alfest.cz - robtex.com
alfest.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a00:4b40:aaaa:2011::6🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32 | ||||||
| A | 37.9.175.213🇸🇰 WEBSUPPORT-SRO-SK-AS37.9.175.0/24 | ||||||
| NS | alfa.ns.active24.cz ⭐ | ||||||
| A | 2a02:4a8:ac24:100::96:2🇨🇿 ACTIVE24-AS2a02:4a8::/32 CZ-ACTIVE24-NET6 | ||||||
| PTR | alfa.ns.active24.cz | ||||||
| A | 81.95.96.2🇨🇿 ACTIVE24-AS81.95.96.0/20 CZ-ACTIVE24-NET1 | ||||||
| PTR | alfa.ns.active24.cz | ||||||
| NS | beta.ns.active24.cz | ||||||
| A | 2a00:4b40:1000:590:185:111:90:94🇸🇰 WEBSUPPORT-SRO-SK-AS2a00:4b40::/32 | ||||||
| PTR | beta.ns.active24.cz | ||||||
| A | 185.111.90.94🇭🇺 WEBSUPPORT-SRO-SK-AS185.111.88.0/22 | ||||||
| PTR | beta.ns.active24.cz | ||||||
| NS | gama.ns.active24.sk | ||||||
| A | 2a00:1968:0:1002:185:71:158:30🇸🇪 LOOPIA32a00:1968::/48 | ||||||
| PTR | gama.ns.active24.sk | ||||||
| A | 185.71.158.30🇸🇪 LOOPIA3185.71.158.0/24 | ||||||
| PTR | gama.ns.active24.sk | ||||||
| MX | mail2.alfest.cz ⭐ | ||||||
| A | 62.141.28.96🇨🇿 TMOBILE-CZ62.141.0.0/19 T-Mobile Czech Republic a.s. | ||||||
| PTR | mail.alfest.cz | ||||||
| MX | mail.alfest.cz(20) | ||||||
| A | 185.158.67.230🇨🇿 Hnojnik185.158.64.0/22 | ||||||
| PTR | mail.alfest.cz | ||||||
| TXT | MS=ms99637116 | ||||||
| TXT | v=spf1 +mx ip4:91.239.201.16 -all | ||||||
| SOA | alfa.ns.active24.czhostmaster@active24.cz 2026-05-11 #4 | ||||||
cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.ns.nic.cz ⭐ | ||||||
| NS | b.ns.nic.cz | ||||||
| NS | c.ns.nic.cz | ||||||
| NS | d.ns.nic.cz | ||||||
| SOA | a.ns.nic.czhostmaster@nic.cz serial=1784639844 | ||||||
Subdomains
Same first word
Similar names
DNS History
19 records (7 active, 12 former)
●NSalfa.ns.active24.cz2026-06-11 → 2026-07-21 · 3 obs
● 2026-06-11 14:32:02
● 2026-07-21 14:01:18
●NSbeta.ns.active24.cz2026-06-11 → 2026-07-21 · 3 obs
● 2026-06-11 14:32:02
● 2026-07-21 14:01:18
●NSgama.ns.active24.sk2026-06-11 → 2026-07-21 · 3 obs
● 2026-06-11 14:32:02
● 2026-07-21 14:01:18
○NSns.wedos.com2015-07-15 → 2017-02-08 · 4 obs
● 2017-02-08 03:05:10
○ 2026-06-11 14:32:02
○ 2026-07-21 14:01:18
○NSns.wedos.cz2015-07-15 → 2017-02-08 · 4 obs
● 2017-02-08 03:05:10
○ 2026-06-11 14:32:02
○ 2026-07-21 14:01:18
○NSns.wedos.eu2015-07-15 → 2017-02-08 · 4 obs
● 2017-02-08 03:05:10
○ 2026-06-11 14:32:02
○ 2026-07-21 14:01:18
○NSns.wedos.net2015-07-15 → 2017-02-08 · 4 obs
● 2017-02-08 03:05:10
○ 2026-06-11 14:32:02
○ 2026-07-21 14:01:18
●MXmail.alfest.cz2026-06-11 → 2026-07-21 · 3 obs
● 2026-06-11 14:32:02
● 2026-07-21 14:01:18
○MXmail1.wedos.net2015-07-15 → 2015-11-17 · 4 obs
● 2015-11-17 16:47:32
○ 2016-03-15 21:42:36
○ 2026-07-21 14:01:18
●MXmail2.alfest.cz2026-06-11 → 2026-07-21 · 3 obs
● 2026-06-11 14:32:02
● 2026-07-21 14:01:18
○MXmailbackup.wedos.net2015-07-15 → 2015-11-17 · 4 obs
● 2015-11-17 16:47:32
○ 2016-03-15 21:42:36
○ 2026-07-21 14:01:18
○MXwes1-mx-backup.wedos.net2017-02-08 → 2017-02-08 · 4 obs
● 2017-02-08 03:05:10
○ 2026-06-11 14:32:02
○ 2026-07-21 14:01:18
○MXwes1-mx1.wedos.net2016-03-15 → 2017-02-08 · 5 obs
● 2016-03-15 21:42:36
● 2017-02-08 03:05:10
○ 2026-06-11 14:32:02
○ 2026-07-21 14:01:18
○MXwes1-mx2.wedos.net2016-03-15 → 2017-02-08 · 5 obs
● 2016-03-15 21:42:36
● 2017-02-08 03:05:10
○ 2026-06-11 14:32:02
○ 2026-07-21 14:01:18
●A2a00:4b40:aaaa:2011::62026-06-11 → 2026-07-21 · 3 obs
● 2026-06-11 14:32:02
● 2026-07-21 14:01:18
○A2a02:2b88:1:4::ac2017-02-08 → 2017-02-08 · 4 obs
● 2017-02-08 03:05:10
○ 2026-06-11 14:32:02
○ 2026-07-21 14:01:18
●A37.9.175.2132026-06-11 → 2026-07-21 · 3 obs
● 2026-06-11 14:32:02
● 2026-07-21 14:01:18
○A46.28.105.112015-07-15 → 2016-04-21 · 4 obs
● 2016-04-21 08:51:14
○ 2017-02-08 03:05:10
○ 2026-07-21 14:01:18
○A46.28.106.642017-02-08 → 2017-02-08 · 4 obs
● 2017-02-08 03:05:10
○ 2026-06-11 14:32:02
○ 2026-07-21 14:01:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | - |
| alfest.cz | alfa.ns.active24.cz, beta.ns.active24.cz, gama.ns.active24.sk | 4 records |
✅ Authoritative Response
Server:185.111.90.94
NS records: alfa.ns.active24.cz, beta.ns.active24.cz, gama.ns.active24.sk
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1512ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.9.175.213 |
| AAAA | 1 | 2a00:4b40:aaaa:2011::6 |
| NS | 3 | alfa.ns.active24.cz, beta.ns.active24.cz... |
| MX | 2 | mail.alfest.cz (pri: 10), mail2.alfest.cz (pri: 20) |
| TXT | 2 | MS=ms99637116, v=spf1 +mx ip4:91.239.201.16 -all |
| SOA | 1 | alfa.ns.active24.cz hostmaster.active24. |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (alfa.ns.active24.cz, alfa.ns.active24.cz, beta.ns.active24.cz...)
Analysis
Hierarchy
mail.alfest.cz and mail2.alfest.cz each fall under alfest.cz as their parent domain.
IP Addresses
alfest.cz has two IP addresses: 37.9.175.213 and 2a00:4b40:aaaa:2011::6
Two other host names, along with dpbuilding.com, architectureweek.cz and www.pdgate.com, also share IP numbers with alfest.cz.
Name Servers
The authoritative name servers for alfest.cz are alfa.ns.active24.cz, beta.ns.active24.cz and gama.ns.active24.sk — three in total.
At least some of alfest.cz's name servers are shared with other domains, for example mendel-brno.com, mytoshiba.sk, katarakta.cz and two more.
These name servers tend to be used in conjunction with the name servers ns.servery.cz.
alfa.ns.active24.cz, beta.ns.active24.cz and gama.ns.active24.sk all resolve to exactly two IP numbers apiece: alfa.ns.active24.cz → 81.95.96.2 and 2a02:4a8:ac24:100::96:2; beta.ns.active24.cz → 185.111.90.94 and 2a00:4b40:1000:590:185:111:90:94; gama.ns.active24.sk → 185.71.158.30 and 2a00:1968:0:1002:185:71:158:30.
Mail Servers
alfest.cz is served by two mail servers, mail2.alfest.cz and mail.alfest.cz.
alfest.cz overlaps on mail servers with certain other domains, merops.cz among them.
Each of mail2.alfest.cz and mail.alfest.cz has one IP address: mail2.alfest.cz uses 62.141.28.96 and mail.alfest.cz uses 185.158.67.230.