🛡️Domain Reputation CheckBlocklist, phishing & malware status→

`sys1.webfilter.dk`

CNAME	`webfilter.dk`
DNSSEC	🔒 Signed (DS record present)
A	5.75.170.83^{🇩🇪 Hetzner5.75.128.0/17 HETZNER-DC}
		PTR	`static.83.170.75.5.clients.your-server.de`
NS	`ns1.simply.com` ⭐
		A	2a02:2339:1:15c::4562:4562^{🇩🇰 team-blue-denmark2a02:2339::/36}
			PTR	`ns1.simply.com`
		A	91.197.248.78^{🇩🇰 team-blue-denmark91.197.248.0/22}
			PTR	`ns1.simply.com`
NS	`ns2.simply.com`
		A	2a02:2339:4006:101::4562:4562^{🇩🇰 team-blue-denmark2a02:2339:4000::/34}
			PTR	`ns2.simply.com`
		A	185.25.141.15^{🇩🇰 team-blue-denmark185.25.141.0/24 Zitcom A/S}
			PTR	`ns2.simply.com`
NS	`ns3.simply.com`
		A	91.197.248.79^{🇩🇰 team-blue-denmark91.197.248.0/22}
			PTR	`ns3.simply.com`
MX	`aspmx.l.google.com` ⭐
		A	2607:f8b0:4004:c06::1a^{🇺🇸 Google2607:f8b0:4004::/48}
			PTR	`bg-in-f26.1e100.net`
		A	142.251.16.26^{🇺🇸 Google142.251.16.0/24}
			PTR	`bl-in-f26.1e100.net`
MX	`alt1.aspmx.l.google.com`⁽⁵⁾
		A	2800:3f0:4003:c14::1b^{🇨🇱 Google2800:3f0:4003::/48}
		A	192.178.234.26^{🇺🇸 Google192.178.0.0/15}
			PTR	`ncsclj-in-f26.1e100.net`
MX	`alt2.aspmx.l.google.com`⁽⁵⁾
		A	2a00:1450:400b:c02::1a^{🇮🇪 Google2a00:1450:400b::/48}
			PTR	`dj-in-f26.1e100.net`
		A	172.253.116.27^{🇺🇸 Google172.253.116.0/24}
			PTR	`dj-in-f27.1e100.net`
MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:4009:c0f::1b^{🇬🇧 Google2a00:1450:4009::/48}
			PTR	`yulhrs-in-f27.1e100.net`
		A	192.178.223.26^{🇺🇸 Google192.178.223.0/24}
			PTR	`yulhrs-in-f26.1e100.net`
MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
		A	2a00:1450:400c:c23::1a^{🇧🇪 Google2a00:1450:400c::/48}
			PTR	`yubrupd-in-f26.1e100.net`
		A	172.253.157.26^{🇺🇸 Google172.253.0.0/16}
			PTR	`yubrupd-in-f26.1e100.net`
TXT	`v=spf1 include:_spf.google.com include:spf.simply.com -all`
TXT	`google-site-verification=IL3WqD-9N0OXp1PPO0BhSw5gH8JCp9J5Bv65caX9ZJ8`
SOA	`ns1.simply.com`hostmaster@simply.com 2023-11-07 #0

`webfilter.dk`

	DNSSEC	🔒 Signed (DS record present)
	A	5.75.170.83^{🇩🇪 Hetzner5.75.128.0/17 HETZNER-DC}
	NS	`ns1.simply.com` ⭐
	NS	`ns2.simply.com`
	NS	`ns3.simply.com`
	MX	`aspmx.l.google.com` ⭐
	MX	`alt1.aspmx.l.google.com`⁽⁵⁾
	MX	`alt2.aspmx.l.google.com`⁽⁵⁾
	MX	`alt3.aspmx.l.google.com`⁽¹⁰⁾
	MX	`alt4.aspmx.l.google.com`⁽¹⁰⁾
	TXT	`v=spf1 include:_spf.google.com include:spf.simply.com -all`
	TXT	`google-site-verification=IL3WqD-9N0OXp1PPO0BhSw5gH8JCp9J5Bv65caX9ZJ8`
	SOA	`ns1.simply.com`hostmaster@simply.com 2023-11-07 #0

Same first word

sys1.us

sys1.top

sys1.info

sys1.ovh

sys1.fr

sys1.de

sys1.ir

Similar names

1sys.by

1sys.ru

ys1s.net

1sys.ai

1sys.net

DNS History

3 records (1 active, 2 former)

○A46.4.74.1242016-12-25 → 2016-12-25 · 3 obs

● 2016-12-25 03:12:22
○ 2026-04-02 05:17:04
○ 2026-08-17 07:46:34

○CNAMEsystem.webfilter.dk2016-12-25 → 2016-12-25 · 3 obs

● 2016-12-25 03:12:22
○ 2026-04-02 05:17:04
○ 2026-08-17 07:46:34

●CNAMEwebfilter.dk2026-04-02 → 2026-08-17 · 3 obs

○ 2016-12-25 03:12:22
● 2026-04-02 05:17:04
● 2026-08-17 07:46:34

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
dk	b.nic.dk, c.nic.dk, h.nic.dk, l.nic.dk...	12 records
webfilter.dk	ns1.simply.com, ns2.simply.com, ns3.simply.com	-

✅ Authoritative Response

Server:91.197.248.79

NS records: ns1.simply.com, ns2.simply.com, ns3.simply.com

🔒 DNSSEC Status

🔐 Secure (DNSSEC validated)

Chain of trust verified from root to domain

⏱️ Timing

Total: 998ms | Queries: -

📄 Records

Type	Count	Sample Data
CNAME	1	`webfilter.dk`

📌 Glue Records Collected

Total: 12

In-bailiwick: 12 (b.nic.dk, b.nic.dk, c.nic.dk...)

Analysis

IP Addresses

sys1.webfilter.dk resolves to just one IP address, 5.75.170.83.

webfilter.dk and static.83.170.75.5.clients.your-server.de, along with other host names, share IP addresses with sys1.webfilter.dk.

Name Servers

sys1.webfilter.dk is served by three name servers: ns1.simply.com, ns2.simply.com and ns3.simply.com.

sys1.webfilter.dk partially shares its NS delegation with several other domains, including millardtech.com, sportliga.dk, dainfo.dk and two others.

These name servers are regularly seen alongside ns4.simply.com and ns1.unoeuro.com as name servers.

Host names that have two IP addresses:

The A records for ns1.simply.com return 91.197.248.78 and 2a02:2339:1:15c::4562:4562.

The A records for ns2.simply.com return 185.25.141.15 and 2a02:2339:4006:101::4562:4562.

Host names that point to one IP address:

ns3.simply.com resolves to the IP address 91.197.248.79.