interblock.pl - dns.ninja
interblock.pl
| DNSSEC | ⚠️ Not signed | ||||||
| A | 81.163.204.139🇵🇱 InterBlock-ASN81.163.200.0/21 ITB Sp. z o.o. | ||||||
| PTR | www.interblock.pl | ||||||
| NS | dns1.interblock.pl ⭐ | ||||||
| A | 81.163.204.134🇵🇱 InterBlock-ASN81.163.200.0/21 ITB Sp. z o.o. | ||||||
| PTR | dns1.interblock.pl | ||||||
| NS | dns.interblock.pl | ||||||
| A | 81.163.204.136🇵🇱 InterBlock-ASN81.163.200.0/21 ITB Sp. z o.o. | ||||||
| PTR | undef-e-136.interblock.pl | ||||||
| NS | dns2.interblock.pl | ||||||
| A | 81.163.204.138🇵🇱 InterBlock-ASN81.163.200.0/21 ITB Sp. z o.o. | ||||||
| PTR | dns2.interblock.pl | ||||||
| NS | fns1.42.pl ⚠️ Not in parent delegation | ||||||
| A | 79.98.145.34🇵🇱 NitroNet79.98.144.0/21 Nitronet Sp. z o.o. | ||||||
| NS | fns2.42.pl ⚠️ Not in parent delegation | ||||||
| A | 2001:41d0:701:1100::66c🇩🇪 OVH2001:41d0::/32 IPv6 | ||||||
| PTR | fns2.42.pl | ||||||
| A | 51.38.99.90🇫🇷 OVH51.38.0.0/16 | ||||||
| PTR | fns2.42.pl | ||||||
| MX | poczta.interblock.pl ⭐ | ||||||
| A | 81.163.204.131🇵🇱 InterBlock-ASN81.163.200.0/21 ITB Sp. z o.o. | ||||||
| PTR | poczta.interblock.pl | ||||||
| TXT | v=spf1 ip4:81.163.204.131 mx -all | ||||||
| TXT | google-site-verification=bHv4r16UW-1uZDhw_yvClMp5IgvkDD5KHVIxR_V61rc | ||||||
| SOA | dns.interblock.plroot@interblock.pl 2026-03-05 #37 | ||||||
pl
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a-dns.pl ⭐ | ||||||
| NS | b-dns.pl | ||||||
| NS | d-dns.pl | ||||||
| NS | f-dns.pl | ||||||
| NS | h-dns.pl | ||||||
| NS | j-dns.pl | ||||||
| TXT | ccTLD of Poland | ||||||
| SOA | a-dns.pldnsmaster@nask.pl serial=1783837955 | ||||||
Subdomains
Same first word
Similar names
DNS History
9 records (7 active, 2 former)
●NSdns.interblock.pl2015-08-15 → 2026-07-12 · 8 obs
● 2026-02-18 17:08:20
○ 2026-02-18 20:28:16
● 2026-02-18 23:08:30
● 2026-05-13 19:01:08
○ 2026-05-13 19:32:18
● 2026-05-13 20:08:40
● 2026-07-12 17:42:36
●NSdns1.interblock.pl2015-08-15 → 2026-07-12 · 8 obs
● 2026-02-18 17:08:20
○ 2026-02-18 20:28:16
● 2026-02-18 23:08:30
● 2026-05-13 19:01:08
○ 2026-05-13 19:32:18
● 2026-05-13 20:08:40
● 2026-07-12 17:42:36
●NSdns2.interblock.pl2015-08-15 → 2026-07-12 · 8 obs
● 2026-02-18 17:08:20
○ 2026-02-18 20:28:16
● 2026-02-18 23:08:30
● 2026-05-13 19:01:08
○ 2026-05-13 19:32:18
● 2026-05-13 20:08:40
● 2026-07-12 17:42:36
●NSfns1.42.pl2021-10-11 → 2026-07-12 · 9 obs
● 2021-10-11 21:19:02
● 2026-02-18 17:08:20
○ 2026-02-18 20:28:16
● 2026-02-18 23:08:30
● 2026-05-13 19:01:08
○ 2026-05-13 19:32:18
● 2026-05-13 20:08:40
● 2026-07-12 17:42:36
●NSfns2.42.pl2021-10-11 → 2026-07-12 · 9 obs
● 2021-10-11 21:19:02
● 2026-02-18 17:08:20
○ 2026-02-18 20:28:16
● 2026-02-18 23:08:30
● 2026-05-13 19:01:08
○ 2026-05-13 19:32:18
● 2026-05-13 20:08:40
● 2026-07-12 17:42:36
●MXpoczta.interblock.pl2015-08-15 → 2026-07-12 · 8 obs
● 2026-02-18 17:08:20
○ 2026-02-18 20:28:16
● 2026-02-18 23:08:30
● 2026-05-13 19:01:08
○ 2026-05-13 19:32:18
● 2026-05-13 20:08:40
● 2026-07-12 17:42:36
○A2001:470:71:21e::12015-08-15 → 2018-03-25 · 4 obs
● 2018-03-25 01:53:48
○ 2021-10-11 21:19:02
○ 2026-07-12 17:42:36
○A81.163.204.1352015-08-15 → 2015-12-08 · 4 obs
● 2015-12-08 04:40:28
○ 2015-12-26 04:19:16
○ 2026-07-12 17:42:36
●A81.163.204.1392015-12-26 → 2026-07-12 · 9 obs
● 2015-12-26 04:19:16
● 2026-02-18 17:08:20
○ 2026-02-18 20:28:16
● 2026-02-18 23:08:30
● 2026-05-13 19:01:08
○ 2026-05-13 19:32:18
● 2026-05-13 20:08:40
● 2026-07-12 17:42:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pl | a-dns.pl, b-dns.pl, d-dns.pl, f-dns.pl... | - |
| interblock.pl | dns2.interblock.pl, dns1.interblock.pl, fns2.42.pl, fns1.42.pl | 5 records |
✅ Authoritative Response
Server:81.163.204.138
NS records: dns2.interblock.pl, dns1.interblock.pl, fns2.42.pl, fns1.42.pl
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for interblock.pl (unsigned zone)
⏱️ Timing
Total: 940ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 81.163.204.139 |
| NS | 4 | fns1.42.pl, dns2.interblock.pl... |
| MX | 1 | poczta.interblock.pl (pri: 10) |
| TXT | 2 | google-site-verification=bHv4r16UW-1uZDh, v=spf1 ip4:81.163.204.131 mx -all |
| SOA | 1 | dns.interblock.pl root.interblock.pl |
📌 Glue Records Collected
Total: 5
In-bailiwick: 2 (dns2.interblock.pl, dns1.interblock.pl)
Out-of-bailiwick: 3 (fns2.42.pl, fns1.42.pl, fns2.42.pl)
Analysis
Hierarchy
interblock.pl sits above undef-f-187.interblock.pl, pppoe-dynamic-a-231.interblock.pl, pppoe-dynamic-a-97.interblock.pl, undef-g-183.interblock.pl and pppoe-dynamic-c-173.interblock.pl as their parent, a role it holds for thousands of other host names too.
IP Addresses
interblock.pl directs to one IP number, which is 81.163.204.139.
Among the host names that share IP numbers with interblock.pl is itbstrona.interblock.pl, as one example.
Name Servers
The authoritative name servers for interblock.pl are fns1.42.pl, fns2.42.pl, dns1.interblock.pl and two others.
There is at least partial name server overlap between interblock.pl and other domains — 40.139.185.in-addr.arpa, czteryogrody.pl, angus-materace.pl and two more among them.
These name servers regularly appear alongside dns2.interblock.pl, ns1.prospect.pl, r0dns.zc.net.pl and 3 other name servers in NS record sets.
Hosts with two IP numbers each:
The A records for fns2.42.pl return 51.38.99.90 and 2001:41d0:701:1100::66c.
Hosts that resolve to one IP address:
fns1.42.pl resolves to the IP address 79.98.145.34.
dns1.interblock.pl resolves to the IP address 81.163.204.134.
dns2.interblock.pl resolves to the IP address 81.163.204.138.
dns.interblock.pl resolves to the IP address 81.163.204.136.
Mail Servers
interblock.pl routes its mail through a single mail server, poczta.interblock.pl.
Like hermes.interblock.pl and poczta.interblock.pl, interblock.pl has the same mail server arrangement as several other domains.
poczta.interblock.pl resolves to 81.163.204.131 and no other IP number.