opt.pt - robtex.com
opt.pt
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 ⚠️ Not in parent delegation | ||||||
| NS | ns2.nic.fr ⚠️ Not in parent delegation | ||||||
| SOA | curiosity.dns.ptrequest@dns.pt 2026-05-09 #29 | ||||||
Subdomains
Same first word
Similar names
DNS History
9 records (5 active, 4 former)
●NSns1.amenworld.com2015-08-11 → 2026-05-09 · 2 obs
● 2026-05-09 14:33:20
●NSns2.amenworld.com2015-08-11 → 2026-05-09 · 2 obs
● 2026-05-09 14:33:20
○MXalt.new-consulting.pt2015-08-11 → 2018-09-10 · 4 obs
● 2018-09-10 10:52:48
○ 2026-02-19 09:32:16
○ 2026-05-09 14:33:20
○MXmail2.opt.pt2015-08-11 → 2018-09-10 · 4 obs
● 2018-09-10 10:52:48
○ 2026-02-19 09:32:16
○ 2026-05-09 14:33:20
●MXmxc.ptempresas.pt2026-02-19 → 2026-05-09 · 3 obs
● 2026-02-19 09:32:16
● 2026-05-09 14:33:20
●MXopt-pt.mail.protection.outlook.com2026-02-19 → 2026-05-09 · 3 obs
● 2026-02-19 09:32:16
● 2026-05-09 14:33:20
●A151.236.35.1022026-02-19 → 2026-05-09 · 3 obs
● 2026-02-19 09:32:16
● 2026-05-09 14:33:20
○A185.2.103.492015-08-11 → 2016-03-03 · 4 obs
● 2016-03-03 11:12:40
○ 2016-05-22 12:46:34
○ 2026-05-09 14:33:20
○A94.76.204.1042016-05-22 → 2018-09-10 · 5 obs
● 2016-05-22 12:46:34
● 2018-09-10 10:52:48
○ 2026-02-19 09:32:16
○ 2026-05-09 14:33:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pt | a.dns.pt, b.dns.pt, c.dns.pt, d.dns.pt... | - |
| opt.pt | ns2.amenworld.com, ns1.amenworld.com | - |
✅ Authoritative Response
Server:81.88.63.40
NS records: ns2.amenworld.com, ns1.amenworld.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opt.pt (unsigned zone)
⏱️ Timing
Total: 980ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 151.236.35.102 |
| NS | 2 | ns1.amenworld.com, ns2.amenworld.com |
| MX | 2 | mxc.ptempresas.pt (pri: 10), opt-pt.mail.protection.outlook.com (pri: |
| TXT | 2 | MS=ms86937978, v=spf1 a mx include:spf.protection.outlo |
| SOA | 1 | ns1.amenworld.com root.amen.fr |
Analysis
Hierarchy
opt.pt is a parent of www.opt.pt and mail.opt.pt.
IP Addresses
opt.pt resolves to one IP number: 151.236.35.102.
Other host names such as 151-236-35-102.static.as29550.net and www.opt.pt share IP numbers with opt.pt.
Name Servers
opt.pt is delegated to two name servers ns1.amenworld.com and ns2.amenworld.com.
opt.pt shares the same name server setup as other domains, for instance 7darmor.fr, protecfrance.com, euroset.pt, tiagomota.pt and amj.pt.
opt.pt at least partially shares name servers with other domains, for instance martinique-location-voiture.fr, calfitec.be, exportpress.com, maisondesante.info and festilight.com.
These name servers are commonly used alongside ns2.amen.fr and ns1.amen.fr.
Two IP numbers for a host: ns1.amenworld.com points to 2a01:8100:2911::2:184:4 and 81.88.61.4.
One IP number for a host: ns2.amenworld.com points to 81.88.63.40.
Mail Servers
Two mail servers handle opt.pt: mxc.ptempresas.pt and opt-pt.mail.protection.outlook.com.
opt.pt shares some mail servers with other domains, at least partially, for instance armazensreis.pt, frasteel.com, cosy.pt, amtc.pt and moviflor.pt.
these mail servers are commonly used with the mail servers mxp.ptempresas.pt.
Host names with eight IP numbers: opt-pt.mail.protection.outlook.com points to 2a01:111:f403:ca04::8, 2a01:111:f403:ca09::3, 2a01:111:f403:ca09::4, 2a01:111:f403:ca09::c, 52.101.68.5, 52.101.73.12, 52.101.73.22 and 52.101.73.28.
Host names with one IP number: mxc.ptempresas.pt points to 62.28.46.133.