opinto.pt - robtex.com
opinto.pt
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::6815:302a🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3034::ac43:b0b3🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.48.42Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.176.179🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | karina.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::adf5:3ab2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | karina.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0b2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | karina.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20b2🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | karina.ns.cloudflare.com | ||||||
| A | 108.162.192.178🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | karina.ns.cloudflare.com | ||||||
| A | 172.64.32.178🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | karina.ns.cloudflare.com | ||||||
| A | 173.245.58.178🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | karina.ns.cloudflare.com | ||||||
| NS | thomas.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bee🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | thomas.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1ee🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | thomas.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21ee🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | thomas.ns.cloudflare.com | ||||||
| A | 108.162.193.238🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | thomas.ns.cloudflare.com | ||||||
| A | 172.64.33.238🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | thomas.ns.cloudflare.com | ||||||
| A | 173.245.59.238🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | thomas.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.48.42, 172.67.176.179 | ||||||
| IPv6 hints | 2606:4700:3034::6815:302a, 2606:4700:3034::ac43:b0b3 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=148, name=cloudflare-ech.com | ||||||
| SOA | karina.ns.cloudflare.comdns@cloudflare.com serial=2403780408 | ||||||
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 2026-05-12 #20 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSkarina.ns.cloudflare.com2026-04-27 → 2026-05-12 · 2 obs
● 2026-05-12 09:55:18
●NSthomas.ns.cloudflare.com2026-04-27 → 2026-05-12 · 2 obs
● 2026-05-12 09:55:18
●A104.21.48.422026-04-27 → 2026-05-12 · 2 obs
● 2026-05-12 09:55:18
●A172.67.176.1792026-04-27 → 2026-05-12 · 2 obs
● 2026-05-12 09:55:18
●A2606:4700:3034::6815:302a2026-04-27 → 2026-05-12 · 2 obs
● 2026-05-12 09:55:18
●A2606:4700:3034::ac43:b0b32026-04-27 → 2026-05-12 · 2 obs
● 2026-05-12 09:55:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| pt | a.dns.pt, c.dns.pt, e.dns.pt, h.dns.pt... | - |
| opinto.pt | karina.ns.cloudflare.com, thomas.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.178
NS records: karina.ns.cloudflare.com, thomas.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for opinto.pt (unsigned zone)
⏱️ Timing
Total: 931ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.176.179, 104.21.48.42 |
| AAAA | 2 | 2606:4700:3034::ac43:b0b3, 2606:4700:3034::6815:302a |
| NS | 2 | karina.ns.cloudflare.com, thomas.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | karina.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
opinto.pt maps to four IP numbers: 2606:4700:3034::6815:302a, 2606:4700:3034::ac43:b0b3, 104.21.48.42 and 172.67.176.179.
Other host names, for instance goodtohear.co.uk, zmcspgr.life, dpanchal.com, uloli.com and ohlala-indonesia.com share IP numbers with opinto.pt.
Name Servers
Two name servers karina.ns.cloudflare.com and thomas.ns.cloudflare.com handle delegation for opinto.pt.
opinto.pt uses the same name server setup as other domains, for example vitarent.lt, gotyoucovered.healthcare, cpumedmc.com, itsprodigy.com and cpumms.com.
opinto.pt partially shares name servers with other domains; examples include foot4live.com, ukon.su, syrianlove.com, bmzx8.cyou and simclient.com.
These name servers are often used with the name servers wally.ns.cloudflare.com and adrian.ns.cloudflare.com.
Host names with six IP numbers: karina.ns.cloudflare.com points to: 2606:4700:50::adf5:3ab2, 2803:f800:50::6ca2:c0b2, 2a06:98c1:50::ac40:20b2, 108.162.192.178, 172.64.32.178 and 173.245.58.178; thomas.ns.cloudflare.com points to: 2606:4700:58::adf5:3bee, 2803:f800:50::6ca2:c1ee, 2a06:98c1:50::ac40:21ee, 108.162.193.238, 172.64.33.238 and 173.245.59.238.