rt.is - robtex.com
rt.is
| DNSSEC | ⚠️ Not signed | ||||||
| A | 91.208.22.49🇮🇸 VST-Raf-AS91.208.22.0/24 | ||||||
| NS | ns1.stofa.is ⭐ | ||||||
| A | 2001:67c:2114:2::1:50🇮🇸 VST-Raf-AS2001:67c:2114::/48 Verkis-AS | ||||||
| PTR | ns1.stofa.is | ||||||
| A | 91.208.22.50🇮🇸 VST-Raf-AS91.208.22.0/24 | ||||||
| NS | ns2.stofa.is | ||||||
| A | 2001:67c:2114:2::1:52🇮🇸 VST-Raf-AS2001:67c:2114::/48 Verkis-AS | ||||||
| PTR | ns2.stofa.is | ||||||
| A | 91.208.22.52🇮🇸 VST-Raf-AS91.208.22.0/24 | ||||||
| TXT | v=spf1 include:spf.protection.outlook.com -all | ||||||
| SOA | ns1.stofa.ishostmaster@stofa.is 2025-10-28 #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=1784615402 | ||||||
Subdomains
www.rt.is |
Same first word
Similar names
DNS History
12 records (3 active, 9 former)
○NSns0.c.is2008-11-28 → 2008-11-28 · 3 obs
○ 2015-08-26 18:59:12
○ 2026-07-21 06:43:36
○NSns1.c.is2008-11-28 → 2008-11-28 · 3 obs
○ 2015-08-26 18:59:12
○ 2026-07-21 06:43:36
●NSns1.stofa.is2015-08-26 → 2026-07-21 · 3 obs
● 2015-08-26 18:59:12
● 2026-07-21 06:43:36
○NSns2.c.is2008-11-28 → 2008-11-28 · 3 obs
○ 2015-08-26 18:59:12
○ 2026-07-21 06:43:36
●NSns2.stofa.is2015-08-26 → 2026-07-21 · 3 obs
● 2015-08-26 18:59:12
● 2026-07-21 06:43:36
○MXns1.stofa.is2015-08-26 → 2017-10-08 · 5 obs
● 2015-08-26 18:59:12
● 2017-10-08 02:09:20
○ 2019-09-23 13:07:02
○ 2026-07-21 06:43:36
○MXvx-m.itn.is2008-11-28 → 2008-11-28 · 3 obs
○ 2015-08-26 18:59:12
○ 2026-07-21 06:43:36
○MXvx-t.itn.is2008-11-28 → 2008-11-28 · 3 obs
○ 2015-08-26 18:59:12
○ 2026-07-21 06:43:36
○A213.176.143.402008-11-28 → 2008-11-28 · 3 obs
○ 2015-08-26 18:59:12
○ 2026-07-21 06:43:36
○A91.208.22.1002015-08-26 → 2017-10-08 · 5 obs
● 2015-08-26 18:59:12
● 2017-10-08 02:09:20
○ 2019-09-23 13:07:02
○ 2026-07-21 06:43:36
●A91.208.22.492026-02-17 → 2026-07-21 · 3 obs
● 2026-02-17 17:20:08
● 2026-07-21 06:43:36
○A91.208.22.512019-09-23 → 2021-05-04 · 5 obs
● 2019-09-23 13:07:02
● 2021-05-04 20:36:22
○ 2026-02-17 17:20:08
○ 2026-07-21 06:43:36
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| is | a.nic.is, c.nic.is, d.nic.is, e.nic.is... | - |
| rt.is | ns2.stofa.is, ns1.stofa.is | 4 records |
✅ Authoritative Response
Server:91.208.22.52
NS records: ns2.stofa.is, ns1.stofa.is
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rt.is (unsigned zone)
⏱️ Timing
Total: 480ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 91.208.22.49 |
| NS | 2 | ns1.stofa.is, ns2.stofa.is |
| TXT | 1 | v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns1.stofa.is hostmaster.stofa.is |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns2.stofa.is, ns1.stofa.is, ns2.stofa.is...)
Analysis
Hierarchy
rt.is is the parent zone for www.rt.is.
IP Addresses
rt.is resolves to just one IP address, 91.208.22.49.
Two other host names, along with almenna.is, verkis.info and verkis.us, also share IP numbers with rt.is.
Name Servers
rt.is uses two name servers for its delegation: ns1.stofa.is and ns2.stofa.is.
rt.is shares its NS records with other domains, for example av.is, fjarhitun.is, stv.is and two others.
The two host names ns1.stofa.is and ns2.stofa.is each have a pair of IP addresses: ns1.stofa.is has 91.208.22.50 and 2001:67c:2114:2::1:50, and ns2.stofa.is has 91.208.22.52 and 2001:67c:2114:2::1:52.