openclass.tech - dns.ninja
openclass.tech
| DNSSEC | ⚠️ Not signed | ||||||
| A | 208.91.197.27🇻🇬 CONFLUENCE-NETWORK-INC208.91.197.0/24 Confluence Networks Route Object | ||||||
| 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=1790380736 | ||||||
Same first word
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DNS History
3 records (3 active, 0 former)
●NSns3.worldnic.com2026-08-18 → 2026-09-26 · 2 obs
● 2026-09-26 00:34:08
●NSns4.worldnic.com2026-08-18 → 2026-09-26 · 2 obs
● 2026-09-26 00:34:08
●A208.91.197.272026-08-18 → 2026-09-26 · 4 obs
○ 2026-09-02 12:45:54
● 2026-09-04 07:38:36
● 2026-09-26 00:34:08
🔍 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 | ns3.worldnic.com, ns4.worldnic.com | - |
✅ Authoritative Response
Server:162.159.26.110
NS records: ns3.worldnic.com, ns4.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for openclass.tech (unsigned zone)
⏱️ Timing
Total: 2392ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 208.91.197.27 |
| NS | 2 | ns3.worldnic.com, ns4.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 points to a single IP number: 208.91.197.27.
Additional host names — judgmentsrus.net, productionstampinginc.net, pivotal-lighting.biz and two others — share IP numbers with openclass.tech.
Name Servers
Two name servers handle the delegation for openclass.tech: ns3.worldnic.com and ns4.worldnic.com.
openclass.tech shares its name server setup with other domains, including prodentz.online, swiss-oil-gas.com, dolphinfis.com and two others.
Some name servers delegated to openclass.tech are also used by other domains, notably providententertainmentgroup.net and olddominionanimalhospital.com.
ns3.worldnic.com → 162.159.26.110 and ns4.worldnic.com → 162.159.27.124: one IP number per host name.