devnull.cz - robtex.com
devnull.cz
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 109.164.15.182🇨🇿 Starnet109.164.0.0/17 | ||||||
| NS | ns.forpsi.net ⭐ | ||||||
| A | 2001:15e8:101:1::c282🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.forpsi.net | ||||||
| A | 81.2.194.130🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | ns.forpsi.net | ||||||
| NS | ns.forpsi.cz | ||||||
| A | 2001:15e8:201:1::d1b9🇨🇿 INTERNET-CZ2001:15e8::/32 | ||||||
| PTR | ns.forpsi.cz | ||||||
| A | 81.2.209.185🇨🇿 INTERNET-CZ81.2.209.0/24 | ||||||
| PTR | ns.forpsi.cz | ||||||
| NS | ns.forpsi.it | ||||||
| A | 2a00:6d41:2:1::5🇮🇹 ARUBA-ASN2a00:6d41::/32 Aruba S.p.A. IPv6 Network | ||||||
| PTR | ns.forpsi.it | ||||||
| A | 95.110.254.165🇮🇹 ARUBA-ASN95.110.192.0/18 Aruba S.p.A. Network | ||||||
| PTR | host165-254-110-95.serverdedicati.aruba.it | ||||||
| MX | mxavas.forpsi.com ⭐ | ||||||
| A | 81.2.195.200🇨🇿 INTERNET-CZ81.2.192.0/18 INTERNET CZ, a.s. | ||||||
| PTR | mxavas.forpsi.com | ||||||
| SOA | ns.forpsi.netadmin@grdns.cz 2026-05-08 #1 | ||||||
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=1778379435 | ||||||
Subdomains
rax.devnull.cz |
Same first word
Similar names
nevdull.us |
llunved.com |
llunved.de |
nulldev.org |
nevdull.net |
nevdull.ca |
nulldev.com |
vendull.blogspot.com |
nulldev.xyz |
llunved.net |
nevdull.nu |
nulldev.link |
nulldev.se |
nulldev.net |
DNS History
9 records (5 active, 4 former)
●NSns.forpsi.cz2026-02-15 → 2026-05-10 · 3 obs
● 2026-02-15 08:33:40
● 2026-05-10 04:26:46
●NSns.forpsi.it2026-02-15 → 2026-05-10 · 3 obs
● 2026-02-15 08:33:40
● 2026-05-10 04:26:46
●NSns.forpsi.net2026-02-15 → 2026-05-10 · 3 obs
● 2026-02-15 08:33:40
● 2026-05-10 04:26:46
○NSns.grdns.cz2015-07-15 → 2017-06-26 · 4 obs
● 2017-06-26 14:25:52
○ 2026-02-15 08:33:40
○ 2026-05-10 04:26:46
○NSns.grdns.it2015-07-15 → 2017-06-26 · 4 obs
● 2017-06-26 14:25:52
○ 2026-02-15 08:33:40
○ 2026-05-10 04:26:46
○MXmx.grbox.cz2015-07-15 → 2017-06-26 · 4 obs
● 2017-06-26 14:25:52
○ 2026-02-15 08:33:40
○ 2026-05-10 04:26:46
●MXmxavas.forpsi.com2026-02-15 → 2026-05-10 · 3 obs
● 2026-02-15 08:33:40
● 2026-05-10 04:26:46
●A109.164.15.1822026-02-15 → 2026-05-10 · 3 obs
● 2026-02-15 08:33:40
● 2026-05-10 04:26:46
○A213.151.78.62015-07-15 → 2017-06-26 · 4 obs
● 2017-06-26 14:25:52
○ 2026-02-15 08:33:40
○ 2026-05-10 04:26:46
🔍 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 |
| devnull.cz | ns.forpsi.cz, ns.forpsi.net, ns.forpsi.it | 2 records |
✅ Authoritative Response
Server:81.2.209.185
NS records: ns.forpsi.cz, ns.forpsi.net, ns.forpsi.it
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1281ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 109.164.15.182 |
| NS | 3 | ns.forpsi.cz, ns.forpsi.it... |
| MX | 1 | mxavas.forpsi.com (pri: 10) |
| SOA | 1 | ns.forpsi.net admin.grdns.cz |
📌 Glue Records Collected
Total: 10
In-bailiwick: 8 (a.ns.nic.cz, a.ns.nic.cz, b.ns.nic.cz...)
Out-of-bailiwick: 2 (ns.forpsi.cz, ns.forpsi.cz)
Analysis
Hierarchy
devnull.cz is the parent of rax.devnull.cz.
IP Addresses
devnull.cz points to IP number 109.164.15.182.
Name Servers
The delegation for devnull.cz is handled by three name servers: ns.forpsi.cz, ns.forpsi.it and ns.forpsi.net.
devnull.cz shares name servers with other domains at least partially, for example conto.hu, jr-grafik.cz, sprava-dotaci.eu, mx.nedostatky.cz and twosides.cz.
These name servers are commonly used with ns.forpsi.us.
Host names with two IPs:
ns.forpsi.cz points to 2001:15e8:201:1::d1b9 and 81.2.209.185
ns.forpsi.it points to 2a00:6d41:2:1::5 and 95.110.254.165
ns.forpsi.net points to 2001:15e8:101:1::c282 and 81.2.194.130
Mail Servers
devnull.cz is handled by a single mail server, mxavas.forpsi.com.
devnull.cz shares the same mail server setup as other domains, for instance dvorakstav.cz, jobsico.com, beskydy.cz, neveceral.eu and brovko.net.
devnull.cz shares mail servers with other domains at least partially; for instance martinkucera.cz, egk.cz, rcba.sk, yvesrocher.cz and gamosvideo.com.
mxavas.forpsi.com points to a single IP: 81.2.195.200.