medfirst.com.cn - robtex.com
medfirst.com.cn
com.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ ⚠️ Not in parent delegation | ||||||
| NS | b.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | c.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | cns.cernet.net ⚠️ Not in parent delegation | ||||||
| NS | d.dns.cn ⚠️ Not in parent delegation | ||||||
| NS | e.dns.cn ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2030512954 | ||||||
Previously NS for
medfirst.com.cn |
Subdomains
Same first word
medfirst.com.tw |
medfirst.biz |
medfirst.com |
medfirst.co.uk |
medfirst.org |
medfirst.com.cn |
medfirst.com.au |
medfirst.net |
Similar names
firstmed.ch |
mdftires.com |
firstmed.clinic |
firstmed.pe |
fredtims.com |
firstmed.cn |
demfirst.com |
firstmed.pl |
firstmed.co.uk |
firstmed.me |
firstedm.com |
firstmed.com |
firstmed.ro |
firstmed.com.pe |
mdsertif.com |
firstmed.de |
DNS History
9 records (6 active, 3 former)
●NSdns1.medfirst.com.cn2018-09-01 → 2026-04-13 · 2 obs
● 2026-04-13 18:44:00
●NSdns2.medfirst.com.cn2018-09-01 → 2026-04-13 · 2 obs
● 2026-04-13 18:44:00
●NSdns2.medfirst.com.tw2026-03-25 → 2026-04-13 · 3 obs
● 2026-03-25 22:38:00
● 2026-04-13 18:44:00
●NSdns3.medfirst.com.tw2026-03-25 → 2026-04-13 · 3 obs
● 2026-03-25 22:38:00
● 2026-04-13 18:44:00
○NSmedfirst.com.cn2018-09-01 → 2018-09-01 · 3 obs
○ 2026-03-25 22:38:00
○ 2026-04-13 18:44:00
○MXmail.medfirst.com.cn2018-09-01 → 2018-09-01 · 3 obs
○ 2026-03-25 22:38:00
○ 2026-04-13 18:44:00
●MXmedfirst-com-cn.mail.protection.outlook.com2026-03-25 → 2026-04-13 · 3 obs
● 2026-03-25 22:38:00
● 2026-04-13 18:44:00
○MXpostfix.medfirst.com.cn2018-09-01 → 2018-09-01 · 3 obs
○ 2026-03-25 22:38:00
○ 2026-04-13 18:44:00
●A8.153.76.2132026-03-25 → 2026-04-13 · 2 obs
● 2026-04-13 18:44:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| medfirst.com.cn | dns2.medfirst.com.tw, dns3.medfirst.com.tw | - |
✅ Authoritative Response
Server:175.99.149.130
NS records: dns2.medfirst.com.tw, dns3.medfirst.com.tw
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for medfirst.com.cn (unsigned zone)
⏱️ Timing
Total: 1843ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 8.153.76.213 |
| NS | 2 | dns1.medfirst.com.cn, dns2.medfirst.com.cn |
| MX | 1 | medfirst-com-cn.mail.protection.outlook. |
| TXT | 4 | MS=ms59538364, v=spf1 include:spf.protection.outlook.co... |
| SOA | 1 | dns1.medfirst.com.cn root.medfirst.com.c |
Analysis
Hierarchy
medfirst.com.cn is a parent of dns2.medfirst.com.cn and dns1.medfirst.com.cn.
IP Addresses
medfirst.com.cn points to a single IP number: 8.153.76.213.
Name Servers
medfirst.com.cn is delegated to four name servers: dns1.medfirst.com.cn, dns2.medfirst.com.cn, dns2.medfirst.com.tw and dns3.medfirst.com.tw.
medfirst.com.cn shares name servers with other domains at least partially, for example medfirst.com.tw.
These name servers are commonly used with the name servers dns4.medfirst.com.tw.
Host names with one IP number:
Host name dns1.medfirst.com.cn points to: 175.99.149.130
Host name dns2.medfirst.com.cn points to: 60.251.224.91
Host name dns2.medfirst.com.tw points to: 175.99.149.130
Host name dns3.medfirst.com.tw points to: 60.251.224.91
Host names pointing to 175.99.149.130: dns1.medfirst.com.cn and dns2.medfirst.com.tw
Host names pointing to 60.251.224.91: dns2.medfirst.com.cn and dns3.medfirst.com.tw
Mail Servers
medfirst.com.cn is handled by a single mail server, medfirst-com-cn.mail.protection.outlook.com.
The host name medfirst-com-cn.mail.protection.outlook.com resolves to six IP numbers: 2a01:111:f403:cc09::, 2a01:111:f403:cc1a::8, 2a01:111:f403:cc1f::4, 52.101.124.117, 52.101.137.0 and 52.101.157.80.