certus.app - robtex.com
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certus.app
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| A | 4.180.104.106🇳🇱 Microsoft | ||||||
| NS | ns1-04.azure-dns.com ⭐ | ||||||
| A | 2603:1061:0:700::4🇺🇸 Microsoft | ||||||
| PTR | ns1-04.azure-dns.com | ||||||
| A | 13.107.236.4🇺🇸 Microsoft | ||||||
| PTR | ns1-04.azure-dns.com | ||||||
| NS | ns2-04.azure-dns.net | ||||||
| A | 2620:1ec:8ec:700::4🇺🇸 Microsoft | ||||||
| PTR | ns2-04.azure-dns.net | ||||||
| A | 150.171.21.4🇺🇸 Microsoft | ||||||
| PTR | ns2-04.azure-dns.net | ||||||
| NS | ns3-04.azure-dns.org | ||||||
| A | 2a01:111:4000:700::4🇬🇧 Microsoft | ||||||
| PTR | ns3-04.azure-dns.org | ||||||
| A | 204.14.183.4🇺🇸 Microsoft | ||||||
| PTR | ns3-04.azure-dns.org | ||||||
| NS | ns4-04.azure-dns.info | ||||||
| A | 2620:1ec:bda:700::4🇺🇸 Microsoft | ||||||
| PTR | ns4-04.azure-dns.info | ||||||
| A | 208.84.5.4🇺🇸 Microsoft | ||||||
| PTR | ns4-04.azure-dns.info | ||||||
| MX | certus-app.mail.protection.outlook.com ⭐ | ||||||
| TXT | MS=ms23434477 | ||||||
| TXT | v=spf1 include:spf.protection.outlook.com -all | ||||||
| SOA | ns1-04.azure-dns.comazuredns-hostmaster@microsoft.com serial=1 | ||||||
app
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=101427 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSns1-04.azure-dns.com2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 05:19:52
●NSns2-04.azure-dns.net2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 05:19:52
●NSns3-04.azure-dns.org2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 05:19:52
●NSns4-04.azure-dns.info2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 05:19:52
●MXcertus-app.mail.protection.outlook.com2026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 05:19:52
●A4.180.104.1062026-02-18 → 2026-02-18 · 2 obs
● 2026-02-18 05:19:52
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| certus.app | ns3-04.azure-dns.org, ns4-04.azure-dns.info, ns1-04.azure-dns.com, ns2-04.azure-dns.net | - |
✅ Authoritative Response
Server: 204.14.183.4
NS records: ns3-04.azure-dns.org, ns4-04.azure-dns.info, ns1-04.azure-dns.com, ns2-04.azure-dns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for certus.app (unsigned zone)
⏱️ Timing
Total: 122ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 4.180.104.106 |
| NS | 4 | ns1-04.azure-dns.com, ns2-04.azure-dns.net... |
| MX | 1 | certus-app.mail.protection.outlook.com ( |
| TXT | 2 | MS=ms23434477, v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | ns1-04.azure-dns.com azuredns-hostmaster |
AI analysis
certus.app resolves to a single IP address: 4.180.104.106.
certus.app is delegated to four name servers: ns1-04.azure-dns.com, ns4-04.azure-dns.info, ns2-04.azure-dns.net and ns3-04.azure-dns.org.
certus.app at least partially shares name servers with other domains, including siriusengineers.com, phonakpro.de, epos-audio.audio, solareh.com and unifian.edu.br.
Hosts with two IP numbers:
Host ns1-04.azure-dns.com points to 2603:1061:0:700::4 and 13.107.236.4
Host ns4-04.azure-dns.info points to 2620:1ec:bda:700::4 and 208.84.5.4
Host ns2-04.azure-dns.net points to 2620:1ec:8ec:700::4 and 150.171.21.4
Host ns3-04.azure-dns.org points to 2a01:111:4000:700::4 and 204.14.183.4
certus.app is handled by a single mail server, certus-app.mail.protection.outlook.com.