hofdaskoli.is - robtex.com
hofdaskoli.is
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=1786273801 | ||||||
Subdomains
www.hofdaskoli.is |
Same first word
hofdaskoli.is |
DNS History
12 records (12 active, 0 former)
●MXalt1.aspmx.l.google.com2026-02-21 → 2026-08-09 · 2 obs
● 2026-08-09 11:49:06
●MXalt2.aspmx.l.google.com2026-02-21 → 2026-08-09 · 2 obs
● 2026-08-09 11:49:06
●MXaspmx.l.google.com2026-02-21 → 2026-08-09 · 2 obs
● 2026-08-09 11:49:06
●MXaspmx2.googlemail.com2026-02-21 → 2026-08-09 · 2 obs
● 2026-08-09 11:49:06
●MXaspmx3.googlemail.com2026-02-21 → 2026-08-09 · 2 obs
● 2026-08-09 11:49:06
●MXaspmx4.googlemail.com2026-02-21 → 2026-08-09 · 2 obs
● 2026-08-09 11:49:06
●MXaspmx5.googlemail.com2026-02-21 → 2026-08-09 · 2 obs
● 2026-08-09 11:49:06
●A52.49.138.1812026-02-21 → 2026-08-09 · 2 obs
● 2026-08-09 11:49:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| is | a.nic.is, c.nic.is, d.nic.is, e.nic.is... | - |
| hofdaskoli.is | ns3.stefna.is, ns1.stefna.is, ns2.stefna.is | 5 records |
✅ Authoritative Response
Server:18.195.8.151
NS records: ns3.stefna.is, ns1.stefna.is, ns2.stefna.is
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for hofdaskoli.is (unsigned zone)
⏱️ Timing
Total: 940ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 52.49.138.181 |
| NS | 3 | ns2.stefna.is, ns1.stefna.is... |
| MX | 7 | aspmx5.googlemail.com (pri: 30), alt1.aspmx.l.google.com (pri: 20)... |
| TXT | 2 | v=spf1 include:_spf.google.com include:s, google-site-verification=6ipSOwO4BHpsEPZ |
| SOA | 1 | ns0.stefna.is root.stefna.is |
📌 Glue Records Collected
Total: 5
Out-of-bailiwick: 5 (ns3.stefna.is, ns2.stefna.is, ns1.stefna.is...)
Analysis
Hierarchy
hofdaskoli.is is a parent domain of www.hofdaskoli.is.
IP Addresses
hofdaskoli.is points to a single IP number: 52.49.138.181.
Additional host names — umhyggja.is, icefresh.de, virk.is and two others — share IP numbers with hofdaskoli.is.
Name Servers
hofdaskoli.is has four authoritative name servers: ns0.stefna.is, ns1.stefna.is, ns2.stefna.is and ns3.stefna.is.
hofdaskoli.is shares at least some of its name servers with other domains, including exedra.is, northiceland.is, thorsport.is and two others.
These name servers are frequently seen alongside the name servers dvalinn.rhnet.is.
Host names with two IP numbers:
ns1.stefna.is directs traffic to 18.195.8.151 and 2a05:d014:d:b502::5.
ns2.stefna.is directs traffic to 54.77.77.174 and 2a05:d018:ed6:eb0c:e8a1::5.
Host names pointing to a single IP address:
ns0.stefna.is has the IP address 54.171.111.148.
ns3.stefna.is has the IP address 185.112.146.139.
Mail Servers
hofdaskoli.is is handled by 7 mail servers: aspmx2.googlemail.com, aspmx3.googlemail.com, aspmx4.googlemail.com and 4 other.
hofdaskoli.is shares mail servers — at least in part — with other domains, including ns500731.ns500754.ns500671.ns500705.ns500731.ns500671.ns500704.ns500671.ns500666.ns500666.ns500291.ns500131.lustychickser.com, motocity.fr, pbr.co.in and two others.
These mail servers are frequently used alongside mail servers aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com and 3 other.
Host names with two IP numbers:
aspmx2.googlemail.com directs traffic to 192.178.234.26 and 2800:3f0:4003:c14::1a.
aspmx3.googlemail.com directs traffic to 172.253.116.26 and 2a00:1450:400b:c02::1b.
aspmx4.googlemail.com directs traffic to 192.178.223.26 and 2a00:1450:4009:c0f::1b.
aspmx5.googlemail.com directs traffic to 172.253.157.26 and 2a00:1450:400c:c23::1a.
aspmx.l.google.com directs traffic to 172.253.122.26 and 2607:f8b0:4004:c17::1a.
alt1.aspmx.l.google.com directs traffic to 192.178.234.27 and 2800:3f0:4003:c14::1a.
alt2.aspmx.l.google.com directs traffic to 172.253.116.27 and 2a00:1450:400b:c02::1a.
Both aspmx2.googlemail.com and alt1.aspmx.l.google.com resolve to 2800:3f0:4003:c14::1a IP addresses each.