dennisgroups.com - dns.ninja
dennisgroups.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 203.186.4.38🇭🇰 HKBN203.186.0.0/18 Hong Kong Broadband Network Ltd 15/F Trans Asia Centre 18 Kin Hong Street | ||||||
| PTR | mail.ddevelop.net | ||||||
| NS | dns101.register.com ⭐ | ||||||
| A | 162.159.24.117Cloudflare162.159.24.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | dns102.register.com | ||||||
| A | 162.159.25.158Cloudflare162.159.25.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| MX | mail.dennisgroups.com ⭐ | ||||||
| A | 203.186.4.38🇭🇰 HKBN203.186.0.0/18 Hong Kong Broadband Network Ltd 15/F Trans Asia Centre 18 Kin Hong Street | ||||||
| PTR | mail.ddevelop.net | ||||||
| TXT | v=spf1 a ip4:203.186.4.38 ~all | ||||||
| SOA | DNS101.REGISTER.comroot@REGISTER.com serial=125040203 | ||||||
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=1782057210 | ||||||
Subdomains
mail.dennisgroups.com |
Same first word
dennisgroups.com |
DNS History
10 records (4 active, 6 former)
●NSdns101.register.com2026-02-15 → 2026-06-21 · 3 obs
● 2026-02-15 14:30:18
● 2026-06-21 15:58:56
●NSdns102.register.com2026-02-15 → 2026-06-21 · 3 obs
● 2026-02-15 14:30:18
● 2026-06-21 15:58:56
○NSns1.cpu64.com2015-07-11 → 2015-07-11 · 3 obs
○ 2015-11-17 20:40:46
○ 2026-06-21 15:58:56
○NSns1.ddevelop.net2015-07-11 → 2017-10-08 · 4 obs
● 2017-10-08 18:05:04
○ 2026-02-15 14:30:18
○ 2026-06-21 15:58:56
○NSns1.dennisgroups.com2015-07-11 → 2017-01-02 · 4 obs
● 2017-01-02 20:25:52
○ 2017-10-08 18:05:04
○ 2026-06-21 15:58:56
○NSns2.cpu64.com2015-07-11 → 2015-07-11 · 3 obs
○ 2015-11-17 20:40:46
○ 2026-06-21 15:58:56
○NSns2.ddevelop.net2015-11-17 → 2017-10-08 · 5 obs
● 2015-11-17 20:40:46
● 2017-10-08 18:05:04
○ 2026-02-15 14:30:18
○ 2026-06-21 15:58:56
●MXmail.dennisgroups.com2015-07-11 → 2026-06-21 · 2 obs
● 2026-06-21 15:58:56
○A118.140.0.702015-07-11 → 2017-10-08 · 4 obs
● 2017-10-08 18:05:04
○ 2026-02-15 14:30:18
○ 2026-06-21 15:58:56
●A203.186.4.382026-02-15 → 2026-06-21 · 3 obs
● 2026-02-15 14:30:18
● 2026-06-21 15:58:56
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| dennisgroups.com | dns101.register.com, dns102.register.com | 2 records |
✅ Authoritative Response
Server:162.159.24.117
NS records: dns101.register.com, dns102.register.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for dennisgroups.com (unsigned zone)
⏱️ Timing
Total: 130ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 203.186.4.38 |
| NS | 2 | dns102.register.com, dns101.register.com |
| MX | 1 | mail.dennisgroups.com (pri: 10) |
| TXT | 1 | v=spf1 a ip4:203.186.4.38 ~all |
| SOA | 1 | DNS101.REGISTER.com root.REGISTER.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (dns101.register.com, dns102.register.com)
Analysis
Hierarchy
mail.dennisgroups.com is a subdomain of dennisgroups.com.
IP Addresses
dennisgroups.com directs to one IP number, which is 203.186.4.38.
Among the host names that share IP numbers with dennisgroups.com are 203186004038.static.ctinets.com, mail.dennisgroups.com, mail.ytfe.com.hk and two others.
Name Servers
dennisgroups.com is served by two delegated name servers, dns101.register.com and dns102.register.com.
dennisgroups.com has the same name server delegation as a number of other domains, such as m21realty.com, winecountrypoloclub.com, virtgroup.com and two more.
The DNS delegation for dennisgroups.com at least partly coincides with that of other domains, mit.tc being one example.
Both dns101.register.com and dns102.register.com have a single IP address each — dns101.register.com resolves to 162.159.24.117 while dns102.register.com resolves to 162.159.25.158.
Mail Servers
dennisgroups.com routes its mail through a single mail server, mail.dennisgroups.com.
There is one IP number for mail.dennisgroups.com: 203.186.4.38.