openclass.tech - robtex.com
openclass.tech
| DNSSEC | ⚠️ Not signed | ||||||
| A | 208.91.197.27🇻🇬 CONFLUENCE-NETWORK-INC208.91.197.0/24 | ||||||
| NS | ns3.worldnic.com ⭐ | ||||||
| A | 162.159.26.110Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | powerdns-prod06.dc.tutum.co | ||||||
| NS | ns4.worldnic.com | ||||||
| A | 162.159.27.124Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | NS3.WORLDNIC.COMnamehost@WORLDNIC.COM serial=125060401 | ||||||
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=1788515052 | ||||||
Same first word
Similar names
Previous names
Next names
DNS History
3 records (3 active, 0 former)
●NSns3.worldnic.com2026-08-18 → 2026-09-04 · 2 obs
● 2026-09-04 10:24:42
●NSns4.worldnic.com2026-08-18 → 2026-09-04 · 2 obs
● 2026-09-04 10:24:42
●A208.91.197.272026-08-18 → 2026-09-04 · 4 obs
○ 2026-09-02 12:45:54
● 2026-09-04 07:38:36
● 2026-09-04 10:24:42
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| tech | ns01.trs-dns.com, ns10.trs-dns.org, ns10.trs-dns.info, ns01.trs-dns.net | 8 records |
| openclass.tech | ns4.worldnic.com, ns3.worldnic.com | - |
✅ Authoritative Response
Server:162.159.27.124
NS records: ns4.worldnic.com, ns3.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for openclass.tech (unsigned zone)
⏱️ Timing
Total: 1324ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 208.91.197.27 |
| NS | 2 | ns4.worldnic.com, ns3.worldnic.com |
| SOA | 1 | NS3.WORLDNIC.COM namehost.WORLDNIC.COM |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns01.trs-dns.com, ns01.trs-dns.com, ns10.trs-dns.org...)
Analysis
IP Addresses
openclass.tech has exactly one IP address — 208.91.197.27.
judgmentsrus.net, productionstampinginc.net, pivotal-lighting.biz plus two other host names have IP numbers in common with openclass.tech.
Name Servers
The NS records for openclass.tech delegate to ns3.worldnic.com and ns4.worldnic.com.
The name server configuration of openclass.tech is shared with other domains, for instance prodentz.online, swiss-oil-gas.com, dolphinfis.com and two others.
At least some of openclass.tech's name servers are shared with other domains, for example providententertainmentgroup.net and olddominionanimalhospital.com.
Each of ns3.worldnic.com and ns4.worldnic.com has one IP address: ns3.worldnic.com uses 162.159.26.110 and ns4.worldnic.com uses 162.159.27.124.