erf01.tech - robtex.com
erf01.tech
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1-08.azure-dns.com ⭐ | ||||||
| A | 2603:1061:0:700::8🇺🇸 Microsoft2603:1000::/25 MICROSOFT | ||||||
| PTR | ns1-08.azure-dns.com | ||||||
| A | 13.107.236.8🇺🇸 Microsoft13.104.0.0/14 MICROSOFT | ||||||
| PTR | ns1-08.azure-dns.com | ||||||
| NS | ns2-08.azure-dns.net | ||||||
| A | 2620:1ec:8ec:700::8🇺🇸 Microsoft2620:1ec::/36 MICROSOFT | ||||||
| PTR | ns2-08.azure-dns.net | ||||||
| A | 150.171.21.8🇺🇸 Microsoft150.171.0.0/16 MICROSOFT | ||||||
| PTR | ns2-08.azure-dns.net | ||||||
| NS | ns3-08.azure-dns.org | ||||||
| A | 2a01:111:4000:700::8🇬🇧 Microsoft2a01:111:4000::/36 | ||||||
| PTR | ns3-08.azure-dns.org | ||||||
| A | 204.14.183.8🇺🇸 Microsoft204.14.180.0/22 | ||||||
| PTR | ns3-08.azure-dns.org | ||||||
| NS | ns4-08.azure-dns.info | ||||||
| A | 2620:1ec:bda:700::8🇺🇸 Microsoft2620:1ec::/36 MICROSOFT | ||||||
| PTR | ns4-08.azure-dns.info | ||||||
| A | 208.84.5.8🇺🇸 Microsoft208.84.0.0/21 MICROSOFT | ||||||
| PTR | ns4-08.azure-dns.info | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | ns1-08.azure-dns.comhostmaster@dnb.no serial=1 | ||||||
tech
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns01.trs-dns.com ⭐ | ||||||
| NS | ns.trs-dns.com | ||||||
| NS | ns01.trs-dns.net | ||||||
| NS | ns10.trs-dns.info | ||||||
| NS | ns10.trs-dns.org | ||||||
| SOA | ns.trs-dns.comtrs-ops@tucows.com serial=1778300340 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSns1-08.azure-dns.com2026-03-18 → 2026-05-09 · 2 obs
● 2026-05-09 04:46:06
●NSns2-08.azure-dns.net2026-03-18 → 2026-05-09 · 2 obs
● 2026-05-09 04:46:06
●NSns3-08.azure-dns.org2026-03-18 → 2026-05-09 · 2 obs
● 2026-05-09 04:46:06
●NSns4-08.azure-dns.info2026-03-18 → 2026-05-09 · 2 obs
● 2026-05-09 04:46:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tech | ns01.trs-dns.com, ns10.trs-dns.org, ns10.trs-dns.info, ns01.trs-dns.net | - |
| erf01.tech | ns2-08.azure-dns.net, ns4-08.azure-dns.info, ns1-08.azure-dns.com, ns3-08.azure-dns.org | - |
✅ Authoritative Response
Server:13.107.236.8
NS records: ns2-08.azure-dns.net, ns4-08.azure-dns.info, ns1-08.azure-dns.com, ns3-08.azure-dns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for erf01.tech (unsigned zone)
⏱️ Timing
Total: 818ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns1-08.azure-dns.com, ns2-08.azure-dns.net... |
| MX | 1 | . (pri: 0) |
| TXT | 1 | v=spf1 -all |
| SOA | 1 | ns1-08.azure-dns.com hostmaster.dnb.no |
Analysis
Name Servers
erf01.tech is delegated to four name servers: ns1-08.azure-dns.com, ns4-08.azure-dns.info, ns2-08.azure-dns.net and ns3-08.azure-dns.org.
erf01.tech at least partially shares name servers with other domains such as 164.13.20.in-addr.arpa, moblix.com.br, comed-energyrfp.com, prc.gov and mcleancountyortho.com.
Host names with two IP numbers:
ns1-08.azure-dns.com points to 2603:1061:0:700::8 and 13.107.236.8
ns4-08.azure-dns.info points to 2620:1ec:bda:700::8 and 208.84.5.8
ns2-08.azure-dns.net points to 2620:1ec:8ec:700::8 and 150.171.21.8
ns3-08.azure-dns.org points to 2a01:111:4000:700::8 and 204.14.183.8