biosrf.com - dns.ninja

`biosrf.com`

DNSSEC	⚠️ Not signed
A	112.175.85.176^{🇰🇷 KT-NET112.168.0.0/13}
NS	`biosrf.com` ⭐
		A	112.175.85.176^{🇰🇷 KT-NET112.168.0.0/13}
NS	`ns.biosrf.com` ⚠️ Not in parent delegation
		A	218.145.65.143^{🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom}
NS	`ns.gethompy.com` ⚠️ Not in zone NS records
		A	218.145.65.143^{🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom}
NS	`ns1.biosrf.com` ⚠️ Not in parent delegation
		A	116.126.143.226^{🇰🇷 SKB-NET116.126.0.0/16 SK Broadband}
NS	`ns1.gethompy.com` ⚠️ Not in zone NS records
		A	116.126.143.226^{🇰🇷 SKB-NET116.126.0.0/16 SK Broadband}
NS	`ns2.biosrf.com` ⚠️ Not in parent delegation
		A	218.145.65.144^{🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom}
NS	`ns2.gethompy.com` ⚠️ Not in zone NS records
		A	218.145.65.144^{🇰🇷 KT-NET218.144.0.0/13 KORnet Powered BY Korea Telecom}
NS	`ns3.biosrf.com` ⚠️ Not in parent delegation
		A	116.126.143.225^{🇰🇷 SKB-NET116.126.0.0/16 SK Broadband}
NS	`ns3.gethompy.com` ⚠️ Not in zone NS records
		A	116.126.143.225^{🇰🇷 SKB-NET116.126.0.0/16 SK Broadband}
MX	`aspmx.whoisworks.com` ⭐
		A	193.123.252.198^{🇰🇷 ORACLE-OCI-31898193.123.224.0/19 KINX-Oracle}
			PTR	`filter00.whoisworks.com`
TXT	`v=spf1 include:spf1.whoisworks.com ~all`
SOA	`biosrf.com`postmaster@biosrf.com serial=20210314

`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.net`nstld@verisign-grs.com serial=1781308848

NS for

biosrf.com

Subdomains

mail.biosrf.com

ns2.biosrf.com

ns1.biosrf.com

ns3.biosrf.com

ns.biosrf.com

Same first word

biosrf.com

biosrf.net

Similar names

forbis.id

forsib.ru

fibros.org

brosif.com

frisbo.com

fibros.com

frosbi.ru

isforb.de

frobis.de

forbis.net

briofs.com

fsrobi.nl

forbis.lt

rosbif.org

frisbo.ro

fibros.eu

frisbo.pl

forbis.eu

forbis.se

forbis.ru

frisbo.eu

forbis.jp

forbis.pt

rosbif.com

forbis.sk

forbis.de

briosf.com

forbis.pl

forbis.pro

forbis.com

fboris.com

frisbo.de

bisfor.com

forbis.hu

forbis.co.uk

forbis.ch

fsrbio.de

forbis.org

rosbif.net

fibros.it

brifos.ru

DNS History

16 records (11 active, 5 former)

●NSbiosrf.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-10-18 03:56:06
● 2026-02-17 22:28:24
● 2026-06-13 00:16:32

●NSns.biosrf.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-10-18 03:56:06
● 2026-02-17 22:28:24
● 2026-06-13 00:16:32

●NSns.gethompy.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-10-18 03:56:06
● 2026-02-17 22:28:24
● 2026-06-13 00:16:32

●NSns1.biosrf.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-10-18 03:56:06
● 2026-02-17 22:28:24
● 2026-06-13 00:16:32

●NSns1.gethompy.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-10-18 03:56:06
● 2026-02-17 22:28:24
● 2026-06-13 00:16:32

○NSns1.nurihosting.com2016-12-16 → 2017-10-18 · 4 obs

● 2016-12-16 21:12:16
● 2017-10-18 03:56:06
○ 2026-02-17 22:28:24
○ 2026-06-13 00:16:32

●NSns2.biosrf.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-10-18 03:56:06
● 2026-02-17 22:28:24
● 2026-06-13 00:16:32

●NSns2.gethompy.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-10-18 03:56:06
● 2026-02-17 22:28:24
● 2026-06-13 00:16:32

○NSns2.nurihosting.com2016-12-16 → 2017-10-18 · 4 obs

● 2016-12-16 21:12:16
● 2017-10-18 03:56:06
○ 2026-02-17 22:28:24
○ 2026-06-13 00:16:32

●NSns3.biosrf.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-10-18 03:56:06
● 2026-02-17 22:28:24
● 2026-06-13 00:16:32

●NSns3.gethompy.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-10-18 03:56:06
● 2026-02-17 22:28:24
● 2026-06-13 00:16:32

●MXaspmx.whoisworks.com2026-02-17 → 2026-06-13 · 3 obs

○ 2017-10-18 03:56:06
● 2026-02-17 22:28:24
● 2026-06-13 00:16:32

○MXmail.biosrf.com2016-12-16 → 2017-10-18 · 4 obs

● 2016-12-16 21:12:16
● 2017-10-18 03:56:06
○ 2026-02-17 22:28:24
○ 2026-06-13 00:16:32

●A112.175.85.1762026-02-17 → 2026-06-13 · 3 obs

○ 2017-10-18 03:56:06
● 2026-02-17 22:28:24
● 2026-06-13 00:16:32

○A121.125.73.192016-12-16 → 2016-12-16 · 3 obs

● 2016-12-16 21:12:16
○ 2017-10-18 03:56:06
○ 2026-06-13 00:16:32

○A121.125.73.622017-10-18 → 2017-10-18 · 4 obs

○ 2016-12-16 21:12:16
● 2017-10-18 03:56:06
○ 2026-02-17 22:28:24
○ 2026-06-13 00:16:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, i.gtld-servers.net, f.gtld-servers.net, b.gtld-servers.net...	-
biosrf.com	ns.gethompy.com, ns2.gethompy.com, ns1.gethompy.com, ns3.gethompy.com	4 records

✅ Authoritative Response

Server:218.145.65.144

NS records: ns.gethompy.com, ns2.gethompy.com, ns1.gethompy.com, ns3.gethompy.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for biosrf.com (unsigned zone)

⏱️ Timing

Total: 602ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`112.175.85.176`
NS	4	`ns.biosrf.com, ns1.biosrf.com...`
MX	1	`aspmx.whoisworks.com (pri: 10)`
TXT	1	`v=spf1 include:spf1.whoisworks.com ~all`
SOA	1	`biosrf.com postmaster.biosrf.com`

📌 Glue Records Collected

Total: 4

Out-of-bailiwick: 4 (ns.gethompy.com, ns2.gethompy.com, ns1.gethompy.com...)

Analysis

Hierarchy

The domain biosrf.com serves as parent to mail.biosrf.com, ns2.biosrf.com, ns1.biosrf.com, ns3.biosrf.com and ns.biosrf.com.

Name Server Role

biosrf.com acts as a name server for biosrf.com, meaning it is self-referentially delegated.

ns1.biosrf.com, ns2.biosrf.com and ns3.biosrf.com are commonly used as name server together with biosrf.com.

IP Addresses

biosrf.com resolves to one IP address: 112.175.85.176.

tulip-pension.com, all-care.co.kr, staysink.com and two other host names share IP numbers with biosrf.com.

Name Servers

The delegation for biosrf.com points to 9 name servers, including biosrf.com, ns1.biosrf.com, ns2.biosrf.com and 6 other.

At least some of biosrf.com's name servers are shared with other domains, for example psdoc.co.kr, dsds.kr, weeo.co.kr and two more.

These name servers are often deployed together with the name servers ns1.gethompy.com, ns.gethompy.com, ns2.gethompy.com and ns3.gethompy.com.

Host names with one IP number:

biosrf.com resolves to the IP address 112.175.85.176.

ns1.biosrf.com resolves to the IP address 116.126.143.226.

ns2.biosrf.com resolves to the IP address 218.145.65.144.

ns3.biosrf.com resolves to the IP address 116.126.143.225.

ns.biosrf.com resolves to the IP address 218.145.65.143.

ns1.gethompy.com resolves to the IP address 116.126.143.226.

ns2.gethompy.com resolves to the IP address 218.145.65.144.

ns3.gethompy.com resolves to the IP address 116.126.143.225.

ns.gethompy.com resolves to the IP address 218.145.65.143.

ns1.biosrf.com and ns1.gethompy.com each have 116.126.143.226 IP addresses.

ns2.biosrf.com and ns2.gethompy.com each have 218.145.65.144 IP addresses.

ns3.biosrf.com and ns3.gethompy.com each have 116.126.143.225 IP addresses.

ns.biosrf.com and ns.gethompy.com each have 218.145.65.143 IP addresses.

Mail Servers

Mail for biosrf.com is handled by a single mail server, aspmx.whoisworks.com.

biosrf.com uses an identical mail server configuration to several other domains — among them triadkorea.com, woongnam.co.kr, itagu.co.kr and two more.

biosrf.com has at least partial mail server overlap with other domains such as kjca.co.kr, gstkorea.com, krpark.com and two more.

It is common to find these mail servers used together with the mail servers alf1.aspmx.whoisworks.com and alf2.aspmx.whoisworks.com.

aspmx.whoisworks.com resolves to 193.123.252.198 and no other IP number.