clckdct.courses - robtex.com
clckdct.courses
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3030::6815:3c6🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3030::ac43:8325🇺🇸 Cloudflare2606:4700:3030::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.3.198Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.131.37🇺🇸 Cloudflare172.67.128.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | melody.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:26fa🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melody.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2fa🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | melody.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22fa🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | melody.ns.cloudflare.com | ||||||
| A | 108.162.194.250🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melody.ns.cloudflare.com | ||||||
| A | 162.159.38.250Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melody.ns.cloudflare.com | ||||||
| A | 172.64.34.250🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | melody.ns.cloudflare.com | ||||||
| NS | will.ns.cloudflare.com | ||||||
| A | 2606:4700:58::adf5:3b95🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | will.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c195🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | will.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2195🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | will.ns.cloudflare.com | ||||||
| A | 108.162.193.149🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | will.ns.cloudflare.com | ||||||
| A | 172.64.33.149🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | will.ns.cloudflare.com | ||||||
| A | 173.245.59.149🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | will.ns.cloudflare.com | ||||||
| TXT | google-site-verification=hBJEIjYJRuegX16l36LQ-OwrbIc8aiU97O0Ff-i7m-M | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.3.198, 172.67.131.37 | ||||||
| IPv6 hints | 2606:4700:3030::6815:3c6, 2606:4700:3030::ac43:8325 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=98, name=cloudflare-ech.com | ||||||
| SOA | melody.ns.cloudflare.comdns@cloudflare.com serial=2401891277 | ||||||
courses
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.courses ⭐ | ||||||
| NS | b.nic.courses | ||||||
| NS | c.nic.courses | ||||||
| NS | x.nic.courses | ||||||
| NS | y.nic.courses | ||||||
| NS | z.nic.courses | ||||||
| SOA | a.nic.coursesadmin@tldns.godaddy serial=1776909340 | ||||||
Same first word
clckdct.courses |
DNS History
6 records (6 active, 0 former)
●NSmelody.ns.cloudflare.com2026-03-28 → 2026-04-23 · 2 obs
● 2026-04-23 02:22:30
●NSwill.ns.cloudflare.com2026-03-28 → 2026-04-23 · 2 obs
● 2026-04-23 02:22:30
●A104.21.3.1982026-03-28 → 2026-04-23 · 2 obs
● 2026-04-23 02:22:30
●A172.67.131.372026-03-28 → 2026-04-23 · 2 obs
● 2026-04-23 02:22:30
●A2606:4700:3030::6815:3c62026-03-28 → 2026-04-23 · 2 obs
● 2026-04-23 02:22:30
●A2606:4700:3030::ac43:83252026-03-28 → 2026-04-23 · 2 obs
● 2026-04-23 02:22:30
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| courses | a.nic.courses, b.nic.courses, c.nic.courses, x.nic.courses... | 12 records |
| clckdct.courses | melody.ns.cloudflare.com, will.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.149
NS records: melody.ns.cloudflare.com, will.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for clckdct.courses (unsigned zone)
⏱️ Timing
Total: 351ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.131.37, 104.21.3.198 |
| AAAA | 2 | 2606:4700:3030::ac43:8325, 2606:4700:3030::6815:3c6 |
| NS | 2 | melody.ns.cloudflare.com, will.ns.cloudflare.com |
| TXT | 1 | google-site-verification=hBJEIjYJRuegX16 |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | melody.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (a.nic.courses, a.nic.courses, b.nic.courses...)
Analysis
IP Addresses
clckdct.courses resolves to four IP numbers: 2606:4700:3030::6815:3c6, 2606:4700:3030::ac43:8325, 104.21.3.198 and 172.67.131.37.
other host names for instance metalop.com, mt-live.net, liquid-news.com, borghorst.biz and mqm.org share IP numbers with clckdct.courses.
Name Servers
clckdct.courses is delegated to two name servers: melody.ns.cloudflare.com and will.ns.cloudflare.com.
clckdct.courses shares the same name server setup as other domains, for example maviweb.org, wpdcpi.digital, portlandphoenix.me, (0x786e7878)(0x706f726e)s.com and zbobbert.com.
clckdct.courses at least partially shares name servers with other domains, for instance centrodobleamor.com, 2noyx7.com, vgtevnzhlujfv.website, sheilasfloristmexborough.co.uk and owdefgcqhxtyf.store.
These name servers are often used with dawn.ns.cloudflare.com and rocky.ns.cloudflare.com.
Host names with six IP numbers:
melody.ns.cloudflare.com points to: 2606:4700:50::a29f:26fa, 2803:f800:50::6ca2:c2fa, 2a06:98c1:50::ac40:22fa, 108.162.194.250, 162.159.38.250 and 172.64.34.250; will.ns.cloudflare.com points to: 2606:4700:58::adf5:3b95, 2803:f800:50::6ca2:c195, 2a06:98c1:50::ac40:2195, 108.162.193.149, 172.64.33.149 and 173.245.59.149.