www.mainframe.nu - robtex.com
www.mainframe.nu
| DNSSEC | ⚠️ Not signed | ||||||
| A | 31.209.2.4🇸🇪 BREDBAND231.209.0.0/18 -BLK | ||||||
| PTR | 31-209-2-4.cust.bredband2.com | ||||||
mainframe.nu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 31.209.2.4🇸🇪 BREDBAND231.209.0.0/18 -BLK | ||||||
| NS | ns1.loopia.se ⭐ | ||||||
| NS | ns2.loopia.se | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| MX | alt1.aspmx.l.google.com(20) | ||||||
| MX | alt2.aspmx.l.google.com(20) | ||||||
| MX | aspmx2.googlemail.com(30) | ||||||
| MX | aspmx3.googlemail.com(30) | ||||||
| TXT | v=spf1 include:_spf.google.com ~all | ||||||
| SOA | ns1.loopia.seregistry@loopia.se serial=1778112000 | ||||||
Same first word
Similar names
DNS History
2 records (1 active, 1 former)
●A31.209.2.42026-03-17 → 2026-05-12 · 3 obs
○ 2018-08-12 13:32:12
● 2026-03-17 06:06:24
● 2026-05-12 14:47:52
● 2026-03-17 06:06:24
● 2026-05-12 14:47:52
○A83.233.86.1022016-12-26 → 2018-08-12 · 4 obs
● 2016-12-26 09:58:36
● 2018-08-12 13:32:12
○ 2026-03-17 06:06:24
○ 2026-05-12 14:47:52
● 2018-08-12 13:32:12
○ 2026-03-17 06:06:24
○ 2026-05-12 14:47:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nu | m.ns.nu, z.ns.nu, c.ns.nu, d.ns.nu... | 12 records |
| mainframe.nu | ns1.loopia.se, ns2.loopia.se | - |
✅ Authoritative Response
Server:93.188.0.20
NS records: ns1.loopia.se, ns2.loopia.se
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1595ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 31.209.2.4 |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (m.ns.nu, m.ns.nu, z.ns.nu...)
Analysis
IP Addresses
www.mainframe.nu points to a single IP address: 31.209.2.4.
Other host names such as hevald.se, mainframe.nu and 31-209-2-4.cust.bredband2.com share IP numbers with www.mainframe.nu.