devfest.cz - dns.ninja
devfest.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=1782915440 | ||||||
Same first word
devfest.withgoogle.com |
devfest.cz |
devfest.by |
devfest.nl |
devfest.ru |
devfest.modena.it |
devfest.at |
devfest.shop |
devfest.co.uk |
devfest.ch |
devfest.co.za |
devfest.asia |
devfest.mn |
Similar names
DNS History
29 records (12 active, 17 former)
○NSns.gransy.com2015-08-25 → 2026-05-23 · 4 obs
● 2026-05-23 01:50:26
○ 2026-07-01 15:31:44
○ 2026-07-01 15:31:46
●NSns.wedos.com2026-07-01 → 2026-07-01 · 3 obs
● 2026-07-01 15:31:44
● 2026-07-01 15:31:46
●NSns.wedos.cz2026-07-01 → 2026-07-01 · 3 obs
● 2026-07-01 15:31:44
● 2026-07-01 15:31:46
●NSns.wedos.eu2026-07-01 → 2026-07-01 · 3 obs
● 2026-07-01 15:31:44
● 2026-07-01 15:31:46
●NSns.wedos.net2026-07-01 → 2026-07-01 · 3 obs
● 2026-07-01 15:31:44
● 2026-07-01 15:31:46
○NSns2.gransy.com2015-08-25 → 2026-05-23 · 4 obs
● 2026-05-23 01:50:26
○ 2026-07-01 15:31:44
○ 2026-07-01 15:31:46
○NSns3.gransy.com2015-08-25 → 2026-05-23 · 4 obs
● 2026-05-23 01:50:26
○ 2026-07-01 15:31:44
○ 2026-07-01 15:31:46
○NSns4.gransy.com2015-08-25 → 2026-05-23 · 4 obs
● 2026-05-23 01:50:26
○ 2026-07-01 15:31:44
○ 2026-07-01 15:31:46
○NSns5.gransy.com2015-08-25 → 2026-05-23 · 4 obs
● 2026-05-23 01:50:26
○ 2026-07-01 15:31:44
○ 2026-07-01 15:31:46
●MXalt1.aspmx.l.google.com2015-08-25 → 2026-07-01 · 2 obs
● 2026-07-01 15:31:46
●MXalt2.aspmx.l.google.com2015-08-25 → 2026-07-01 · 2 obs
● 2026-07-01 15:31:46
●MXaspmx.l.google.com2015-08-25 → 2026-07-01 · 2 obs
● 2026-07-01 15:31:46
●MXaspmx2.googlemail.com2015-08-25 → 2026-07-01 · 2 obs
● 2026-07-01 15:31:46
●MXaspmx3.googlemail.com2015-08-25 → 2026-07-01 · 2 obs
● 2026-07-01 15:31:46
●MXaspmx4.googlemail.com2015-08-25 → 2026-07-01 · 2 obs
● 2026-07-01 15:31:46
●MXaspmx5.googlemail.com2015-08-25 → 2026-07-01 · 2 obs
● 2026-07-01 15:31:46
○A151.101.1.1952016-09-09 → 2016-09-09 · 4 obs
● 2016-09-09 20:07:24
○ 2017-05-21 20:39:34
○ 2026-07-01 15:31:46
○A151.101.65.1952016-09-09 → 2016-09-09 · 4 obs
● 2016-09-09 20:07:24
○ 2017-05-21 20:39:34
○ 2026-07-01 15:31:46
●A199.36.158.1002026-05-23 → 2026-07-01 · 3 obs
● 2026-05-23 01:50:26
● 2026-07-01 15:31:46
○A2001:4860:4802:32::152015-08-25 → 2017-05-21 · 6 obs
○ 2016-01-04 03:40:14
○ 2016-09-09 20:07:24
● 2017-05-21 20:39:34
○ 2026-03-24 01:22:22
○ 2026-07-01 15:31:46
○A2001:4860:4802:34::152015-08-25 → 2017-05-21 · 6 obs
○ 2016-01-04 03:40:14
○ 2016-09-09 20:07:24
● 2017-05-21 20:39:34
○ 2026-03-24 01:22:22
○ 2026-07-01 15:31:46
○A2001:4860:4802:36::152015-08-25 → 2017-05-21 · 6 obs
○ 2016-01-04 03:40:14
○ 2016-09-09 20:07:24
● 2017-05-21 20:39:34
○ 2026-03-24 01:22:22
○ 2026-07-01 15:31:46
○A2001:4860:4802:38::152015-08-25 → 2017-05-21 · 6 obs
○ 2016-01-04 03:40:14
○ 2016-09-09 20:07:24
● 2017-05-21 20:39:34
○ 2026-03-24 01:22:22
○ 2026-07-01 15:31:46
○A216.239.32.212015-08-25 → 2017-05-21 · 6 obs
● 2016-04-06 03:10:48
○ 2016-09-09 20:07:24
● 2017-05-21 20:39:34
○ 2026-03-24 01:22:22
○ 2026-07-01 15:31:46
○A216.239.34.212015-08-25 → 2017-05-21 · 6 obs
● 2016-04-06 03:10:48
○ 2016-09-09 20:07:24
● 2017-05-21 20:39:34
○ 2026-03-24 01:22:22
○ 2026-07-01 15:31:46
○A216.239.36.212015-08-25 → 2017-05-21 · 6 obs
● 2016-04-06 03:10:48
○ 2016-09-09 20:07:24
● 2017-05-21 20:39:34
○ 2026-03-24 01:22:22
○ 2026-07-01 15:31:46
○A216.239.38.212015-08-25 → 2017-05-21 · 6 obs
● 2016-04-06 03:10:48
○ 2016-09-09 20:07:24
● 2017-05-21 20:39:34
○ 2026-03-24 01:22:22
○ 2026-07-01 15:31:46
○A31.43.160.62026-03-24 → 2026-03-30 · 5 obs
● 2026-03-24 01:22:22
● 2026-03-30 00:56:58
○ 2026-05-23 01:50:26
○ 2026-07-01 15:31:46
○A31.43.161.62026-03-24 → 2026-03-30 · 5 obs
● 2026-03-24 01:22:22
● 2026-03-30 00:56:58
○ 2026-05-23 01:50:26
○ 2026-07-01 15:31:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cz | d.ns.nic.cz, c.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz | - |
| devfest.cz | ns.wedos.cz, ns.wedos.eu, ns.wedos.com, ns.wedos.net | 4 records |
✅ Authoritative Response
Server:75.2.92.86
NS records: ns.wedos.cz, ns.wedos.eu, ns.wedos.com, ns.wedos.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for devfest.cz (unsigned zone)
⏱️ Timing
Total: 2412ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 199.36.158.100 |
| NS | 4 | ns.wedos.com, ns.wedos.net... |
| MX | 7 | aspmx.l.google.com (pri: 10), alt1.aspmx.l.google.com (pri: 20)... |
| TXT | 4 | google-site-verification=zjupBYznBjW2yig, hosting-site=devfest-public... |
| SOA | 1 | ns.wedos.com wedos.wedos.com |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns.wedos.cz, ns.wedos.cz, ns.wedos.cz...)
Analysis
IP Addresses
devfest.cz has exactly one IP address — 199.36.158.100.
www.aelussard.firebaseapp.com, phuctran.com, www.egm-app-beta.firebaseapp.com plus two other host names have IP numbers in common with devfest.cz.
Name Servers
Four name servers handle the delegation for devfest.cz: ns.wedos.com, ns.wedos.cz, ns.wedos.eu and ns.wedos.net.
devfest.cz has at least partial name server overlap with other domains, such as ja-zdravotnickepotreby.cz, vfe.cz, iximedia.cz and two others.
Host names with four IP addresses:
ns.wedos.cz has four IP addresses: 45.138.106.1, 185.8.238.1, 2a0e:acc0:1::caff:caff:cafb and 2a0e:acc0:2::c:1:c1.
ns.wedos.net has four IP addresses: 75.2.92.86, 99.83.142.9, 2600:9000:a419:5a54:19f7:a614:36fd:2825 and 2600:9000:a705:25bb:c632:5e5a:dd9c:1e46.
Host names pointing to two IP addresses:
ns.wedos.com maps to two IP addresses — 45.138.106.0 and 2a0e:acc0:1::cafe:cafe:cafe.
ns.wedos.eu maps to two IP addresses — 185.8.238.0 and 2a0e:acc0:2::b:1:b1.
Mail Servers
Mail for devfest.cz is routed through 7 mail servers, including aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.
At least some of the mail servers used by devfest.cz are shared with other domains: ns500742.ns500754.ns500742.ns500731.ns500671.ns500704.ns500731.ns500742.ns500705.ns500705.ns500704.ns500705.ns500688.lusty(0x736c7574)z.com, ns500671.ns500731.ns500731.ns500671.ns500731.ns500704.ns500671.ns500671.ns500704.ns500688.ns500649.ns500649.ns500666.ns500142.lusty(0x736c7574)z.com, ns500698.ns500698.ns500698.ns500759.ns500736.ns500735.ns500736.ns500735.ns500736.ns500735.ns500576.ns500576.ns500619.ns500619.trackreceptor.com and two others among them.
These mail servers are often deployed together with aspmx.l.google.com, alt2.aspmx.l.google.com, alt1.aspmx.l.google.com and 3 other mail servers.
Host names pointing to two IP addresses:
aspmx2.googlemail.com maps to two IP addresses — 108.177.123.27 and 2800:3f0:4003:c0f::1b.
aspmx3.googlemail.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1a.
aspmx4.googlemail.com maps to two IP addresses — 192.178.223.27 and 2a00:1450:4009:c0f::1a.
aspmx5.googlemail.com maps to two IP addresses — 172.253.157.26 and 2a00:1450:400c:c23::1b.
aspmx.l.google.com maps to two IP addresses — 192.178.155.27 and 2607:f8b0:4004:c09::1a.
alt1.aspmx.l.google.com maps to two IP addresses — 108.177.123.26 and 2800:3f0:4003:c0f::1b.
alt2.aspmx.l.google.com maps to two IP addresses — 172.253.116.26 and 2a00:1450:400b:c02::1b.
These two host names — aspmx2.googlemail.com and alt1.aspmx.l.google.com — each point to 2800:3f0:4003:c0f::1b IP addresses.
These two host names — aspmx3.googlemail.com and alt2.aspmx.l.google.com — each point to 172.253.116.26 IP addresses.