hacktorank.com - robtex.com
hacktorank.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:9236🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::6815:5fa7🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.95.167Cloudflare104.21.80.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.146.54🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | felipe.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::a29f:2c74🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | felipe.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c374🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | felipe.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2374🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | felipe.ns.cloudflare.com | ||||||
| A | 108.162.195.116🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | felipe.ns.cloudflare.com | ||||||
| A | 162.159.44.116Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | felipe.ns.cloudflare.com | ||||||
| A | 172.64.35.116🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | felipe.ns.cloudflare.com | ||||||
| NS | oaklyn.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:265a🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | oaklyn.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c25a🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | oaklyn.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:225a🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | oaklyn.ns.cloudflare.com | ||||||
| A | 108.162.194.90🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | oaklyn.ns.cloudflare.com | ||||||
| A | 162.159.38.90Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | oaklyn.ns.cloudflare.com | ||||||
| A | 172.64.34.90🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | oaklyn.ns.cloudflare.com | ||||||
| TXT | google-site-verification=fsDEC8CiPaDnF5gFt0dHjkWjSXu2QYAMgVCicI_Ym9E | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.95.167, 172.67.146.54 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:9236, 2606:4700:3033::6815:5fa7 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=182, name=cloudflare-ech.com | ||||||
| SOA | felipe.ns.cloudflare.comdns@cloudflare.com serial=2411027585 | ||||||
com
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.gtld-servers.net ⭐ | ||||||
| NS | b.gtld-servers.net | ||||||
| NS | c.gtld-servers.net | ||||||
| NS | d.gtld-servers.net | ||||||
| NS | e.gtld-servers.net | ||||||
| NS | f.gtld-servers.net | ||||||
| NS | g.gtld-servers.net | ||||||
| NS | h.gtld-servers.net | ||||||
| NS | i.gtld-servers.net | ||||||
| NS | j.gtld-servers.net | ||||||
| NS | k.gtld-servers.net | ||||||
| NS | l.gtld-servers.net | ||||||
| NS | m.gtld-servers.net | ||||||
| SOA | a.gtld-servers.netnstld@verisign-grs.com serial=1787566681 | ||||||
Same first word
hacktorank.com |
Previous names
Next names
DNS History
10 records (6 active, 4 former)
●NSfelipe.ns.cloudflare.com2026-08-17 → 2026-08-24 · 2 obs
● 2026-08-24 10:45:34
●NSoaklyn.ns.cloudflare.com2026-08-17 → 2026-08-24 · 2 obs
● 2026-08-24 10:45:34
●A104.21.95.1672026-08-17 → 2026-08-24 · 4 obs
○ 2026-08-17 22:55:34
● 2026-08-24 05:27:06
● 2026-08-24 10:45:34
●A172.67.146.542026-08-17 → 2026-08-24 · 4 obs
○ 2026-08-17 22:55:34
● 2026-08-24 05:27:06
● 2026-08-24 10:45:34
○A188.114.96.02026-08-17 → 2026-08-17 · 4 obs
● 2026-08-17 22:55:34
○ 2026-08-24 05:27:06
○ 2026-08-24 10:45:34
○A188.114.97.02026-08-17 → 2026-08-17 · 4 obs
● 2026-08-17 22:55:34
○ 2026-08-24 05:27:06
○ 2026-08-24 10:45:34
●A2606:4700:3031::ac43:92362026-08-17 → 2026-08-24 · 4 obs
○ 2026-08-17 22:55:34
● 2026-08-24 05:27:06
● 2026-08-24 10:45:34
●A2606:4700:3033::6815:5fa72026-08-17 → 2026-08-24 · 4 obs
○ 2026-08-17 22:55:34
● 2026-08-24 05:27:06
● 2026-08-24 10:45:34
○A2a06:98c1:3120::2026-08-17 → 2026-08-17 · 4 obs
● 2026-08-17 22:55:34
○ 2026-08-24 05:27:06
○ 2026-08-24 10:45:34
○A2a06:98c1:3121::2026-08-17 → 2026-08-17 · 4 obs
● 2026-08-17 22:55:34
○ 2026-08-24 05:27:06
○ 2026-08-24 10:45:34
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| hacktorank.com | oaklyn.ns.cloudflare.com, felipe.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:172.64.34.90
NS records: oaklyn.ns.cloudflare.com, felipe.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for hacktorank.com (unsigned zone)
⏱️ Timing
Total: 212ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.146.54, 104.21.95.167 |
| AAAA | 2 | 2606:4700:3033::6815:5fa7, 2606:4700:3031::ac43:9236 |
| NS | 2 | felipe.ns.cloudflare.com, oaklyn.ns.cloudflare.com |
| TXT | 1 | google-site-verification=fsDEC8CiPaDnF5g |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | felipe.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (oaklyn.ns.cloudflare.com, oaklyn.ns.cloudflare.com, oaklyn.ns.cloudflare.com...)
Analysis
IP Addresses
hacktorank.com has four IP addresses: 104.21.95.167, 172.67.146.54, 2606:4700:3031::ac43:9236 and 2606:4700:3033::6815:5fa7.
Additional host names — criapolis.com.br, basil-maple-canyon.space, ns2.omaddiet.com and two others — share IP numbers with hacktorank.com.
Name Servers
hacktorank.com uses two name servers for its delegation: felipe.ns.cloudflare.com and oaklyn.ns.cloudflare.com.
hacktorank.com shares its name server setup with other domains, including haustechnikshop24.ch, bwf.pages.dev, sanitaershop24.ch and two others.
hacktorank.com has at least partial name server overlap with other domains, such as joybj.com, joker123gaming.co, pincase.xyz and two others.
These name servers tend to appear together with the name servers alberto.ns.cloudflare.com, nancy.ns.cloudflare.com and heidi.ns.cloudflare.com.
Host names with 6 IP numbers:
Hostname felipe.ns.cloudflare.com directs to 108.162.195.116, 162.159.44.116 and 172.64.35.116 along with 3 other IP addresses.
Hostname oaklyn.ns.cloudflare.com directs to 108.162.194.90, 162.159.38.90 and 172.64.34.90 along with 3 other IP addresses.