opto.nu - robtex.com
opto.nu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 2a02:2350:5:106:c0:4897:8dd0:58ee🇩🇰 ONECOM2a02:2350::/32 One.com A/S | ||||||
| A | 46.30.215.152🇩🇰 ONECOM46.30.208.0/21 One.com A/S | ||||||
| NS | ns01.one.com ⭐ | ||||||
| A | 2001:67c:28cc::10ONECOM-INFRA2001:67c:28cc::/48 | ||||||
| PTR | ns01.one.com | ||||||
| A | 195.206.121.10ONECOM-INFRA195.206.121.0/24 | ||||||
| PTR | ns01.one.com | ||||||
| NS | ns02.one.com | ||||||
| A | 2001:67c:3c0::10🇩🇰 ONECOM2001:67c:3c0::/48 | ||||||
| PTR | ns02.one.com | ||||||
| A | 185.10.11.10ONECOM185.10.11.0/24 | ||||||
| PTR | ns02.one.com | ||||||
| MX | mx1.pub.mailpod13-cph3.one.com ⭐ | ||||||
| A | 185.10.9.42🇩🇰 ONECOM185.10.8.0/22 | ||||||
| PTR | mx1.pub.mailpod13-cph3.one.com | ||||||
| MX | mx2.pub.mailpod13-cph3.one.com ⭐ | ||||||
| A | 185.10.9.43🇩🇰 ONECOM185.10.8.0/22 | ||||||
| PTR | mx2.pub.mailpod13-cph3.one.com | ||||||
| MX | mx3.pub.mailpod13-cph3.one.com ⭐ | ||||||
| A | 185.10.9.44🇩🇰 ONECOM185.10.8.0/22 | ||||||
| PTR | mx3.pub.mailpod13-cph3.one.com | ||||||
| MX | mx4.pub.mailpod13-cph3.one.com ⭐ | ||||||
| A | 185.10.9.45🇩🇰 ONECOM185.10.8.0/22 | ||||||
| PTR | mx4.pub.mailpod13-cph3.one.com | ||||||
| SOA | ns01.one.comhostmaster@one.com 2026-06-10 #1 | ||||||
nu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | catcher-in-the-rye.nic.nu ⭐ | ||||||
| NS | a.ns.nu | ||||||
| NS | c.ns.nu | ||||||
| NS | d.ns.nu | ||||||
| NS | m.ns.nu | ||||||
| NS | y.ns.nu | ||||||
| NS | z.ns.nu | ||||||
| TXT | id:37fb9ddd-9d4d-48ea-b263-fd02ff17575b | ||||||
| TXT | NU zone update: 2026-06-19 18:47:43 +0000 (EPOCH 1781894863) (auto) | ||||||
| SOA | catcher-in-the-rye.nic.nuhostmaster@nic.nu serial=1781894920 | ||||||
Same first word
Similar names
DNS History
14 records (8 active, 6 former)
●NSns01.one.com2026-06-06 → 2026-06-19 · 3 obs
● 2026-06-06 02:37:36
● 2026-06-19 19:14:40
●NSns02.one.com2026-06-06 → 2026-06-19 · 3 obs
● 2026-06-06 02:37:36
● 2026-06-19 19:14:40
○NSns3.binero.se2015-08-03 → 2020-12-25 · 4 obs
● 2020-12-25 06:28:14
○ 2026-06-06 02:37:36
○ 2026-06-19 19:14:40
○NSns4.binero.se2015-08-03 → 2020-12-25 · 4 obs
● 2020-12-25 06:28:14
○ 2026-06-06 02:37:36
○ 2026-06-19 19:14:40
○NSns5.binero.se2015-08-03 → 2020-12-25 · 4 obs
● 2020-12-25 06:28:14
○ 2026-06-06 02:37:36
○ 2026-06-19 19:14:40
○NSns6.binero.se2015-08-03 → 2020-12-25 · 4 obs
● 2020-12-25 06:28:14
○ 2026-06-06 02:37:36
○ 2026-06-19 19:14:40
○NSns7.binero.se2015-08-03 → 2020-12-25 · 4 obs
● 2020-12-25 06:28:14
○ 2026-06-06 02:37:36
○ 2026-06-19 19:14:40
●MXmx1.pub.mailpod13-cph3.one.com2026-06-06 → 2026-06-19 · 2 obs
● 2026-06-19 19:14:40
●MXmx2.pub.mailpod13-cph3.one.com2026-06-06 → 2026-06-19 · 2 obs
● 2026-06-19 19:14:40
●MXmx3.pub.mailpod13-cph3.one.com2026-06-06 → 2026-06-19 · 2 obs
● 2026-06-19 19:14:40
●MXmx4.pub.mailpod13-cph3.one.com2026-06-06 → 2026-06-19 · 2 obs
● 2026-06-19 19:14:40
○A195.74.38.342015-08-03 → 2020-12-25 · 4 obs
● 2020-12-25 06:28:14
○ 2026-06-06 02:37:36
○ 2026-06-19 19:14:40
●A2a02:2350:5:106:c0:4897:8dd0:58ee2026-06-06 → 2026-06-19 · 3 obs
● 2026-06-06 02:37:36
● 2026-06-19 19:14:40
●A46.30.215.1522026-06-06 → 2026-06-19 · 3 obs
● 2026-06-06 02:37:36
● 2026-06-19 19:14:40
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nu | a.ns.nu, c.ns.nu, d.ns.nu, m.ns.nu... | 12 records |
| opto.nu | ns02.one.com, ns01.one.com | - |
✅ Authoritative Response
Server:185.10.11.10
NS records: ns02.one.com, ns01.one.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 1428ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 46.30.215.152 |
| AAAA | 1 | 2a02:2350:5:106:c0:4897:8dd0:58ee |
| NS | 2 | ns02.one.com, ns01.one.com |
| MX | 4 | mx4.pub.mailpod13-cph3.one.com (pri: 10), mx2.pub.mailpod13-cph3.one.com (pri: 10)... |
| SOA | 1 | ns01.one.com hostmaster.one.com |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.ns.nu, a.ns.nu, c.ns.nu...)
Analysis
IP Addresses
opto.nu resolves to the IP addresses 46.30.215.152 and 2a02:2350:5:106:c0:4897:8dd0:58ee
Additional host names — tvj.se, mc-verse.com, lepetitlapinrouge.fr and two others — share IP numbers with opto.nu.
Name Servers
DNS delegation for opto.nu points to two name servers: ns01.one.com and ns02.one.com.
opto.nu shares its name server setup with other domains, including justassociate.com, pikhat.dk, dewilder.be and two others.
ns01.one.com directs to 195.206.121.10 and 2001:67c:28cc::10. ns02.one.com directs to 185.10.11.10 and 2001:67c:3c0::10. Each host name carries two IP addresses.
Mail Servers
opto.nu has four mail servers: mx1.pub.mailpod13-cph3.one.com, mx2.pub.mailpod13-cph3.one.com, mx3.pub.mailpod13-cph3.one.com and mx4.pub.mailpod13-cph3.one.com.
opto.nu shares mail servers — at least in part — with other domains, including unesco-paris.fr, auto-install.com, boline.dk and two others.
mx1.pub.mailpod13-cph3.one.com, mx2.pub.mailpod13-cph3.one.com, mx3.pub.mailpod13-cph3.one.com and mx4.pub.mailpod13-cph3.one.com each resolve to one IP address: mx1.pub.mailpod13-cph3.one.com resolves to 185.10.9.42, mx2.pub.mailpod13-cph3.one.com resolves to 185.10.9.43, mx3.pub.mailpod13-cph3.one.com resolves to 185.10.9.44 and mx4.pub.mailpod13-cph3.one.com resolves to 185.10.9.45.