extra-web.cz - robtex.com
extra-web.cz
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=1771291036 | ||||||
Subdomains
server5.extra-web.cz |
server3.extra-web.cz |
server3-57.extra-web.cz |
server4.extra-web.cz |
mail2.extra-web.cz |
server1.extra-web.cz |
mx1.extra-web.cz |
mail.extra-web.cz |
*.extra-web.cz |
Same first word
Similar names
DNS History
14 records (6 active, 8 former)
○MXalt1.aspmx.l.google.com2015-08-17 → 2016-12-18 · 4 obs
● 2016-12-18 07:31:26
○ 2026-02-18 21:44:44
○ 2026-03-18 17:19:54
○MXalt2.aspmx.l.google.com2015-08-17 → 2016-12-18 · 4 obs
● 2016-12-18 07:31:26
○ 2026-02-18 21:44:44
○ 2026-03-18 17:19:54
○MXaspmx.l.google.com2015-08-17 → 2016-12-18 · 4 obs
● 2016-12-18 07:31:26
○ 2026-02-18 21:44:44
○ 2026-03-18 17:19:54
○MXaspmx2.googlemail.com2015-08-17 → 2016-12-18 · 4 obs
● 2016-12-18 07:31:26
○ 2026-02-18 21:44:44
○ 2026-03-18 17:19:54
○MXaspmx3.googlemail.com2015-08-17 → 2016-12-18 · 4 obs
● 2016-12-18 07:31:26
○ 2026-02-18 21:44:44
○ 2026-03-18 17:19:54
○MXaspmx4.googlemail.com2015-08-17 → 2016-12-18 · 4 obs
● 2016-12-18 07:31:26
○ 2026-02-18 21:44:44
○ 2026-03-18 17:19:54
○MXaspmx5.googlemail.com2015-08-17 → 2016-12-18 · 4 obs
● 2016-12-18 07:31:26
○ 2026-02-18 21:44:44
○ 2026-03-18 17:19:54
●MXsmtp.google.com2026-02-18 → 2026-03-18 · 3 obs
● 2026-02-18 21:44:44
● 2026-03-18 17:19:54
●A37.235.104.2242026-02-18 → 2026-03-18 · 3 obs
● 2026-02-18 21:44:44
● 2026-03-18 17:19:54
○A94.23.169.552015-08-17 → 2016-12-18 · 4 obs
● 2016-12-18 07:31:26
○ 2026-02-18 21:44:44
○ 2026-03-18 17:19:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz, d.ns.nic.cz | 8 records |
| extra-web.cz | ns.wedos.cz, ns.wedos.eu, ns.wedos.com, ns.wedos.net | 4 records |
✅ Authoritative Response
Server: 45.138.106.0
NS records: ns.wedos.cz, ns.wedos.eu, ns.wedos.com, ns.wedos.net
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1252ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 37.235.104.224 |
| NS | 4 | ns.wedos.eu, ns.wedos.com... |
| MX | 1 | smtp.google.com (pri: 1) |
| TXT | 3 | google-site-verification=UUk9i01hZo8qX_p, v=spf1 a mx include:_spf.google.com incl... |
| SOA | 1 | ns.wedos.net wedos.wedos.com |
📌 Glue Records Collected
Total: 12
In-bailiwick: 8 (a.ns.nic.cz, b.ns.nic.cz, c.ns.nic.cz...)
Out-of-bailiwick: 4 (ns.wedos.cz, ns.wedos.cz, ns.wedos.cz...)
Analysis
Hierarchy
extra-web.cz is the parent of server5.extra-web.cz, server3.extra-web.cz, server3-57.extra-web.cz, server4.extra-web.cz, mail2.extra-web.cz and a few other host names.
IP Addresses
extra-web.cz maps to IP address 37.235.104.224.
Other host names, for instance go-czechia.cz, www.flyunited.cz, server4.extra-web.cz, mail.jaguska.cz and mail2.extra-web.cz share IP numbers with extra-web.cz.
Name Servers
extra-web.cz is delegated to four name servers: ns.wedos.com, ns.wedos.cz, ns.wedos.eu and ns.wedos.net.
extra-web.cz at least partially shares name servers with other domains such as controlsoft.cz, deportal.cz, aleskrejci.cz, nasefoto.eu and velikonocnislavnosti.cz.
Host names with four IP numbers:
ns.wedos.cz points to: 2a0e:acc0:1::caff:caff:cafb, 2a0e:acc0:2::c:1:c1, 45.138.106.1 and 185.8.238.1.
ns.wedos.net points to: 2600:9000:a419:5a54:19f7:a614:36fd:2825, 2600:9000:a705:25bb:c632:5e5a:dd9c:1e46, 75.2.92.86 and 99.83.142.9.
Host names with two IP numbers:
ns.wedos.com points to: 2a0e:acc0:1::cafe:cafe:cafe and 45.138.106.0.
ns.wedos.eu points to: 2a0e:acc0:2::b:1:b1 and 185.8.238.0.
Mail Servers
extra-web.cz is handled by a single mail server, smtp.google.com.
extra-web.cz shares the same mail server setup as other domains, including absoluteplumbing.net, unimfa.com, institutohibisco.com.br, nsdgn.com and bigtraffic.ru.
extra-web.cz shares mail servers with other domains at least in part, for instance writetext.ai, carolinabiosystems.cz, buckylamb.com, readygame.com and myobjects.app.
These mail servers are often used together with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
Host name smtp.google.com points to nine IP numbers: 2607:f8b0:4023:c06::1a, 2607:f8b0:4023:c06::1b, 2607:f8b0:4023:c0b::1a, 2607:f8b0:4023:c0b::1b, 142.250.101.26, 142.250.101.27, 142.250.141.26, 142.250.141.27 and 142.251.2.26.