`holdown.com`

DNSSEC	⚠️ Not signed
A	208.52.91.133^{🇺🇸 VOBIZ208.52.0.0/17 Wave Broadband}
NS	`ns1.he.net` ⭐
		A	2001:470:100::2^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`ns1.he.net`
		A	216.218.130.2^{🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`ns1.he.net`
NS	`ns2.he.net`
		A	2001:470:200::2^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`ns2.he.net`
		A	216.218.131.2^{🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`ns2.he.net`
NS	`ns3.he.net`
		A	2001:470:300::2^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`ns3.he.net`
		A	216.218.132.2^{🇺🇸 HURRICANE216.218.128.0/17 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`ns3.he.net`
NS	`ns4.he.net`
		A	2001:470:400::2^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`ns4.he.net`
		A	216.66.1.2^{🇺🇸 HURRICANE216.66.0.0/19 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`ns4.he.net`
NS	`ns5.he.net`
		A	2001:470:500::2^{🇺🇸 HURRICANE2001:470::/32 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`ns5.he.net`
		A	216.66.80.18^{🇺🇸 HURRICANE216.66.80.0/20 Hurricane Electric 55 South Market St San Jose, CA}
			PTR	`ns5.he.net`
MX	`holdown-com.mail.protection.outlook.com` ⭐
		A	2a01:111:f403:c931::^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-sn1pr02cu00100.inbound.protection.outlook.com`
		A	2a01:111:f403:f804::3^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-co1pr03cu00403.inbound.protection.outlook.com`
		A	2a01:111:f403:f902::1^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-bl2pr02cu00101.inbound.protection.outlook.com`
		A	2a01:111:f403:f905::4^{🇺🇸 Microsoft2a01:111:f000::/36}
			PTR	`mail-dm2pr04cu00404.inbound.protection.outlook.com`
		A	52.101.9.14^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-bl0pr03cu00206.inbound.protection.outlook.com`
		A	52.101.41.21^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-sj2pr05cu00305.inbound.protection.outlook.com`
		A	52.101.194.4^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch4pr04cu00104.inbound.protection.outlook.com`
		A	52.101.194.12^{🇺🇸 Microsoft52.96.0.0/12 MICROSOFT}
			PTR	`mail-ch0pr04cu00504.inbound.protection.outlook.com`
TXT	`v=spf1 ip4:208.52.91.128/28 ip4:50.125.118.72/29 include:spf.protection.outlo...`
TXT	`have-i-been-pwned-verification=2b1e83169bfb2a23861c3cef929e07db`
TXT	`AIR69TFQNBVQA29021C34G2DS9`
SOA	`ns1.he.net`hostmaster@he.net 2026-04-08 #3

`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=1776139432

WOT: SAFE (68/100)

Subdomains

www.holdown.com

Same first word

holdown.com

holdown.org

DNS History

11 records (7 active, 4 former)

●NSns1.he.net2026-03-08 → 2026-04-14 · 3 obs

○ 2018-05-25 17:14:00
● 2026-03-08 05:42:40
● 2026-04-14 04:05:30

●NSns2.he.net2026-03-08 → 2026-04-14 · 3 obs

○ 2018-05-25 17:14:00
● 2026-03-08 05:42:40
● 2026-04-14 04:05:30

●NSns3.he.net2026-03-08 → 2026-04-14 · 3 obs

○ 2018-05-25 17:14:00
● 2026-03-08 05:42:40
● 2026-04-14 04:05:30

○NSns39.worldnic.com2015-08-18 → 2018-05-25 · 4 obs

● 2015-08-18 22:57:54
● 2018-05-25 17:14:00
○ 2026-03-08 05:42:40
○ 2026-04-14 04:05:30

●NSns4.he.net2026-03-08 → 2026-04-14 · 3 obs

○ 2018-05-25 17:14:00
● 2026-03-08 05:42:40
● 2026-04-14 04:05:30

○NSns40.worldnic.com2015-08-18 → 2018-05-25 · 4 obs

● 2015-08-18 22:57:54
● 2018-05-25 17:14:00
○ 2026-03-08 05:42:40
○ 2026-04-14 04:05:30

●NSns5.he.net2026-03-08 → 2026-04-14 · 3 obs

○ 2018-05-25 17:14:00
● 2026-03-08 05:42:40
● 2026-04-14 04:05:30

●MXholdown-com.mail.protection.outlook.com2015-08-18 → 2026-04-14 · 2 obs

● 2015-08-18 22:57:54
● 2026-04-14 04:05:30

●A208.52.91.1332026-03-08 → 2026-04-14 · 3 obs

○ 2018-05-25 17:14:00
● 2026-03-08 05:42:40
● 2026-04-14 04:05:30

○A50.207.181.832018-05-25 → 2018-05-25 · 4 obs

○ 2016-09-13 17:17:26
● 2018-05-25 17:14:00
○ 2026-03-08 05:42:40
○ 2026-04-14 04:05:30

○A75.151.123.982015-08-18 → 2016-09-13 · 4 obs

● 2015-08-18 22:57:54
● 2016-09-13 17:17:26
○ 2018-05-25 17:14:00
○ 2026-04-14 04:05:30

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	l.gtld-servers.net, j.gtld-servers.net, a.gtld-servers.net, c.gtld-servers.net...	-
holdown.com	ns1.he.net, ns2.he.net, ns3.he.net, ns4.he.net...	-

✅ Authoritative Response

Server:216.218.130.2

NS records: ns1.he.net, ns2.he.net, ns3.he.net, ns4.he.net, ns5.he.net

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for holdown.com (unsigned zone)

⏱️ Timing

Total: 276ms | Queries: -

📄 Records

Type	Count	Sample Data
A	1	`208.52.91.133`
NS	5	`ns2.he.net, ns3.he.net...`
MX	1	`holdown-com.mail.protection.outlook.com`
TXT	3	`AIR69TFQNBVQA29021C34G2DS9, v=spf1 ip4:208.52.91.128/28 ip4:50.125.1...`
SOA	1	`ns1.he.net hostmaster.he.net`

Analysis

Hierarchy

holdown.com is a parent of www.holdown.com.

IP Addresses

holdown.com points to a single IP number: 208.52.91.133.

Other host names, for instance slackjack.com, ebcorp.us, rod-ratchet.com, earthboundcorp.com and earthbound.us share IP numbers with holdown.com.

Name Servers

holdown.com is delegated to five name servers: ns1.he.net, ns2.he.net, ns3.he.net, ns4.he.net and ns5.he.net.

holdown.com at least partially shares name servers with other domains, for instance satirix.net, stepnow.gr, mvct.ca, cavanasystems.com and watersanteh.ru.