tower.is - robtex.com
tower.is
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a0a:4cc0:40:12c::1🇦🇹 netcup-AS2a0a:4cc0:40::/43 | ||||||
| PTR | mx2.crontab.nl | ||||||
| A | 152.53.105.53🇦🇹 netcup-AS152.53.104.0/22 | ||||||
| NS | ns1.tower.is ⭐ | ||||||
| A | 2a01:4f8:c012:f3ca::1🇩🇪 Hetzner2a01:4f8::/32 HETZNER-IPv6-BLK | ||||||
| A | 91.107.217.116🇩🇪 Hetzner91.107.128.0/17 HETZNER-DC | ||||||
| PTR | static.116.217.107.91.clients.your-server.de | ||||||
| NS | ns2.tower.is | ||||||
| A | 2a0a:4cc0:40:12c::1🇦🇹 netcup-AS2a0a:4cc0:40::/43 | ||||||
| PTR | mx2.crontab.nl | ||||||
| A | 152.53.105.53🇦🇹 netcup-AS152.53.104.0/22 | ||||||
| PTR | mx2.crontab.nl | ||||||
| NS | ns3.tower.is | ||||||
| A | 2a0e:fd40:103:211::1🇳🇱 BAKKER-IT-AS2a0e:fd40::/29 | ||||||
| A | 45.139.163.103🇳🇱 BAKKER-IT-AS45.139.163.0/24 | ||||||
| MX | mx1.tower.is ⭐ | ||||||
| A | 2a0a:4cc0:c1:3bb8::1🇦🇹 netcup-AS2a0a:4cc0:c0::/43 | ||||||
| PTR | mx1.tower.is | ||||||
| A | 159.195.22.142🇩🇰 netcup-AS159.195.20.0/22 | ||||||
| PTR | mx1.tower.is | ||||||
| TXT | v=spf1 mx ip4:193.36.132.148 ip6:2a07:e040:2:327::/64 -all | ||||||
| SOA | ns1.tower.ishostmaster@tower.is 2026-03-05 #1 | ||||||
is
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.is ⭐ | ||||||
| NS | c.nic.is | ||||||
| NS | d.nic.is | ||||||
| NS | e.nic.is | ||||||
| NS | f.nic.is | ||||||
| SOA | a.nic.ishostmaster@isnic.is serial=1775982602 | ||||||
Subdomains
Same first word
Similar names
DNS History
18 records (6 active, 12 former)
○NSns0.1984.is2015-07-22 → 2020-01-08 · 4 obs
● 2020-01-08 17:01:30
○ 2026-04-04 03:15:38
○ 2026-04-12 09:00:26
○NSns1.1984.is2015-07-22 → 2020-01-08 · 4 obs
● 2020-01-08 17:01:30
○ 2026-04-04 03:15:38
○ 2026-04-12 09:00:26
●NSns1.tower.is2026-04-04 → 2026-04-12 · 3 obs
● 2026-04-04 03:15:38
● 2026-04-12 09:00:26
○NSns2.1984.is2015-07-22 → 2020-01-08 · 4 obs
● 2020-01-08 17:01:30
○ 2026-04-04 03:15:38
○ 2026-04-12 09:00:26
●NSns2.tower.is2026-04-04 → 2026-04-12 · 3 obs
● 2026-04-04 03:15:38
● 2026-04-12 09:00:26
●NSns3.tower.is2026-04-04 → 2026-04-12 · 3 obs
● 2026-04-04 03:15:38
● 2026-04-12 09:00:26
○MXalt1.aspmx.l.google.com2015-07-22 → 2020-01-08 · 4 obs
● 2020-01-08 17:01:30
○ 2026-04-04 03:15:38
○ 2026-04-12 09:00:26
○MXalt2.aspmx.l.google.com2015-07-22 → 2020-01-08 · 4 obs
● 2020-01-08 17:01:30
○ 2026-04-04 03:15:38
○ 2026-04-12 09:00:26
○MXaspmx.l.google.com2015-07-22 → 2020-01-08 · 4 obs
● 2020-01-08 17:01:30
○ 2026-04-04 03:15:38
○ 2026-04-12 09:00:26
○MXaspmx2.googlemail.com2015-07-22 → 2020-01-08 · 4 obs
● 2020-01-08 17:01:30
○ 2026-04-04 03:15:38
○ 2026-04-12 09:00:26
○MXaspmx3.googlemail.com2015-07-22 → 2020-01-08 · 4 obs
● 2020-01-08 17:01:30
○ 2026-04-04 03:15:38
○ 2026-04-12 09:00:26
○MXaspmx4.googlemail.com2015-07-22 → 2020-01-08 · 4 obs
● 2020-01-08 17:01:30
○ 2026-04-04 03:15:38
○ 2026-04-12 09:00:26
○MXaspmx5.googlemail.com2015-07-22 → 2020-01-08 · 4 obs
● 2020-01-08 17:01:30
○ 2026-04-04 03:15:38
○ 2026-04-12 09:00:26
●MXmx1.tower.is2026-04-04 → 2026-04-12 · 3 obs
● 2026-04-04 03:15:38
● 2026-04-12 09:00:26
●A152.53.105.532026-04-04 → 2026-04-12 · 3 obs
● 2026-04-04 03:15:38
● 2026-04-12 09:00:26
○A185.112.145.1402020-01-08 → 2020-01-08 · 4 obs
● 2020-01-08 17:01:30
○ 2026-04-04 03:15:38
○ 2026-04-12 09:00:26
●A2a0a:4cc0:40:12c::12026-04-04 → 2026-04-12 · 3 obs
● 2026-04-04 03:15:38
● 2026-04-12 09:00:26
○A93.95.229.142015-07-22 → 2017-03-25 · 4 obs
● 2017-03-25 02:43:56
○ 2020-01-08 17:01:30
○ 2026-04-12 09:00:26
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| is | a.nic.is, c.nic.is, d.nic.is, e.nic.is... | - |
| tower.is | ns1.tower.is, ns2.tower.is, ns3.tower.is | 6 records |
✅ Authoritative Response
Server:91.107.217.116
NS records: ns1.tower.is, ns2.tower.is, ns3.tower.is
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 871ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 152.53.105.53 |
| AAAA | 1 | 2a0a:4cc0:40:12c::1 |
| NS | 3 | ns1.tower.is, ns2.tower.is... |
| MX | 1 | mx1.tower.is (pri: 0) |
| TXT | 1 | v=spf1 mx ip4:193.36.132.148 ip6:2a07:e0 |
| SOA | 1 | ns1.tower.is hostmaster.tower.is |
📌 Glue Records Collected
Total: 6
In-bailiwick: 6 (ns1.tower.is, ns1.tower.is, ns2.tower.is...)
Analysis
Hierarchy
tower.is is a parent of mx1.tower.is, ns3.tower.is, ns2.tower.is and ns1.tower.is.
IP Addresses
Two IP numbers are pointed to by tower.is: 2a0a:4cc0:40:12c::1 and 152.53.105.53.
Other host names, for instance ns2.tower.is and crontab.nl, share IP numbers with tower.is.
Name Servers
tower.is is delegated to three name servers ns1.tower.is, ns2.tower.is and ns3.tower.is.
tower.is shares name servers with other domains at least partially, for example crontab.nl.
Host names with two IP numbers:
ns1.tower.is points to 2a01:4f8:c012:f3ca::1 and 91.107.217.116; ns2.tower.is points to 2a0a:4cc0:40:12c::1 and 152.53.105.53; ns3.tower.is points to 2a0e:fd40:103:211::1 and 45.139.163.103.
Mail Servers
tower.is is handled by a single mail server, mx1.tower.is.
mx1.tower.is resolves to two IPs: 2a0a:4cc0:c1:3bb8::1 and 159.195.22.142.