Cloudflare between Dec 3, 2023 and Jan 20, 2024ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu → cash.ns.cloudflare.com, rita.ns.cloudflare.com. Old set last seen in WHOIS on 2023-12-03; new set first seen in WHOIS on 2024-01-20.
- DNS moved to websupport.cz + websupport.eu between May 19, 2022 and Jul 25, 2022alfa.ns.active24.cz, beta.ns.active24.cz, gama.ns.active24.sk → ns1.websupport.cz, ns2.websupport.cz, ns3.websupport.eu. Old set last seen in WHOIS on 2022-05-19; new set first seen in WHOIS on 2022-07-25.
- DNS moved to active24.cz + active24.sk between Nov 25, 2010 and Oct 20, 2011alfa.ns.active24.cz, beta.ns.active24.cz → alfa.ns.active24.cz, beta.ns.active24.cz, gama.ns.active24.sk. Old set last seen in WHOIS on 2010-11-25; new set first seen in WHOIS on 2011-10-20.
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: 3 WHOIS/RDAP snapshots, 2025-11-16 to 2026-03-03 (ledger built 2026-09-27). Every renewal
DNS provider, WHOIS snapshots: 54 WHOIS/RDAP snapshots that listed nameservers, 2009-10-19 to 2026-03-03 (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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