certification.nu - dns.ninja
certification.nu
| DNSSEC | ⚠️ Not signed | ||||||
| A | 40.127.203.242🇮🇪 Microsoft40.127.0.0/16 | ||||||
| NS | ns1.loopia.se ⭐ | ||||||
| A | 2a02:250:ffff::20🇸🇪 LOOPIA2a02:250:ffff::/48 | ||||||
| PTR | ns1.loopia.se | ||||||
| A | 93.188.0.20🇸🇪 LOOPIA93.188.0.0/24 SE-LOOPIA Loopia AB | ||||||
| PTR | ns1.loopia.se | ||||||
| NS | ns2.loopia.se | ||||||
| A | 2a02:250:fffe::20🇸🇪 LOOPIA22a02:250:fffe::/48 | ||||||
| PTR | ns2.loopia.se | ||||||
| A | 185.71.156.20🇸🇪 LOOPIA2185.71.156.0/24 | ||||||
| PTR | ns2.loopia.se | ||||||
| MX | aspmx.l.google.com ⭐ | ||||||
| A | 2607:f8b0:4004:c0b::1a🇺🇸 Google2607:f8b0:4004::/48 | ||||||
| PTR | bj-in-f26.1e100.net | ||||||
| A | 142.250.31.26🇺🇸 Google142.250.31.0/24 | ||||||
| PTR | bj-in-f26.1e100.net | ||||||
| SOA | ns1.loopia.seregistry@loopia.se serial=1785974400 | ||||||
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:643abd5d-f7be-49d2-8016-a89f2fed2e0f | ||||||
| TXT | NU zone update: 2026-08-10 06:07:16 +0000 (EPOCH 1786342036) (auto) | ||||||
| SOA | catcher-in-the-rye.nic.nuhostmaster@nic.nu serial=1786342092 | ||||||
Subdomains
rtk587he45lcifov2tujpgvu1e7f97fv.certification.nu |
Same first word
Similar names
DNS History
5 records (4 active, 1 former)
●MXaspmx.l.google.com2015-06-17 → 2026-08-10 · 2 obs
● 2026-08-10 06:16:06
●A40.127.203.2422020-02-18 → 2026-08-10 · 3 obs
● 2020-02-18 22:32:36
● 2026-08-10 06:16:06
○A93.158.121.792015-06-17 → 2017-02-06 · 4 obs
● 2017-02-06 21:40:02
○ 2020-02-18 22:32:36
○ 2026-08-10 06:16:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| nu | y.ns.nu, a.ns.nu, d.ns.nu, c.ns.nu... | - |
| certification.nu | ns1.loopia.se, ns2.loopia.se | - |
✅ Authoritative Response
Server:93.188.0.20
NS records: ns1.loopia.se, ns2.loopia.se
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at nu: Error: DNS query timeout: 185.159.197.150 for DNSKEY nu
⏱️ Timing
Total: 3779ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 40.127.203.242 |
| NS | 2 | ns1.loopia.se, ns2.loopia.se |
| MX | 1 | ASPMX.L.GOOGLE.COM (pri: 1) |
| SOA | 1 | ns1.loopia.se registry.loopia.se |
Analysis
Hierarchy
certification.nu is the parent zone for rtk587he45lcifov2tujpgvu1e7f97fv.certification.nu.
IP Addresses
certification.nu resolves to one IP address: 40.127.203.242.
certification.se, teijs4m4i5osmvgb1eu9flvo61nmem8v.ecomedia.se, certifiering.nu and two other host names share IP numbers with certification.nu.
Name Servers
certification.nu is delegated to two name servers: ns1.loopia.se and ns2.loopia.se.
certification.nu uses the same name servers as several other domains — among them tredjealdern.se, brownfieldserbia.com, civilubro.se and two more.
certification.nu shares at least some of its name servers with other domains, such as pixgallery.com.
ns1.loopia.se and ns2.loopia.se each resolve to two IP addresses: ns1.loopia.se points to 93.188.0.20 and 2a02:250:ffff::20, while ns2.loopia.se points to 185.71.156.20 and 2a02:250:fffe::20.
Mail Servers
Mail for certification.nu is handled by a single mail server, aspmx.l.google.com.
certification.nu uses an identical mail server configuration to several other domains — among them shorehavenmedia.com, 21-lab.com, ownerbox.wpengine.com and two more.
certification.nu has at least partial mail server overlap with other domains such as affordablehomeorganizing.com, abord.org, spbstd.ru and two more.
These mail servers commonly co-occur with mail servers alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and 3 others.
The host aspmx.l.google.com resolves to 142.250.31.26 and 2607:f8b0:4004:c0b::1a — two IP addresses.