koster.ph - robtex.com
koster.ph
| DNSSEC | ⚠️ Not signed | ||||||
| A | 172.93.103.100🇺🇸 RELIABLESITENET-1172.93.103.0/24 101 Possumtown Rd Piscataway, NJ 08854 United States | ||||||
| NS | ns1.commonmx.com ⭐ | ||||||
| A | 104.243.45.206🇺🇸 RELIABLESITENET-1104.243.45.0/24 101 Possumtown Rd Piscataway, NJ 08854 United States | ||||||
| NS | ns2.commonmx.com | ||||||
| A | 212.92.105.193🇳🇱 NFORCE212.92.104.0/21 NFOrce Entertainment BV - route 212.92.104.0/21 | ||||||
| SOA | ns1.commonmx.comadmin@koster.ph 2026-04-21 #0 | ||||||
ph
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ph-tld-ns.dot.ph ⭐ | ||||||
| NS | 1.ns.ph | ||||||
| NS | ns2.cuhk.edu.hk | ||||||
| NS | ns4.apnic.net | ||||||
| NS | ph.communitydns.net | ||||||
| SOA | ph-tld-ns.dot.phsysadmin@domains.ph 2026-05-11 #14 | ||||||
Subdomains
mail.koster.ph |
Same first word
Similar names
DNS History
13 records (3 active, 10 former)
○NShan.han-solo.net2015-07-11 → 2017-09-28 · 4 obs
● 2017-09-28 09:53:04
○ 2026-05-02 04:51:06
○ 2026-05-11 07:59:22
○NSleia.han-solo.net2015-07-11 → 2017-09-28 · 4 obs
● 2017-09-28 09:53:04
○ 2026-05-02 04:51:06
○ 2026-05-11 07:59:22
●NSns1.commonmx.com2026-05-02 → 2026-05-11 · 3 obs
● 2026-05-02 04:51:06
● 2026-05-11 07:59:22
●NSns2.commonmx.com2026-05-02 → 2026-05-11 · 3 obs
● 2026-05-02 04:51:06
● 2026-05-11 07:59:22
○MXmail.koster.ph2015-07-11 → 2017-09-28 · 4 obs
● 2017-09-28 09:53:04
○ 2026-05-02 04:51:06
○ 2026-05-11 07:59:22
●A172.93.103.1002026-05-09 → 2026-05-11 · 5 obs
● 2026-05-09 11:40:56
○ 2026-05-10 17:33:54
○ 2026-05-11 03:27:24
● 2026-05-11 07:59:22
○A172.93.103.1022026-05-02 → 2026-05-02 · 4 obs
● 2026-05-02 04:51:06
○ 2026-05-03 05:37:40
○ 2026-05-11 07:59:22
○A172.93.103.992026-05-03 → 2026-05-03 · 4 obs
● 2026-05-03 05:37:40
○ 2026-05-08 14:55:14
○ 2026-05-11 07:59:22
○A212.92.105.1992026-05-10 → 2026-05-11 · 4 obs
● 2026-05-10 17:33:54
● 2026-05-11 03:27:24
○ 2026-05-11 07:59:22
○A212.92.105.2012026-05-08 → 2026-05-09 · 6 obs
● 2026-05-08 14:55:14
○ 2026-05-08 20:24:06
● 2026-05-09 06:56:54
○ 2026-05-09 11:40:56
○ 2026-05-11 07:59:22
○A212.92.105.2032026-05-08 → 2026-05-08 · 4 obs
● 2026-05-08 20:24:06
○ 2026-05-09 06:56:54
○ 2026-05-11 07:59:22
○A217.172.188.572015-07-11 → 2015-07-11 · 3 obs
○ 2015-11-24 21:16:36
○ 2026-05-11 07:59:22
○A85.25.92.1022015-11-24 → 2017-09-28 · 5 obs
● 2015-11-24 21:16:36
● 2017-09-28 09:53:04
○ 2026-05-02 04:51:06
○ 2026-05-11 07:59:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| ph | ns2.cuhk.edu.hk, 1.ns.ph, ph.communitydns.net, ns4.apnic.net | 8 records |
| koster.ph | ns1.commonmx.com, ns2.commonmx.com | - |
✅ Authoritative Response
Server:104.243.45.206
NS records: ns1.commonmx.com, ns2.commonmx.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for koster.ph (unsigned zone)
⏱️ Timing
Total: 872ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 212.92.105.198 |
| NS | 2 | ns1.commonmx.com, ns2.commonmx.com |
| SOA | 1 | ns1.commonmx.com admin.koster.ph |
📌 Glue Records Collected
Total: 8
In-bailiwick: 2 (1.ns.ph, 1.ns.ph)
Out-of-bailiwick: 6 (ns4.apnic.net, ns2.cuhk.edu.hk, ph.communitydns.net...)
Analysis
Hierarchy
mail.koster.ph is a child of koster.ph.
IP Addresses
koster.ph resolves to one IP number: 172.93.103.100.
Other host names, for instance bojkow.pl.ph, kindlereaderforpc.blogspot.com.ph, hydra2web.ph, rijpevrouwen.sms(0x736578)datevrouwen.nl.ph and gaziantepwebsite.blogspot.com.ph share IP numbers with koster.ph.
Name Servers
koster.ph's delegation uses two name servers: ns1.commonmx.com and ns2.commonmx.com.
koster.ph uses the same name server setup as other domains, such as withlan.com.ph, telecom.ph, kia.ph, phmcb.com.ph and cohenlifestyle.com.ph.
Host names with a single IP address: ns1.commonmx.com points to 104.243.45.206; ns2.commonmx.com points to 212.92.105.193.