phdhk.net - robtex.com
phdhk.net
| DNSSEC | ⚠️ Not signed | ||||||
| A | 116.251.204.85🇭🇰 ICDSoft116.251.204.0/24 ICD Soft Ltd 39-41 Tsvetna gradina str | ||||||
| PTR | s221.sureserver.com | ||||||
| NS | ns1.s221.sureserver.com ⭐ | ||||||
| A | 116.251.204.85🇭🇰 ICDSoft116.251.204.0/24 ICD Soft Ltd 39-41 Tsvetna gradina str | ||||||
| PTR | s221.sureserver.com | ||||||
| NS | ns2.s221.sureserver.com | ||||||
| A | 116.251.206.45🇭🇰 ICDSoft116.251.206.0/24 ICD Soft Ltd 39-41 Tsvetna gradina str | ||||||
| PTR | ns2.s221.sureserver.com | ||||||
| MX | mail.phdhk.net ⭐ | ||||||
| A | 116.251.204.85🇭🇰 ICDSoft116.251.204.0/24 ICD Soft Ltd 39-41 Tsvetna gradina str | ||||||
| PTR | s221.sureserver.com | ||||||
| TXT | v=spf1 a mx include:s221.smtp-spf.sureserver.com ~all | ||||||
| SOA | ns1.s221.sureserver.comhostmaster@phdhk.net serial=1774291217 | ||||||
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=1771291465 | ||||||
Subdomains
mail.phdhk.net |
Same first word
phdhk.net |
Similar names
DNS History
5 records (4 active, 1 former)
●NSns1.s221.sureserver.com2015-08-02 → 2026-03-23 · 2 obs
● 2026-03-23 19:02:06
●NSns2.s221.sureserver.com2015-08-02 → 2026-03-23 · 2 obs
● 2026-03-23 19:02:06
●MXmail.phdhk.net2015-08-02 → 2026-03-23 · 2 obs
● 2026-03-23 19:02:06
●A116.251.204.852015-12-08 → 2026-03-23 · 3 obs
● 2015-12-08 17:50:52
● 2026-03-23 19:02:06
○A116.251.206.2232015-08-02 → 2015-08-02 · 3 obs
○ 2015-12-08 17:50:52
○ 2026-03-23 19:02:06
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| net | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| phdhk.net | ns1.s221.sureserver.com, ns2.s221.sureserver.com | - |
✅ Authoritative Response
Server:116.251.206.45
NS records: ns1.s221.sureserver.com, ns2.s221.sureserver.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for phdhk.net (unsigned zone)
⏱️ Timing
Total: 1056ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 116.251.204.85 |
| NS | 2 | ns1.s221.sureserver.com, ns2.s221.sureserver.com |
| MX | 1 | mail.phdhk.net (pri: 0) |
| TXT | 1 | v=spf1 a mx include:s221.smtp-spf.surese |
| SOA | 1 | ns1.s221.sureserver.com hostmaster.phdhk |
Analysis
Hierarchy
mail.phdhk.net has phdhk.net as its parent.
IP Addresses
phdhk.net maps to IP address 116.251.204.85.
Other host names, for instance bldg-materials.com.hk, mail.tm-jew.com, kerikeriweather.co.nz, mail.us-cn.org and mail.hkcea.edu.hk share IP numbers with phdhk.net.
Name Servers
Two name servers ns1.s221.sureserver.com and ns2.s221.sureserver.com are delegated to phdhk.net.
phdhk.net uses the same name server configuration as other domains, such as solvil-titus.com, gpimcn.com, solvil-et-titus.com, rosewoodhkshop.com and maxipro.com.
phdhk.net shares name servers with other domains at least partially, for instance timeislove.com.cn, timeislove.com.hk, hotwaterleichhardt.com.au and dcslinks.com.
These name servers are commonly used with ns1.s217.sureserver.com and ns2.s217.sureserver.com.
Host names with a single IP address:
ns1.s221.sureserver.com points to 116.251.204.85
ns2.s221.sureserver.com points to 116.251.206.45
Mail Servers
phdhk.net is handled by a single mail server, mail.phdhk.net.
mail.phdhk.net points to one IP number: 116.251.204.85.