`krebsonsecurity.top`

DNSSEC	⚠️ Not signed
A	50.16.27.236^{🇺🇸 Amazon50.16.0.0/16 EC2 IAD prefix}
		PTR	`ec2-50-16-27-236.compute-1.amazonaws.com`
NS	`ns4.csof.net` ⭐
		A	52.20.19.77^{🇺🇸 Amazon52.20.0.0/14 EC2 IAD prefix}
			PTR	`ec2-52-20-19-77.compute-1.amazonaws.com`
NS	`ns1.csof.net`
		A	18.205.186.231^{🇺🇸 Amazon18.204.0.0/14 EC2 IAD prefix}
			PTR	`ec2-18-205-186-231.compute-1.amazonaws.com`
NS	`ns2.csof.net`
		A	23.21.178.27^{🇺🇸 Amazon23.20.0.0/15 EC2 IAD prefix}
			PTR	`ec2-23-21-178-27.compute-1.amazonaws.com`
NS	`ns3.csof.net`
		A	3.214.185.54^{🇺🇸 Amazon3.208.0.0/12 EC2 IAD prefix}
			PTR	`ec2-3-214-185-54.compute-1.amazonaws.com`
MX	`mx1.krebsonsecurity.top` ⭐
		A	46.4.12.146^{🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3}
			PTR	`static.146.12.4.46.clients.your-server.de`
MX	`mx2.krebsonsecurity.top` ⭐
		A	46.4.10.173^{🇩🇪 Hetzner46.4.0.0/16 HETZNER-RZ-FKS-BLK3}
			PTR	`static.173.10.4.46.clients.your-server.de`
TXT	`v=spf1 include:_incspfcheck.mailspike.net ?all`
SOA	`ns4.csof.net`hostmaster@krebsonsecurity.top serial=1776159319

`top`

	DNSSEC	🔒 Signed (DS record present)
	NS	`a.zdnscloud.com` ⭐
	NS	`a.zdnscloud.cn`
	NS	`b.zdnscloud.cn`
	NS	`c.zdnscloud.com`
	NS	`d.zdnscloud.com`
	NS	`e.zdnscloud.cn` ⚠️ Not in parent delegation
	NS	`f.zdnscloud.cn`
	NS	`g.zdnscloud.com` ⚠️ Not in zone NS records
	NS	`i.zdnscloud.cn`
	NS	`j.zdnscloud.com`
	TXT	`2026-04-14_17:05:01`
	SOA	`a.zdnscloud.com`td_dns_gtld@knet.cn serial=1395536760

⚠️ On DNS blocklist: tif
WOT: SUSPICIOUS (22/100)

Subdomains

552-39-1659.krebsonsecurity.top

brian.krebsonsecurity.top

552-39-1658.krebsonsecurity.top

www.krebsonsecurity.top

Same first word

krebsonsecurity.ru

krebsonsecurity.co

krebsonsecurity.com

krebsonsecurity.top

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
top	g.zdnscloud.com, f.zdnscloud.cn, a.zdnscloud.cn, b.zdnscloud.cn...	-
krebsonsecurity.top	ns1.csof.net, ns2.csof.net, ns3.csof.net, ns4.csof.net	-

✅ Authoritative Response

Server:23.21.178.27

NS records: ns1.csof.net, ns2.csof.net, ns3.csof.net, ns4.csof.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for krebsonsecurity.top (unsigned zone)

⏱️ Timing

Total: 863ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`50.16.27.236`
NS	4	`ns1.csof.net, ns2.csof.net...`
MX	2	`mx2.krebsonsecurity.top (pri: 10), mx1.krebsonsecurity.top (pri: 10)`
TXT	1	`v=spf1 include:_incspfcheck.mailspike.ne`
SOA	1	`ns4.csof.net hostmaster.krebsonsecurity.`

Analysis

Hierarchy

krebsonsecurity.top is a parent of 552-39-1659.krebsonsecurity.top, brian.krebsonsecurity.top, 552-39-1658.krebsonsecurity.top and www.krebsonsecurity.top.

IP Addresses

krebsonsecurity.top points to a single IP address: 50.16.27.236.

Other host names such as x11.elkogarj.net, wgrmkc03ddba48a5.net, zvdlg18ce2114540.com, 1bba1e15b5723396dbf60820bc643896.com and bfbf990a22a869ea39754f8bfc9aec96.com share IPs with krebsonsecurity.top.

Name Servers

krebsonsecurity.top is delegated to four name servers: ns1.csof.net, ns2.csof.net, ns3.csof.net and ns4.csof.net.

krebsonsecurity.top at least partially shares name servers with other domains, for example rkzqdnhl.live, 7120a55c19cbd6ca8ce4ff746d599c33.com, nlnbkdu.in, ykroa6a888d1406a.com and quadrangles.phx.ygnition.net.

these name servers commonly pair with ns5.csof.net, ns6.csof.net, ns7.csof.net and ns8.csof.net.

Host names with one IP number:

ns1.csof.net points to: 18.205.186.231

ns2.csof.net points to: 23.21.178.27

ns3.csof.net points to: 3.214.185.54

ns4.csof.net points to: 52.20.19.77

Mail Servers

Two mail servers handle krebsonsecurity.top: mx1.krebsonsecurity.top and mx2.krebsonsecurity.top.

krebsonsecurity.top shares the same mail server setup as other domains, for instance 552-39-1658.krebsonsecurity.top, www.krebsonsecurity.top, 552-39-1659.krebsonsecurity.top and brian.krebsonsecurity.top.

Host names with one IP number:

mx1.krebsonsecurity.top points to 46.4.12.146; mx2.krebsonsecurity.top points to 46.4.10.173.

krebsonsecurity.top - robtex.com