obtcourses.com - dns.ninja
obtcourses.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=1790378294 | ||||||
Same first word
obtcourses.com |
Similar names
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DNS History
7 records (6 active, 1 former)
●NSns67.1and1.co.uk2015-04-25 → 2026-09-25 · 2 obs
● 2026-09-25 23:42:56
●NSns68.1and1.co.uk2015-04-25 → 2026-09-25 · 2 obs
● 2026-09-25 23:42:56
●MXmx00.1and1.co.uk2015-04-25 → 2026-09-25 · 2 obs
● 2026-09-25 23:42:56
●MXmx01.1and1.co.uk2015-04-25 → 2026-09-25 · 2 obs
● 2026-09-25 23:42:56
●A2001:8d8:100f:f000::2a42026-09-11 → 2026-09-25 · 3 obs
● 2026-09-11 01:12:36
● 2026-09-25 23:42:56
●A217.160.0.152017-06-28 → 2026-09-25 · 3 obs
● 2017-06-28 16:11:18
● 2026-09-25 23:42:56
○A217.160.47.82015-04-25 → 2016-11-26 · 4 obs
● 2016-11-26 15:17:40
○ 2017-06-28 16:11:18
○ 2026-09-25 23:42:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | i.gtld-servers.net, j.gtld-servers.net, k.gtld-servers.net, l.gtld-servers.net... | - |
| obtcourses.com | ns68.1and1.co.uk, ns67.1and1.co.uk | - |
✅ Authoritative Response
Server:185.132.33.30
NS records: ns68.1and1.co.uk, ns67.1and1.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for obtcourses.com (unsigned zone)
⏱️ Timing
Total: 736ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.160.0.15 |
| AAAA | 1 | 2001:8d8:100f:f000::2a4 |
| NS | 2 | ns67.1and1.co.uk, ns68.1and1.co.uk |
| MX | 2 | mx00.1and1.co.uk (pri: 10), mx01.1and1.co.uk (pri: 10) |
| SOA | 1 | ns67.1and1.co.uk hostmaster.1and1.co.uk |
Analysis
IP Addresses
obtcourses.com directs to two IP numbers, 217.160.0.15 and 2001:8d8:100f:f000::2a4
Two other host names, along with civitys.com, stadermann.net and heimpel-jordan.de, also share IP numbers with obtcourses.com.
Name Servers
DNS delegation for obtcourses.com points to two name servers: ns67.1and1.co.uk and ns68.1and1.co.uk.
obtcourses.com shares its NS records with other domains, for example truphone.co, greenurbantech.com, signbslteacher.org.uk and two others.
obtcourses.com partially shares its NS delegation with several other domains, including colda.com, frictionfree.com, it1.co.uk and two others.
In DNS configurations, these name servers often share authority with ns-uk.1and1-dns.biz, ns-uk.1and1-dns.com, ns-uk.1and1-dns.org and 5 other name servers.
ns67.1and1.co.uk directs to 185.132.32.31 and 2607:f1c0:fe:53:185:132:32:31. ns68.1and1.co.uk directs to 185.132.33.30 and 2607:f1c0:fe:53:185:132:33:30. Each host name carries two IP addresses.
Mail Servers
obtcourses.com is served by two mail servers, mx00.1and1.co.uk and mx01.1and1.co.uk.
Among the domains sharing a mail server setup with obtcourses.com are americancircu(0x736578)treme.com, socoach.co.uk, rd.curryguide.com and two others.
There is at least a partial MX overlap between obtcourses.com and other domains, including icanpayments.net, icqapp.org, screedit.co.uk and two others.
mx00.1and1.co.uk resolves to 212.227.15.171. mx01.1and1.co.uk resolves to 212.227.15.188. Both host names point to a single IP number.