premiumcourses.io - robtex.com
premiumcourses.io
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3034::ac43:9838🇺🇸 Cloudflare2606:4700:3034::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3037::6815:174🇺🇸 Cloudflare2606:4700:3037::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.1.116Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.152.56🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | sloan.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:2634🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sloan.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c234🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | sloan.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2234🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | sloan.ns.cloudflare.com | ||||||
| A | 108.162.194.52🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sloan.ns.cloudflare.com | ||||||
| A | 162.159.38.52Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sloan.ns.cloudflare.com | ||||||
| A | 172.64.34.52🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sloan.ns.cloudflare.com | ||||||
| NS | trey.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3bf2🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | trey.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1f2🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | trey.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21f2🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | trey.ns.cloudflare.com | ||||||
| A | 108.162.193.242🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | trey.ns.cloudflare.com | ||||||
| A | 172.64.33.242🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | trey.ns.cloudflare.com | ||||||
| A | 173.245.59.242🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | trey.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.1.116, 172.67.152.56 | ||||||
| IPv6 hints | 2606:4700:3034::ac43:9838, 2606:4700:3037::6815:174 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=95, name=cloudflare-ech.com | ||||||
| SOA | sloan.ns.cloudflare.comdns@cloudflare.com serial=2401228711 | ||||||
io
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.io ⭐ | ||||||
| NS | a2.nic.io | ||||||
| NS | b0.nic.io | ||||||
| NS | c0.nic.io | ||||||
| SOA | a0.nic.iohostmaster@donuts.email serial=1778761919 | ||||||
Same first word
premiumcourses.org |
premiumcourses.io |
Similar names
DNS History
6 records (6 active, 0 former)
●NSsloan.ns.cloudflare.com2026-04-27 → 2026-05-14 · 2 obs
● 2026-05-14 12:49:00
●NStrey.ns.cloudflare.com2026-04-27 → 2026-05-14 · 2 obs
● 2026-05-14 12:49:00
●A104.21.1.1162026-04-27 → 2026-05-14 · 2 obs
● 2026-05-14 12:49:00
●A172.67.152.562026-04-27 → 2026-05-14 · 2 obs
● 2026-05-14 12:49:00
●A2606:4700:3034::ac43:98382026-04-27 → 2026-05-14 · 2 obs
● 2026-05-14 12:49:00
●A2606:4700:3037::6815:1742026-04-27 → 2026-05-14 · 2 obs
● 2026-05-14 12:49:00
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| io | a0.nic.io, a2.nic.io, b0.nic.io, c0.nic.io | - |
| premiumcourses.io | trey.ns.cloudflare.com, sloan.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.34.52
NS records: trey.ns.cloudflare.com, sloan.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for premiumcourses.io (unsigned zone)
⏱️ Timing
Total: 783ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.1.116, 172.67.152.56 |
| AAAA | 2 | 2606:4700:3037::6815:174, 2606:4700:3034::ac43:9838 |
| NS | 2 | sloan.ns.cloudflare.com, trey.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | sloan.ns.cloudflare.com dns.cloudflare.c |
Analysis
IP Addresses
premiumcourses.io points to four IP numbers: 2606:4700:3034::ac43:9838, 2606:4700:3037::6815:174, 104.21.1.116 and 172.67.152.56.
Other host names, for instance nexus247code.buzz, 0b5h.com.cdn.cloudflare.net, ogilvyconsulting.org, j200m-cair.boats and somos.marketing share IP numbers with premiumcourses.io.
Name Servers
premiumcourses.io is delegated to two name servers: sloan.ns.cloudflare.com and trey.ns.cloudflare.com.
premiumcourses.io uses the same name server setup as other domains, for instance gg88.wales, theclosers.io, m88zo.com, mm88ak.com and kjc.events.
premiumcourses.io shares name servers with other domains at least partially, for instance blueradiodance.com, newcastleastonmartin.co.uk, vicloud.vn, mediconnexionsconsulting.com and stormznet.com.
these name servers are commonly used together with cris.ns.cloudflare.com and lina.ns.cloudflare.com.
Host names with six IP numbers: sloan.ns.cloudflare.com points to 2606:4700:50::a29f:2634, 2803:f800:50::6ca2:c234, 2a06:98c1:50::ac40:2234, 108.162.194.52, 162.159.38.52 and 172.64.34.52; trey.ns.cloudflare.com points to 2606:4700:58::adf5:3bf2, 2803:f800:50::6ca2:c1f2, 2a06:98c1:50::ac40:21f2, 108.162.193.242, 172.64.33.242 and 173.245.59.242.