kursu.dev - robtex.com
kursu.dev
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::6815:3817🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3031::ac43:affd🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.56.23Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.175.253Cloudflare172.67.160.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | darl.ns.cloudflare.com ⭐ | ||||||
| NS | zita.ns.cloudflare.com | ||||||
| MX | mail.kursu.dev ⭐ | ||||||
| TXT | v=spf1 ip4:74.208.44.130 ip6:2607:f1c0:f088:e200::1 a:mail.kursu.dev -all | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.56.23, 172.67.175.253 | ||||||
| IPv6 | 2606:4700:3031::6815:3817, 2606:4700:3031::ac43:affd | ||||||
| SOA | darl.ns.cloudflare.comdns@cloudflare.com serial=2399424603 | ||||||
dev
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns-tld1.charlestonroadregistry.com ⭐ | ||||||
| NS | ns-tld2.charlestonroadregistry.com | ||||||
| NS | ns-tld3.charlestonroadregistry.com | ||||||
| NS | ns-tld4.charlestonroadregistry.com | ||||||
| NS | ns-tld5.charlestonroadregistry.com | ||||||
| SOA | ns-tld1.charlestonroadregistry.comcloud-dns-hostmaster@google.com serial=1 | ||||||
Same first word
Similar names
rusku.com |
ruusk.com |
sukur.info |
kurus.biz |
kruus.info |
sukur.es |
sukur.net |
rusuk.info |
sukur.com |
rukus.com.au |
rusuk.pro |
skuur.com |
rukus.ru |
uskur.biz |
kruus.ee |
sukru.net |
sukru.com |
rusuk.org |
rukus.info |
uskur.com.tr |
kruus.nl |
DNS History
7 records (7 active, 0 former)
●NSdarl.ns.cloudflare.com2026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:33:44
● 2026-03-20 20:33:46
● 2026-03-20 20:33:46
●NSzita.ns.cloudflare.com2026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:33:44
● 2026-03-20 20:33:46
● 2026-03-20 20:33:46
●MXmail.kursu.dev2026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:33:44
● 2026-03-20 20:33:46
● 2026-03-20 20:33:46
●A104.21.56.232026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:33:44
● 2026-03-20 20:33:46
● 2026-03-20 20:33:46
●A172.67.175.2532026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:33:44
● 2026-03-20 20:33:46
● 2026-03-20 20:33:46
●A2606:4700:3031::6815:38172026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:33:44
● 2026-03-20 20:33:46
● 2026-03-20 20:33:46
●A2606:4700:3031::ac43:affd2026-03-20 → 2026-03-20 · 2 obs
● 2026-03-20 20:33:44
● 2026-03-20 20:33:46
● 2026-03-20 20:33:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| dev | ns-tld4.charlestonroadregistry.com, ns-tld1.charlestonroadregistry.com, ns-tld5.charlestonroadregistry.com, ns-tld2.charlestonroadregistry.com... | - |
| kursu.dev | zita.ns.cloudflare.com, darl.ns.cloudflare.com | - |
✅ Authoritative Response
Server: 108.162.192.243
NS records: zita.ns.cloudflare.com, darl.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for kursu.dev (unsigned zone)
⏱️ Timing
Total: 583ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.175.253, 104.21.56.23 |
| AAAA | 2 | 2606:4700:3031::ac43:affd, 2606:4700:3031::6815:3817 |
| NS | 2 | darl.ns.cloudflare.com, zita.ns.cloudflare.com |
| MX | 1 | mail.kursu.dev (pri: 10) |
| TXT | 1 | v=spf1 ip4:74.208.44.130 ip6:2607:f1c0:f |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | darl.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
kursu.dev resolves to four IPs: 2606:4700:3031::6815:3817, 2606:4700:3031::ac43:affd, 104.21.56.23 and 172.67.175.253.
Name Servers
kursu.dev is delegated to two name servers: darl.ns.cloudflare.com and zita.ns.cloudflare.com.