jcccourses.com - robtex.com
jcccourses.com
com
| 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=1776301577 | ||||||
Subdomains
www.jcccourses.com |
Same first word
jcccourses.com |
DNS History
8 records (8 active, 0 former)
●NSns1084.ui-dns.biz2026-03-04 → 2026-04-16 · 2 obs
● 2026-04-16 01:27:38
●NSns1090.ui-dns.com2026-03-04 → 2026-04-16 · 2 obs
● 2026-04-16 01:27:38
●NSns1091.ui-dns.org2026-03-04 → 2026-04-16 · 2 obs
● 2026-04-16 01:27:38
●A2001:8d8:100f:f000::2002026-03-04 → 2026-04-16 · 2 obs
● 2026-04-16 01:27:38
●A217.160.0.572026-03-04 → 2026-04-16 · 2 obs
● 2026-04-16 01:27:38
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| jcccourses.com | ns1091.ui-dns.org, ns1084.ui-dns.biz, ns1040.ui-dns.de, ns1090.ui-dns.com | 2 records |
✅ Authoritative Response
Server:217.160.83.91
NS records: ns1091.ui-dns.org, ns1084.ui-dns.biz, ns1040.ui-dns.de, ns1090.ui-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for jcccourses.com (unsigned zone)
⏱️ Timing
Total: 501ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.160.0.57 |
| AAAA | 1 | 2001:8d8:100f:f000::200 |
| NS | 4 | ns1084.ui-dns.biz, ns1090.ui-dns.com... |
| MX | 2 | mx00.ionos.com (pri: 10), mx01.ionos.com (pri: 10) |
| TXT | 1 | v=spf1 include:_spf-us.ionos.com ~all |
| SOA | 1 | ns1090.ui-dns.com hostmaster.1und1.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1090.ui-dns.com, ns1090.ui-dns.com)
Analysis
Hierarchy
jcccourses.com is the parent of www.jcccourses.com.
IP Addresses
jcccourses.com resolves to two IP numbers: 2001:8d8:100f:f000::200 and 217.160.0.57.
other host names including metrowc.com, hmfr.de, inek.at, bonum.online and zahedi.co share IP numbers with jcccourses.com.
Name Servers
jcccourses.com is delegated to four name servers: ns1084.ui-dns.biz, ns1090.ui-dns.com, ns1040.ui-dns.de and ns1091.ui-dns.org.
jcccourses.com at least partially shares name servers with other domains, for instance conact.org, eipl-institute.com, demitri.us, parkett-kappel.de and meltune.com.
These name servers are commonly used with the following name servers: ns1084.ui-dns.com, ns1084.ui-dns.de, ns1084.ui-dns.org, ns1090.ui-dns.biz, ns1090.ui-dns.de, ns1090.ui-dns.org, ns1040.ui-dns.biz, ns1040.ui-dns.com, ns1040.ui-dns.org and ns1091.ui-dns.com.
Host names with two IP numbers:
ns1084.ui-dns.biz points to 2001:8d8:fe:53:0:d9a0:5154:100 and 217.160.81.84; ns1090.ui-dns.com points to 2001:8d8:fe:53:0:d9a0:525a:100 and 217.160.82.90; ns1040.ui-dns.de points to 2001:8d8:fe:53:0:d9a0:5028:100 and 217.160.80.40; ns1091.ui-dns.org points to 2001:8d8:fe:53:0:d9a0:535b:100 and 217.160.83.91.
Mail Servers
Two mail servers handle jcccourses.com: mx00.ionos.com and mx01.ionos.com.
jcccourses.com shares the same mail server setup as other domains, for instance slimjab.com, topalan.com, slidewaysonline.com, thefeeva.com and toddhager.com.
Host names with one IP number:
mx00.ionos.com points to 74.208.5.3
mx01.ionos.com points to 74.208.5.21