naboj.org - robtex.com
naboj.org
| DNSSEC | ⚠️ Not signed | ||||||
| A | 158.195.86.172🇸🇰 SANET158.195.0.0/17 COMUNI-NET | ||||||
| NS | kudykam.ms.mff.cuni.cz ⭐ | ||||||
| A | 2001:718:1e03:801::11🇨🇿 CESNET2001:718::/32 6-TCZ | ||||||
| PTR | kudykam.ms.mff.cuni.cz | ||||||
| A | 195.113.20.17🇨🇿 CESNET195.113.0.0/16 -TCZ | ||||||
| PTR | kudykam.ms.mff.cuni.cz | ||||||
| NS | akamas.troja.mff.cuni.cz | ||||||
| MX | nikam.ms.mff.cuni.cz ⭐ | ||||||
| A | 195.113.20.16🇨🇿 CESNET195.113.0.0/16 -TCZ | ||||||
| PTR | nikam.ms.mff.cuni.cz | ||||||
| MX | akamas.n.mff.cuni.cz(10) | ||||||
| TXT | v=spf1 mx include:_spfset.kam.mff.cuni.cz include:spf.mailjet.com ?all | ||||||
| SOA | kudykam.ms.mff.cuni.czwizards@kam.mff.cuni.cz 2026-03-25 #1 | ||||||
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=1777028507 | ||||||
rank #56829 in the tld
📈 Tranco rank: #913,253
Subdomains
math.naboj.org |
Same first word
naboj.org |
Similar names
DNS History
14 records (5 active, 9 former)
●NSakamas.troja.mff.cuni.cz2020-02-09 → 2026-04-24 · 3 obs
● 2020-02-09 08:42:08
● 2026-04-24 11:23:40
○NSkrbik.karlin.mff.cuni.cz2015-08-13 → 2017-03-26 · 4 obs
● 2017-03-26 04:14:24
○ 2020-02-09 08:42:08
○ 2026-04-24 11:23:40
●NSkudykam.ms.mff.cuni.cz2015-08-13 → 2026-04-24 · 2 obs
● 2026-04-24 11:23:40
●MXakamas.n.mff.cuni.cz2026-04-18 → 2026-04-24 · 3 obs
● 2026-04-18 05:55:08
● 2026-04-24 11:23:40
○MXatrey.karlin.mff.cuni.cz2015-08-13 → 2016-07-17 · 4 obs
● 2016-07-17 17:38:48
○ 2017-03-26 04:14:24
○ 2026-04-24 11:23:40
●MXnikam.ms.mff.cuni.cz2026-04-18 → 2026-04-24 · 3 obs
● 2026-04-18 05:55:08
● 2026-04-24 11:23:40
○MXsmtp1.kolej.mff.cuni.cz2017-03-26 → 2020-02-09 · 5 obs
● 2017-03-26 04:14:24
● 2020-02-09 08:42:08
○ 2026-04-18 05:55:08
○ 2026-04-24 11:23:40
○MXsmtp1.ms.mff.cuni.cz2017-03-26 → 2020-02-09 · 5 obs
● 2017-03-26 04:14:24
● 2020-02-09 08:42:08
○ 2026-04-18 05:55:08
○ 2026-04-24 11:23:40
○MXsmtp2.kolej.mff.cuni.cz2017-03-26 → 2020-02-09 · 5 obs
● 2017-03-26 04:14:24
● 2020-02-09 08:42:08
○ 2026-04-18 05:55:08
○ 2026-04-24 11:23:40
○MXsmtp2.ms.mff.cuni.cz2017-03-26 → 2020-02-09 · 5 obs
● 2017-03-26 04:14:24
● 2020-02-09 08:42:08
○ 2026-04-18 05:55:08
○ 2026-04-24 11:23:40
●A158.195.86.1722026-04-18 → 2026-04-24 · 3 obs
● 2026-04-18 05:55:08
● 2026-04-24 11:23:40
○A195.113.19.1732016-03-16 → 2016-07-17 · 5 obs
● 2016-03-16 16:05:14
● 2016-07-17 17:38:48
○ 2017-03-26 04:14:24
○ 2026-04-24 11:23:40
○A195.113.20.1222017-03-26 → 2020-02-09 · 5 obs
● 2017-03-26 04:14:24
● 2020-02-09 08:42:08
○ 2026-04-18 05:55:08
○ 2026-04-24 11:23:40
○A195.113.26.1932015-08-13 → 2015-12-13 · 4 obs
● 2015-12-13 07:18:16
○ 2016-03-16 16:05:14
○ 2026-04-24 11:23:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| org | b0.org.afilias-nst.org, b2.org.afilias-nst.org, d0.org.afilias-nst.org | - |
| naboj.org | kudykam.ms.mff.cuni.cz, akamas.troja.mff.cuni.cz | - |
✅ Authoritative Response
Server:195.113.10.4
NS records: kudykam.ms.mff.cuni.cz, akamas.troja.mff.cuni.cz
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for naboj.org (unsigned zone)
⏱️ Timing
Total: 886ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 158.195.86.172 |
| NS | 2 | akamas.troja.mff.cuni.cz, kudykam.ms.mff.cuni.cz |
| MX | 2 | akamas.n.mff.cuni.cz (pri: 10), nikam.ms.mff.cuni.cz (pri: 0) |
| TXT | 1 | v=spf1 mx include:_spfset.kam.mff.cuni.c |
| SOA | 1 | kudykam.ms.mff.cuni.cz wizards.kam.mff.c |
Analysis
Hierarchy
math.naboj.org is a child of naboj.org.
IP Addresses
naboj.org resolves to one IP number: 158.195.86.172.
Other host names, for example math.naboj.org, share IP numbers with naboj.org.
Name Servers
naboj.org's delegation uses two name servers: kudykam.ms.mff.cuni.cz and akamas.troja.mff.cuni.cz.
naboj.org uses the same name server setup as other domains, for example openproblemgarden.org.
naboj.org at least partially shares name servers with other domains, including lingol.cz, ioinformatics.org, 1.8.0.3.0.e.1.8.1.7.0.1.0.0.2.ip6.arpa, kam.mff.cuni.cz and iuuk.mff.cuni.cz.
These name servers are commonly used together with the name servers akamas.n.mff.cuni.cz, ns.ms.mff.cuni.cz, sns.ms.mff.cuni.cz and jabberwock.ucw.cz.
Host names with two IP numbers: kudykam.ms.mff.cuni.cz points to 2001:718:1e03:801::11 and 195.113.20.17.
Mail Servers
naboj.org is served by two mail servers nikam.ms.mff.cuni.cz and akamas.n.mff.cuni.cz.
naboj.org shares the same mail server setup as other domains, for instance kam.mff.cuni.cz, math.naboj.org, iuuk.mff.cuni.cz, maso.mff.cuni.cz and nikam.ms.mff.cuni.cz.
naboj.org shares at least some mail servers with other domains, for example prase.cz, pluto.ms.mff.cuni.cz, ktiml.mff.cuni.cz, d3s.mff.cuni.cz and ufal.mff.cuni.cz.
Host names with a single IP number: The host name nikam.ms.mff.cuni.cz points to 195.113.20.16.