`update-symantec.com`

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	`ns1.update-symantec.com` ⭐
		A	18.205.186.231^{🇺🇸 Amazon18.204.0.0/14 EC2 IAD prefix}
			PTR	`ec2-18-205-186-231.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`
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`
MX	`mx1.update-symantec.com` ⭐
		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.update-symantec.com` ⭐
		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	`ns1.update-symantec.com`hostmaster@update-symantec.com serial=1778685502

`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=1778697681

⚠️ On DNS blocklist: tif

Same first word

update-symantec.com

DNS History

20 records (8 active, 12 former)

○NSalina.ns.cloudflare.com2020-04-11 → 2020-04-11 · 4 obs

○ 2016-07-01 21:17:38
● 2020-04-11 23:35:54
○ 2026-03-10 11:57:58
○ 2026-05-13 19:01:32

○NSdns1.name-services.com2015-07-15 → 2016-07-01 · 4 obs

● 2015-07-15 12:42:54
● 2016-07-01 21:17:38
○ 2020-04-11 23:35:54
○ 2026-05-13 19:01:32

○NSdns2.name-services.com2015-07-15 → 2016-07-01 · 4 obs

● 2015-07-15 12:42:54
● 2016-07-01 21:17:38
○ 2020-04-11 23:35:54
○ 2026-05-13 19:01:32

○NSdns3.name-services.com2015-07-15 → 2016-07-01 · 4 obs

● 2015-07-15 12:42:54
● 2016-07-01 21:17:38
○ 2020-04-11 23:35:54
○ 2026-05-13 19:01:32

○NSdns4.name-services.com2015-07-15 → 2016-07-01 · 4 obs

● 2015-07-15 12:42:54
● 2016-07-01 21:17:38
○ 2020-04-11 23:35:54
○ 2026-05-13 19:01:32

○NSdns5.name-services.com2015-07-15 → 2016-07-01 · 4 obs

● 2015-07-15 12:42:54
● 2016-07-01 21:17:38
○ 2020-04-11 23:35:54
○ 2026-05-13 19:01:32

●NSns1.csof.net2026-03-10 → 2026-05-13 · 3 obs

○ 2020-04-11 23:35:54
● 2026-03-10 11:57:58
● 2026-05-13 19:01:32

●NSns1.update-symantec.com2026-05-13 → 2026-05-13 · 3 obs

○ 2026-03-10 11:57:58
● 2026-05-13 19:01:30
● 2026-05-13 19:01:32

●NSns2.csof.net2026-03-10 → 2026-05-13 · 3 obs

○ 2020-04-11 23:35:54
● 2026-03-10 11:57:58
● 2026-05-13 19:01:32

●NSns3.csof.net2026-03-10 → 2026-05-13 · 3 obs

○ 2020-04-11 23:35:54
● 2026-03-10 11:57:58
● 2026-05-13 19:01:32

●NSns4.csof.net2026-03-10 → 2026-05-13 · 3 obs

○ 2020-04-11 23:35:54
● 2026-03-10 11:57:58
● 2026-05-13 19:01:32

○NSseth.ns.cloudflare.com2020-04-11 → 2020-04-11 · 4 obs

○ 2016-07-01 21:17:38
● 2020-04-11 23:35:54
○ 2026-03-10 11:57:58
○ 2026-05-13 19:01:32

●MXmx1.update-symantec.com2026-03-10 → 2026-05-13 · 2 obs

● 2026-03-10 11:57:58
● 2026-05-13 19:01:32

●MXmx2.update-symantec.com2026-03-10 → 2026-05-13 · 2 obs

● 2026-03-10 11:57:58
● 2026-05-13 19:01:32

○A104.24.120.912020-04-11 → 2020-04-11 · 4 obs

○ 2016-07-01 21:17:38
● 2020-04-11 23:35:54
○ 2026-03-10 11:57:58
○ 2026-05-13 19:01:32

○A104.24.121.912020-04-11 → 2020-04-11 · 4 obs

○ 2016-07-01 21:17:38
● 2020-04-11 23:35:54
○ 2026-03-10 11:57:58
○ 2026-05-13 19:01:32

○A2606:4700:3031::6818:785b2020-04-11 → 2020-04-11 · 4 obs

○ 2016-07-01 21:17:38
● 2020-04-11 23:35:54
○ 2026-03-10 11:57:58
○ 2026-05-13 19:01:32

○A2606:4700:3034::6818:795b2020-04-11 → 2020-04-11 · 4 obs

○ 2016-07-01 21:17:38
● 2020-04-11 23:35:54
○ 2026-03-10 11:57:58
○ 2026-05-13 19:01:32

●A50.16.27.2362026-03-10 → 2026-05-13 · 3 obs

○ 2020-04-11 23:35:54
● 2026-03-10 11:57:58
● 2026-05-13 19:01:32

○A8.5.1.472016-07-01 → 2016-07-01 · 3 obs

● 2016-07-01 21:17:38
○ 2020-04-11 23:35:54
○ 2026-05-13 19:01:32

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
com	e.gtld-servers.net, h.gtld-servers.net, i.gtld-servers.net, f.gtld-servers.net...	-
update-symantec.com	ns1.csof.net, ns2.csof.net, ns4.csof.net, ns3.csof.net	-

✅ Authoritative Response

Server:18.205.186.231

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

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for update-symantec.com (unsigned zone)

⏱️ Timing

Total: 984ms | Queries: -

📄 Records

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

Analysis

IP Addresses

update-symantec.com points to a single IP: 50.16.27.236.

Other host names, for instance www.b982dfe9ea474b902fcfe2dcf2611d99.com, www.85a6478b134e3e5a4b10c18b413376b1.com, www.vcddkls.biz, yyurh.cannca.shop and washingtonamethyst.net share IP numbers with update-symantec.com.

Name Servers

update-symantec.com is delegated to five name servers: ns1.update-symantec.com, ns1.csof.net, ns2.csof.net, ns3.csof.net and ns4.csof.net.

update-symantec.com partially shares name servers with other domains; examples include fqnvulpnfolpblclrmro.com, dutyarmy.net, multiapps.club, e184f71112d58db6b1dd43b69c0a46fc.net and ns1.ab8cee60c2d.com.

These name servers commonly accompany ns5.csof.net, ns6.csof.net, ns7.csof.net and ns8.csof.net.

Host names with one IP:

Host name ns1.update-symantec.com points to 18.205.186.231

Host name ns1.csof.net points to 18.205.186.231

Host name ns2.csof.net points to 23.21.178.27

Host name ns3.csof.net points to 3.214.185.54

Host name ns4.csof.net points to 52.20.19.77

Host names that point to 18.205.186.231: ns1.update-symantec.com and ns1.csof.net

Mail Servers

update-symantec.com is handled by two mail servers: mx1.update-symantec.com and mx2.update-symantec.com.

Host names with one IP number: The host name mx1.update-symantec.com points to 46.4.12.146 and the host name mx2.update-symantec.com points to 46.4.10.173.

update-symantec.com - robtex.com