courseware.net - robtex.com
courseware.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 208.91.197.27🇻🇬 CONFLUENCE-NETWORK-INC208.91.197.0/24 Confluence Networks Route Object | ||||||
| NS | ns99.worldnic.com ⭐ | ||||||
| A | 162.159.26.217Cloudflare162.159.26.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns100.worldnic.com | ||||||
| A | 162.159.27.155Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| SOA | NS99.WORLDNIC.COMnamehost@WORLDNIC.COM serial=121061416 | ||||||
net
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1784039707 | ||||||
Same first word
Similar names
DNS History
7 records (3 active, 4 former)
○NSns.buydomains.com2015-07-08 → 2017-04-02 · 4 obs
● 2017-04-02 10:46:22
○ 2026-03-30 10:56:44
○ 2026-07-14 15:04:14
●NSns100.worldnic.com2026-03-30 → 2026-07-14 · 3 obs
● 2026-03-30 10:56:44
● 2026-07-14 15:04:14
●NSns99.worldnic.com2026-03-30 → 2026-07-14 · 3 obs
● 2026-03-30 10:56:44
● 2026-07-14 15:04:14
○A141.8.225.1242015-11-23 → 2016-07-13 · 5 obs
● 2015-11-23 01:42:28
● 2016-07-13 22:56:08
○ 2017-04-02 10:46:22
○ 2026-07-14 15:04:14
○A207.148.248.1432017-04-02 → 2017-04-02 · 4 obs
● 2017-04-02 10:46:22
○ 2026-03-30 10:56:44
○ 2026-07-14 15:04:14
●A208.91.197.272026-03-30 → 2026-07-14 · 3 obs
● 2026-03-30 10:56:44
● 2026-07-14 15:04:14
○A50.63.202.1042015-07-08 → 2015-07-08 · 3 obs
○ 2015-11-23 01:42:28
○ 2026-07-14 15:04:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| courseware.net | ns99.worldnic.com, ns100.worldnic.com | - |
✅ Authoritative Response
Server:162.159.26.217
NS records: ns99.worldnic.com, ns100.worldnic.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for courseware.net (unsigned zone)
⏱️ Timing
Total: 301ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 208.91.197.27 |
| NS | 2 | ns100.worldnic.com, ns99.worldnic.com |
| SOA | 1 | NS99.WORLDNIC.COM namehost.WORLDNIC.COM |
Analysis
IP Addresses
courseware.net resolves to just one IP address, 208.91.197.27.
Two other host names, along with thebegingroup.com, capemedical.com and lastovo.com, also share IP numbers with courseware.net.
Name Servers
courseware.net uses two name servers for its delegation: ns100.worldnic.com and ns99.worldnic.com.
courseware.net shares its NS records with other domains, for example nwsenterprises.com, oertherfoods.com, directmkts.com and two others.
courseware.net and other domains like contacts-direct.biz, carloscastaneda.com and flagship.support share some name servers
Both ns100.worldnic.com and ns99.worldnic.com have a single IP address each — ns100.worldnic.com resolves to 162.159.27.155 while ns99.worldnic.com resolves to 162.159.26.217.