studybsd.com - dns.ninja

`studybsd.com`

DNSSEC	⚠️ Not signed
A	216.246.108.140^{🇺🇸 Colocrossing-AS216.246.108.0/24 COLOCROSSING-ORD}
		PTR	`www.serverbolt.com`
NS	`oldns1.scaleengine.net` ⭐
		A	216.246.108.139^{🇺🇸 Colocrossing-AS216.246.108.0/24 COLOCROSSING-ORD}
			PTR	`spamassassin1.serverbolt.com`
NS	`oldns2.scaleengine.net`
		A	178.128.227.90^{🇨🇦 DIGITALOCEAN178.128.224.0/20 DigitalOcean}
			PTR	`oldweb.scaleengine.net`
NS	`oldns3.scaleengine.net`
		A	178.128.227.90^{🇨🇦 DIGITALOCEAN178.128.224.0/20 DigitalOcean}
			PTR	`oldweb.scaleengine.net`
NS	`oldns4.scaleengine.net`
		A	216.246.108.140^{🇺🇸 Colocrossing-AS216.246.108.0/24 COLOCROSSING-ORD}
			PTR	`www.serverbolt.com`
MX	`spamassassin1.scaleengine.net` ⭐
		A	216.246.108.139^{🇺🇸 Colocrossing-AS216.246.108.0/24 COLOCROSSING-ORD}
			PTR	`spamassassin1.serverbolt.com`
MX	`spamassassin2.scaleengine.net`⁽²⁰⁾
		A	178.128.227.90^{🇨🇦 DIGITALOCEAN178.128.224.0/20 DigitalOcean}
			PTR	`oldweb.scaleengine.net`
MX	`spamassassin3.scaleengine.net`⁽³⁰⁾
		A	178.128.227.90^{🇨🇦 DIGITALOCEAN178.128.224.0/20 DigitalOcean}
			PTR	`oldweb.scaleengine.net`
MX	`spamassassin4.scaleengine.net`⁽⁴⁰⁾
		A	216.246.108.140^{🇺🇸 Colocrossing-AS216.246.108.0/24 COLOCROSSING-ORD}
			PTR	`www.serverbolt.com`
TXT	`v=spf1 a mx ip4:216.246.108.138 ip4:216.246.108.136/29 ip4:65.39.148.0/24 ip4...`
SOA	`oldns1.scaleengine.net`root@studybsd.com 2018-10-28 #0

`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=1782753911

WOT: SAFE (63/100)

Subdomains

join.studybsd.com

Same first word

studybsd.com

DNS History

17 records (9 active, 8 former)

○NSns1.serverbolt.com2015-06-14 → 2017-04-02 · 4 obs

● 2015-06-14 05:45:48
● 2017-04-02 09:15:02
○ 2020-02-27 21:17:06
○ 2026-06-29 17:35:26

○NSns2.serverbolt.com2015-06-14 → 2017-04-02 · 4 obs

● 2015-06-14 05:45:48
● 2017-04-02 09:15:02
○ 2020-02-27 21:17:06
○ 2026-06-29 17:35:26

○NSns3.serverbolt.com2015-06-14 → 2017-04-02 · 4 obs

● 2015-06-14 05:45:48
● 2017-04-02 09:15:02
○ 2020-02-27 21:17:06
○ 2026-06-29 17:35:26

○NSns4.serverbolt.com2015-06-14 → 2017-04-02 · 4 obs

● 2015-06-14 05:45:48
● 2017-04-02 09:15:02
○ 2020-02-27 21:17:06
○ 2026-06-29 17:35:26

●NSoldns1.scaleengine.net2020-02-27 → 2026-06-29 · 3 obs

○ 2017-04-02 09:15:02
● 2020-02-27 21:17:06
● 2026-06-29 17:35:26

●NSoldns2.scaleengine.net2020-02-27 → 2026-06-29 · 3 obs

○ 2017-04-02 09:15:02
● 2020-02-27 21:17:06
● 2026-06-29 17:35:26

●NSoldns3.scaleengine.net2020-02-27 → 2026-06-29 · 3 obs

○ 2017-04-02 09:15:02
● 2020-02-27 21:17:06
● 2026-06-29 17:35:26

●NSoldns4.scaleengine.net2020-02-27 → 2026-06-29 · 3 obs

○ 2017-04-02 09:15:02
● 2020-02-27 21:17:06
● 2026-06-29 17:35:26

●MXspamassassin1.scaleengine.net2020-02-27 → 2026-06-29 · 3 obs

○ 2017-04-02 09:15:02
● 2020-02-27 21:17:06
● 2026-06-29 17:35:26

○MXspamassassin1.serverbolt.com2015-06-14 → 2017-04-02 · 4 obs

● 2015-06-14 05:45:48
● 2017-04-02 09:15:02
○ 2020-02-27 21:17:06
○ 2026-06-29 17:35:26

●MXspamassassin2.scaleengine.net2020-02-27 → 2026-06-29 · 3 obs

○ 2017-04-02 09:15:02
● 2020-02-27 21:17:06
● 2026-06-29 17:35:26

○MXspamassassin2.serverbolt.com2015-06-14 → 2017-04-02 · 4 obs

● 2015-06-14 05:45:48
● 2017-04-02 09:15:02
○ 2020-02-27 21:17:06
○ 2026-06-29 17:35:26

●MXspamassassin3.scaleengine.net2020-02-27 → 2026-06-29 · 3 obs

○ 2017-04-02 09:15:02
● 2020-02-27 21:17:06
● 2026-06-29 17:35:26

○MXspamassassin3.serverbolt.com2015-06-14 → 2017-04-02 · 4 obs

● 2015-06-14 05:45:48
● 2017-04-02 09:15:02
○ 2020-02-27 21:17:06
○ 2026-06-29 17:35:26

●MXspamassassin4.scaleengine.net2020-02-27 → 2026-06-29 · 3 obs

○ 2017-04-02 09:15:02
● 2020-02-27 21:17:06
● 2026-06-29 17:35:26

○MXspamassassin4.serverbolt.com2015-06-14 → 2017-04-02 · 4 obs

● 2015-06-14 05:45:48
● 2017-04-02 09:15:02
○ 2020-02-27 21:17:06
○ 2026-06-29 17:35:26

●A216.246.108.1402015-06-14 → 2026-06-29 · 2 obs

● 2015-06-14 05:45:48
● 2026-06-29 17:35:26

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	c.gtld-servers.net, a.gtld-servers.net, k.gtld-servers.net, i.gtld-servers.net...	-
studybsd.com	oldns4.scaleengine.net, oldns1.scaleengine.net, oldns3.scaleengine.net, oldns2.scaleengine.net	-

✅ Authoritative Response

Server:178.128.227.90

NS records: oldns4.scaleengine.net, oldns1.scaleengine.net, oldns3.scaleengine.net, oldns2.scaleengine.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for studybsd.com (unsigned zone)

⏱️ Timing

Total: 478ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`216.246.108.140`
NS	4	`oldns3.scaleengine.net, oldns1.scaleengine.net...`
MX	4	`spamassassin4.scaleengine.net (pri: 40), spamassassin3.scaleengine.net (pri: 30)...`
TXT	1	`v=spf1 a mx ip4:216.246.108.138 ip4:216.`
SOA	1	`oldns1.scaleengine.net root.studybsd.com`

Analysis

Hierarchy

The domain join.studybsd.com falls under the parent studybsd.com.

IP Addresses

studybsd.com has exactly one IP address — 216.246.108.140.

roesbak.org, oldns4.scaleengine.net, shellfusion.ca plus two other host names have IP numbers in common with studybsd.com.

Name Servers

Four name servers handle the delegation for studybsd.com: oldns1.scaleengine.net, oldns2.scaleengine.net, oldns3.scaleengine.net and oldns4.scaleengine.net.

At least some of studybsd.com's name servers are shared with other domains, for example bsdnow.tv, zfsbook.com, nextsportstar.com and two more.

These name servers tend to be deployed in combination with the name servers ns1.thunderit.com and ns2.thunderit.com.

The hosts oldns1.scaleengine.net, oldns2.scaleengine.net, oldns3.scaleengine.net and oldns4.scaleengine.net each have exactly one IP address. oldns1.scaleengine.net has 216.246.108.139; oldns2.scaleengine.net has 178.128.227.90; oldns3.scaleengine.net shares that same IP 178.128.227.90; oldns4.scaleengine.net has 216.246.108.140.

These two host names — oldns2.scaleengine.net and oldns3.scaleengine.net — each point to 178.128.227.90 IP addresses.

Mail Servers

The four mail servers for studybsd.com are spamassassin1.scaleengine.net, spamassassin2.scaleengine.net, spamassassin3.scaleengine.net and spamassassin4.scaleengine.net.

At least some of the mail servers used by studybsd.com are shared with other domains: bsdnow.tv, zfsbook.com, nextsportstar.com and two others among them.

These mail servers tend to be used in conjunction with the mail servers mx1.scaleengine.net.

The hosts spamassassin1.scaleengine.net, spamassassin2.scaleengine.net, spamassassin3.scaleengine.net and spamassassin4.scaleengine.net each have exactly one IP address. spamassassin1.scaleengine.net has 216.246.108.139; spamassassin2.scaleengine.net has 178.128.227.90; spamassassin3.scaleengine.net shares that same IP 178.128.227.90; spamassassin4.scaleengine.net has 216.246.108.140.

These two host names — spamassassin2.scaleengine.net and spamassassin3.scaleengine.net — each point to 178.128.227.90 IP addresses.