ular4d.courses - robtex.com
ular4d.courses
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3032::6815:5c2🇺🇸 Cloudflare2606:4700:3032::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3035::ac43:9aaf🇺🇸 Cloudflare2606:4700:3035::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.5.194Cloudflare104.21.0.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.154.175🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | darl.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b62🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c162🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2162🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| A | 108.162.193.98🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| A | 172.64.33.98🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| A | 173.245.59.98🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | darl.ns.cloudflare.com | ||||||
| NS | rosa.ns.cloudflare.com | ||||||
| A | 2606:4700:50::adf5:3ae4🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c0e4🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:20e4🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| A | 108.162.192.228🇺🇸 Cloudflare108.162.192.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| A | 172.64.32.228🇺🇸 Cloudflare172.64.32.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| A | 173.245.58.228🇺🇸 Cloudflare173.245.58.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | rosa.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.5.194, 172.67.154.175 | ||||||
| IPv6 hints | 2606:4700:3032::6815:5c2, 2606:4700:3035::ac43:9aaf | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=215, name=cloudflare-ech.com | ||||||
| SOA | darl.ns.cloudflare.comdns@cloudflare.com serial=2409237489 | ||||||
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=1785588483 | ||||||
Same first word
ular4d.courses |
ular4d.com |
ular4d.wiki |
ular4d.coupons |
ular4d.cam |
ular4d.help |
ular4d.forum |
ular4d.site |
ular4d.makeup |
DNS History
10 records (6 active, 4 former)
●NSdarl.ns.cloudflare.com2026-07-25 → 2026-08-01 · 2 obs
● 2026-08-01 12:55:50
●NSrosa.ns.cloudflare.com2026-07-25 → 2026-08-01 · 2 obs
● 2026-08-01 12:55:50
●A104.21.5.1942026-08-01 → 2026-08-01 · 2 obs
● 2026-08-01 12:55:50
●A172.67.154.1752026-08-01 → 2026-08-01 · 2 obs
● 2026-08-01 12:55:50
○A188.114.96.02026-07-25 → 2026-07-25 · 2 obs
○ 2026-08-01 12:55:50
○A188.114.97.02026-07-25 → 2026-07-25 · 2 obs
○ 2026-08-01 12:55:50
●A2606:4700:3032::6815:5c22026-08-01 → 2026-08-01 · 2 obs
● 2026-08-01 12:55:50
●A2606:4700:3035::ac43:9aaf2026-08-01 → 2026-08-01 · 2 obs
● 2026-08-01 12:55:50
○A2a06:98c1:3120::2026-07-25 → 2026-07-25 · 2 obs
○ 2026-08-01 12:55:50
○A2a06:98c1:3121::2026-07-25 → 2026-07-25 · 2 obs
○ 2026-08-01 12:55:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| courses | x.nic.courses, a.nic.courses, z.nic.courses, b.nic.courses... | 12 records |
| ular4d.courses | darl.ns.cloudflare.com, rosa.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.58.228
NS records: darl.ns.cloudflare.com, rosa.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for ular4d.courses (unsigned zone)
⏱️ Timing
Total: 492ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.154.175, 104.21.5.194 |
| AAAA | 2 | 2606:4700:3032::6815:5c2, 2606:4700:3035::ac43:9aaf |
| NS | 2 | darl.ns.cloudflare.com, rosa.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | darl.ns.cloudflare.com dns.cloudflare.co |
📌 Glue Records Collected
Total: 12
In-bailiwick: 12 (z.nic.courses, y.nic.courses, x.nic.courses...)
Analysis
IP Addresses
ular4d.courses points to the four IP addresses 104.21.5.194, 172.67.154.175, 2606:4700:3032::6815:5c2 and 2606:4700:3035::ac43:9aaf.
Additional host names — www.toshiba.be, annuaire-tunisie.net, orivexanlura.com and two others — share IP numbers with ular4d.courses.
Name Servers
ular4d.courses is served by two delegated name servers, darl.ns.cloudflare.com and rosa.ns.cloudflare.com.
ular4d.courses shares its name server setup with other domains, including mimi4d.lol, tag4dterbaru.com, sensasi55xxi.site and two others.
At least some of ular4d.courses's name servers are shared with other domains, for example profundobono.com, netfork.org, ski.us and two more.
Host names with 6 IP numbers:
darl.ns.cloudflare.com carries IP addresses 108.162.193.98, 172.64.33.98 and 173.245.59.98, with 3 other addresses beyond those.
rosa.ns.cloudflare.com carries IP addresses 108.162.192.228, 172.64.32.228 and 173.245.58.228, with 3 other addresses beyond those.