usability.pt - dns.ninja

`usability.pt`

DNSSEC	⚠️ Not signed
NS	`dns1.host-redirect.com` ⭐
		A	2001:4cc0:4:1::5^{🇵🇹 CLARANET-AS2001:4cc0::/32 Claranet Portugal}
			PTR	`dns1.host-redirect.com`
		A	91.198.47.1^{🇵🇹 Flesk-AS91.198.47.0/24 Dominios}
			PTR	`dns1`
NS	`dns2.host-redirect.com`
		A	2001:4cc0:4:10::5^{🇵🇹 CLARANET-AS2001:4cc0::/32 Claranet Portugal}
			PTR	`dns2.host-redirect.com`
		A	194.8.30.2^{🇵🇹 Flesk-AS194.8.30.0/24 Dominios}
			PTR	`dns2.host-redirect.com`
NS	`dns3.host-redirect.com`
		A	94.126.175.203^{🇵🇹 Flesk-AS94.126.168.0/21 Dominios}
			PTR	`dns3`
NS	`dns4.host-redirect.com`
		A	2001:4cc0:3:a::6dfe^{🇵🇹 CLARANET-AS2001:4cc0::/32 Claranet Portugal}
		A	185.15.23.202^{🇵🇹 ALMOUROLTEC185.15.23.0/24 SERVICOS DE INFORMATICA E INTERNET LDA}
			PTR	`dns4.host-redirect.com`
SOA	`dns1.host-redirect.com`hostmaster@usability.pt 2019-04-01 #0

`pt`

	DNSSEC	🔒 Signed (DS record present)
	NS	`curiosity.dns.pt` ⭐
	NS	`a.dns.pt`
	NS	`b.dns.pt`
	NS	`c.dns.pt`
	NS	`d.dns.pt`
	NS	`e.dns.pt`
	NS	`g.dns.pt`
	NS	`h.dns.pt`
	NS	`ns.dns.br`
	NS	`ns2.nic.fr`
	SOA	`curiosity.dns.pt`request@dns.pt 2026-07-04 #33

Same first word

DNS History

15 records (4 active, 11 former)

●NSdns1.host-redirect.com2026-03-04 → 2026-07-04 · 3 obs

○ 2017-03-21 16:18:22
● 2026-03-04 21:26:14
● 2026-07-04 16:18:04

●NSdns2.host-redirect.com2026-03-04 → 2026-07-04 · 3 obs

○ 2017-03-21 16:18:22
● 2026-03-04 21:26:14
● 2026-07-04 16:18:04

●NSdns3.host-redirect.com2026-03-04 → 2026-07-04 · 3 obs

○ 2017-03-21 16:18:22
● 2026-03-04 21:26:14
● 2026-07-04 16:18:04

●NSdns4.host-redirect.com2026-03-04 → 2026-07-04 · 3 obs

○ 2017-03-21 16:18:22
● 2026-03-04 21:26:14
● 2026-07-04 16:18:04

○NSns1.linode.com2015-07-22 → 2016-07-18 · 4 obs

● 2015-07-22 23:25:48
● 2016-07-18 16:34:10
○ 2017-03-21 16:18:22
○ 2026-07-04 16:18:04

○NSns2.linode.com2015-07-22 → 2016-07-18 · 4 obs

● 2015-07-22 23:25:48
● 2016-07-18 16:34:10
○ 2017-03-21 16:18:22
○ 2026-07-04 16:18:04

○NSns3.linode.com2015-07-22 → 2016-07-18 · 4 obs

● 2015-07-22 23:25:48
● 2016-07-18 16:34:10
○ 2017-03-21 16:18:22
○ 2026-07-04 16:18:04

○NSns4.linode.com2015-07-22 → 2016-07-18 · 4 obs

● 2015-07-22 23:25:48
● 2016-07-18 16:34:10
○ 2017-03-21 16:18:22
○ 2026-07-04 16:18:04

○NSns5.linode.com2015-07-22 → 2016-07-18 · 4 obs

● 2015-07-22 23:25:48
● 2016-07-18 16:34:10
○ 2017-03-21 16:18:22
○ 2026-07-04 16:18:04

○MXalt1.aspmx.l.google.com2015-07-22 → 2016-07-18 · 4 obs

● 2015-07-22 23:25:48
● 2016-07-18 16:34:10
○ 2017-03-21 16:18:22
○ 2026-07-04 16:18:04

○MXalt2.aspmx.l.google.com2015-07-22 → 2016-07-18 · 4 obs

● 2015-07-22 23:25:48
● 2016-07-18 16:34:10
○ 2017-03-21 16:18:22
○ 2026-07-04 16:18:04

○MXaspmx.l.google.com2015-07-22 → 2016-07-18 · 4 obs

● 2015-07-22 23:25:48
● 2016-07-18 16:34:10
○ 2017-03-21 16:18:22
○ 2026-07-04 16:18:04

○MXaspmx2.googlemail.com2015-07-22 → 2016-07-18 · 4 obs

● 2015-07-22 23:25:48
● 2016-07-18 16:34:10
○ 2017-03-21 16:18:22
○ 2026-07-04 16:18:04

○MXaspmx3.googlemail.com2015-07-22 → 2016-07-18 · 4 obs

● 2015-07-22 23:25:48
● 2016-07-18 16:34:10
○ 2017-03-21 16:18:22
○ 2026-07-04 16:18:04

○A178.79.131.72015-07-22 → 2016-07-18 · 4 obs

● 2015-07-22 23:25:48
● 2016-07-18 16:34:10
○ 2017-03-21 16:18:22
○ 2026-07-04 16:18:04

🔍 DNS Trace

📋 Delegation Chain

Zone	Nameservers	Glue
pt	c.dns.pt, d.dns.pt, g.dns.pt, e.dns.pt...	-
usability.pt	dns3.host-redirect.com, dns1.host-redirect.com, dns2.host-redirect.com, dns4.host-redirect.com	-

✅ Authoritative Response

Server:185.15.23.202

NS records: dns3.host-redirect.com, dns1.host-redirect.com, dns2.host-redirect.com, dns4.host-redirect.com

🔒 DNSSEC Status

⚠️ Insecure (no DNSSEC)

No DS record for usability.pt (unsigned zone)

⏱️ Timing

Total: 665ms | Queries: -

📄 Records

Type	Count	Sample Data
NS	4	`dns1.host-redirect.com, dns2.host-redirect.com...`
SOA	1	`dns1.host-redirect.com hostmaster.usabil`

Analysis

Name Servers

Four name servers handle the delegation for usability.pt: dns1.host-redirect.com, dns2.host-redirect.com, dns3.host-redirect.com and dns4.host-redirect.com.

At least some of usability.pt's name servers are shared with other domains, for example urvabiketeam.com, pinalta.com, lavouralusa.com and two more.

Host names pointing to two IP addresses:

dns1.host-redirect.com maps to two IP addresses — 91.198.47.1 and 2001:4cc0:4:1::5.

dns2.host-redirect.com maps to two IP addresses — 194.8.30.2 and 2001:4cc0:4:10::5.

dns4.host-redirect.com maps to two IP addresses — 185.15.23.202 and 2001:4cc0:3:a::6dfe.

Host names resolving to a single IP address:

dns3.host-redirect.com points to the IP address 94.126.175.203.