kernel.is - robtex.com
kernel.is
| DNSSEC | ⚠️ Not signed | ||||||
| A | 51.81.142.141🇺🇸 OVH51.81.128.0/17 Hosting route | ||||||
| PTR | kernel.is | ||||||
| NS | ns.njord.resolver.is ⭐ | ||||||
| A | 198.251.86.87🇺🇸 FRANTECH198.251.86.0/24 More specific route. | ||||||
| PTR | ns.njord.resolver.is | ||||||
| NS | ns.skadi.resolver.is | ||||||
| A | 198.251.90.87FRANTECH198.251.90.0/24 More specific route. | ||||||
| PTR | ns.skadi.resolver.is | ||||||
| MX | mail.hostname.is ⭐ | ||||||
| A | 15.204.6.26🇺🇸 OVH15.204.0.0/17 Hosting route | ||||||
| PTR | ip26.ip-15-204-6.us | ||||||
| TXT | v=spf1 mx mx:kernel.is -all | ||||||
| SOA | ns.njord.resolver.isnoc@resolver.is 2026-01-03 #2 | ||||||
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=1778375401 | ||||||
PTR for
Same first word
Similar names
DNS History
9 records (4 active, 5 former)
○NSns.mimir.hacked.is2019-12-13 → 2021-06-30 · 4 obs
● 2021-06-30 00:37:30
○ 2026-02-21 11:31:32
○ 2026-05-10 01:39:20
●NSns.njord.resolver.is2026-02-21 → 2026-05-10 · 3 obs
● 2026-02-21 11:31:32
● 2026-05-10 01:39:20
●NSns.skadi.resolver.is2026-02-21 → 2026-05-10 · 3 obs
● 2026-02-21 11:31:32
● 2026-05-10 01:39:20
○NSns.tyr.hacked.is2019-12-13 → 2021-06-30 · 4 obs
● 2021-06-30 00:37:30
○ 2026-02-21 11:31:32
○ 2026-05-10 01:39:20
●MXmail.hostname.is2026-02-21 → 2026-05-10 · 3 obs
● 2026-02-21 11:31:32
● 2026-05-10 01:39:20
○MXmail.kernel.is2019-12-13 → 2021-06-30 · 4 obs
● 2021-06-30 00:37:30
○ 2026-02-21 11:31:32
○ 2026-05-10 01:39:20
○A51.15.42.02019-12-13 → 2019-12-13 · 3 obs
○ 2021-06-30 00:37:30
○ 2026-05-10 01:39:20
○A51.222.235.262021-06-30 → 2021-06-30 · 4 obs
● 2021-06-30 00:37:30
○ 2026-02-21 11:31:32
○ 2026-05-10 01:39:20
●A51.81.142.1412026-02-21 → 2026-05-10 · 3 obs
● 2026-02-21 11:31:32
● 2026-05-10 01:39:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| is | a.nic.is, c.nic.is, d.nic.is, e.nic.is... | - |
| kernel.is | ns.njord.resolver.is, ns.skadi.resolver.is | 4 records |
✅ Authoritative Response
Server:198.251.86.87
NS records: ns.njord.resolver.is, ns.skadi.resolver.is
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kernel.is (unsigned zone)
⏱️ Timing
Total: 2140ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 51.81.142.141 |
| NS | 2 | ns.skadi.resolver.is, ns.njord.resolver.is |
| MX | 1 | mail.hostname.is (pri: 10) |
| TXT | 1 | v=spf1 mx mx:kernel.is -all |
| SOA | 1 | ns.njord.resolver.is noc.resolver.is |
📌 Glue Records Collected
Total: 4
Out-of-bailiwick: 4 (ns.njord.resolver.is, ns.njord.resolver.is, ns.skadi.resolver.is...)
Analysis
IP Addresses
kernel.is points to a single IP address: 51.81.142.141.
Name Servers
Two name servers ns.njord.resolver.is and ns.skadi.resolver.is handle the delegation for kernel.is.
kernel.is uses the same name server setup as other domains, for example hostname.is and resolver.is.
Host names with one IP number:
ns.njord.resolver.is points to 198.251.86.87; ns.skadi.resolver.is points to 198.251.90.87.
Mail Servers
The mail.hostname.is mail server handles kernel.is.
The mail server setup for kernel.is is the same as that of other domains, for instance hostname.is.
mail.hostname.is points to a single IP number: 15.204.6.26.