citaf.org - robtex.com
citaf.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2001:718:ff05:202::243🇨🇿 CESNET2001:718::/32 6-TCZ | ||||||
| A | 78.128.216.243🇨🇿 CESNET78.128.128.0/17 -TCZ | ||||||
| NS | nsa.cesnet.cz ⭐ | ||||||
| A | 2001:718:1:101::144:228🇨🇿 CESNET2001:718::/32 6-TCZ | ||||||
| PTR | nsa.cesnet.cz | ||||||
| A | 195.113.144.228🇨🇿 CESNET195.113.0.0/16 -TCZ | ||||||
| PTR | nsa.cesnet.cz | ||||||
| NS | decsys.vsb.cz | ||||||
| A | 2001:718:1001:149::9🇨🇿 CESNET2001:718::/32 6-TCZ | ||||||
| PTR | decsys.vsb.cz | ||||||
| A | 158.196.149.9🇨🇿 CESNET158.196.0.0/16 VSB-TCZ | ||||||
| PTR | decsys.vsb.cz | ||||||
| NS | nsa.ces.net | ||||||
| A | 2001:718:1:1::144:205🇨🇿 CESNET2001:718::/32 6-TCZ | ||||||
| PTR | nsa.ces.net | ||||||
| A | 195.113.144.205🇨🇿 CESNET195.113.0.0/16 -TCZ | ||||||
| MX | ag1.cesnet.cz ⭐ | ||||||
| A | 2001:718:ff05:208::94🇨🇿 CESNET2001:718::/32 6-TCZ | ||||||
| PTR | ag1.cesnet.cz | ||||||
| A | 78.128.247.94🇨🇿 CESNET78.128.128.0/17 -TCZ | ||||||
| PTR | ag1.cesnet.cz | ||||||
| MX | ag2.cesnet.cz ⭐ | ||||||
| A | 2001:718:ff05:10b::245🇨🇿 CESNET2001:718::/32 6-TCZ | ||||||
| PTR | ag2.cesnet.cz | ||||||
| A | 78.128.248.245🇨🇿 CESNET78.128.128.0/17 -TCZ | ||||||
| PTR | ag2.cesnet.cz | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | nsa.cesnet.czhostmaster@cesnet.cz 2025-06-17 #0 | ||||||
org
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.org.afilias-nst.info ⭐ ⚠️ Not in parent delegation | ||||||
| NS | a2.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | b0.org.afilias-nst.org | ||||||
| NS | b2.org.afilias-nst.org | ||||||
| NS | c0.org.afilias-nst.info ⚠️ Not in parent delegation | ||||||
| NS | d0.org.afilias-nst.org | ||||||
| SOA | a0.org.afilias-nst.infohostmaster@donuts.email serial=1781468322 | ||||||
Previously MX for
citaf.org |
Same first word
Similar names
DNS History
11 records (7 active, 4 former)
●NSdecsys.vsb.cz2026-05-30 → 2026-06-14 · 3 obs
● 2026-05-30 15:58:22
● 2026-06-14 20:28:26
○NSns1.hostpapa.com2015-06-06 → 2016-02-22 · 4 obs
● 2016-02-22 20:41:34
○ 2026-05-30 15:58:22
○ 2026-06-14 20:28:26
○NSns2.hostpapa.com2015-06-06 → 2016-02-22 · 4 obs
● 2016-02-22 20:41:34
○ 2026-05-30 15:58:22
○ 2026-06-14 20:28:26
●NSnsa.ces.net2026-05-30 → 2026-06-14 · 3 obs
● 2026-05-30 15:58:22
● 2026-06-14 20:28:26
●NSnsa.cesnet.cz2026-05-30 → 2026-06-14 · 3 obs
● 2026-05-30 15:58:22
● 2026-06-14 20:28:26
●MXag1.cesnet.cz2026-05-30 → 2026-06-14 · 3 obs
● 2026-05-30 15:58:22
● 2026-06-14 20:28:26
●MXag2.cesnet.cz2026-05-30 → 2026-06-14 · 3 obs
● 2026-05-30 15:58:22
● 2026-06-14 20:28:26
○MXcitaf.org2015-06-06 → 2016-02-22 · 4 obs
● 2016-02-22 20:41:34
○ 2026-05-30 15:58:22
○ 2026-06-14 20:28:26
●A2001:718:ff05:202::2432026-05-30 → 2026-06-14 · 3 obs
● 2026-05-30 15:58:22
● 2026-06-14 20:28:26
○A64.34.157.1702015-06-06 → 2016-02-22 · 4 obs
● 2016-02-22 20:41:34
○ 2026-05-30 15:58:22
○ 2026-06-14 20:28:26
●A78.128.216.2432026-05-30 → 2026-06-14 · 3 obs
● 2026-05-30 15:58:22
● 2026-06-14 20:28:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| citaf.org | decsys.vsb.cz, nsa.ces.net, nsa.cesnet.cz | - |
✅ Authoritative Response
Server:158.196.149.9
NS records: decsys.vsb.cz, nsa.ces.net, nsa.cesnet.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for citaf.org (unsigned zone)
⏱️ Timing
Total: 887ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 78.128.216.243 |
| AAAA | 1 | 2001:718:ff05:202::243 |
| NS | 3 | nsa.cesnet.cz, nsa.ces.net... |
| MX | 2 | ag2.cesnet.cz (pri: 10), ag1.cesnet.cz (pri: 10) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | nsa.cesnet.cz hostmaster.cesnet.cz |
Analysis
IP Addresses
citaf.org directs to two IP numbers, 78.128.216.243 and 2001:718:ff05:202::243
Two other host names, along with eduid.cz, cesnet-ca.cz and ces.net, also share IP numbers with citaf.org.
Name Servers
citaf.org is served by three name servers: nsa.cesnet.cz, decsys.vsb.cz and nsa.ces.net.
citaf.org has at least partial name server overlap with other domains, such as 134.113.195.in-addr.arpa, meter.cesnet.cz, 147.113.195.in-addr.arpa and two others.
nsa.ten.cz, ns1.slu.cz and ns2.slu.cz — plus 7 other name servers — are commonly paired with these name servers.
The hostnames nsa.cesnet.cz, decsys.vsb.cz and nsa.ces.net each direct to two IP addresses — nsa.cesnet.cz to 195.113.144.228 and 2001:718:1:101::144:228, decsys.vsb.cz to 158.196.149.9 and 2001:718:1001:149::9, and nsa.ces.net to 195.113.144.205 and 2001:718:1:1::144:205.
Mail Servers
citaf.org is served by two mail servers, ag1.cesnet.cz and ag2.cesnet.cz.
Among the domains sharing a mail server setup with citaf.org are cuni.cz, liberouter.net, lf2.cuni.cz and two others.
There is at least a partial MX overlap between citaf.org and other domains, including zzsmsk.cz, zachranka-msk.cz, mustribro.cz and two others.
These mail servers tend to be used in combination with the mail servers mta2.zzsmsk.cz and mta.zzsmsk.cz.
ag1.cesnet.cz resolves to 78.128.247.94 and 2001:718:ff05:208::94. Likewise, ag2.cesnet.cz resolves to 78.128.248.245 and 2001:718:ff05:10b::245 — two IP addresses apiece.