51jkcf.com - robtex.com
51jkcf.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3031::ac43:b0bc🇺🇸 Cloudflare2606:4700:3031::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3033::6815:1177🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.17.119Cloudflare104.21.16.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.176.188🇺🇸 Cloudflare172.67.176.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | lauryn.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:50::a29f:2616🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lauryn.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c216🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | lauryn.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2216🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | lauryn.ns.cloudflare.com | ||||||
| A | 108.162.194.22🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lauryn.ns.cloudflare.com | ||||||
| A | 162.159.38.22Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lauryn.ns.cloudflare.com | ||||||
| A | 172.64.34.22🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | lauryn.ns.cloudflare.com | ||||||
| NS | sullivan.ns.cloudflare.com | ||||||
| A | 2606:4700:58::a29f:2ca1🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sullivan.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c3a1🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | sullivan.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:23a1🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | sullivan.ns.cloudflare.com | ||||||
| A | 108.162.195.161🇺🇸 Cloudflare108.162.195.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sullivan.ns.cloudflare.com | ||||||
| A | 162.159.44.161Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sullivan.ns.cloudflare.com | ||||||
| A | 172.64.35.161🇺🇸 Cloudflare172.64.35.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | sullivan.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 hints | 104.21.17.119, 172.67.176.188 | ||||||
| IPv6 hints | 2606:4700:3031::ac43:b0bc, 2606:4700:3033::6815:1177 | ||||||
| ECH | X25519, HKDF-SHA256 + AES-128-GCM draft, id=37, name=cloudflare-ech.com | ||||||
| SOA | lauryn.ns.cloudflare.comdns@cloudflare.com serial=2400246753 | ||||||
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=1776095407 | ||||||
Same first word
51jkcf.com |
DNS History
8 records (6 active, 2 former)
●NSlauryn.ns.cloudflare.com2026-04-05 → 2026-04-13 · 3 obs
● 2026-04-05 13:09:08
● 2026-04-13 15:51:12
○NSns17.xincache.com2017-03-14 → 2017-03-14 · 3 obs
○ 2026-04-05 13:09:08
○ 2026-04-13 15:51:12
○NSns18.xincache.com2017-03-14 → 2017-03-14 · 3 obs
○ 2026-04-05 13:09:08
○ 2026-04-13 15:51:12
●NSsullivan.ns.cloudflare.com2026-04-05 → 2026-04-13 · 3 obs
● 2026-04-05 13:09:08
● 2026-04-13 15:51:12
●A104.21.17.1192026-04-05 → 2026-04-13 · 2 obs
● 2026-04-13 15:51:12
●A172.67.176.1882026-04-05 → 2026-04-13 · 2 obs
● 2026-04-13 15:51:12
●A2606:4700:3031::ac43:b0bc2026-04-05 → 2026-04-13 · 2 obs
● 2026-04-13 15:51:12
●A2606:4700:3033::6815:11772026-04-05 → 2026-04-13 · 2 obs
● 2026-04-13 15:51:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| 51jkcf.com | lauryn.ns.cloudflare.com, sullivan.ns.cloudflare.com | 12 records |
✅ Authoritative Response
Server:108.162.195.161
NS records: lauryn.ns.cloudflare.com, sullivan.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 51jkcf.com (unsigned zone)
⏱️ Timing
Total: 134ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.176.188, 104.21.17.119 |
| AAAA | 2 | 2606:4700:3033::6815:1177, 2606:4700:3031::ac43:b0bc |
| NS | 2 | lauryn.ns.cloudflare.com, sullivan.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | lauryn.ns.cloudflare.com dns.cloudflare. |
📌 Glue Records Collected
Total: 12
Out-of-bailiwick: 12 (lauryn.ns.cloudflare.com, lauryn.ns.cloudflare.com, lauryn.ns.cloudflare.com...)
Analysis
IP Addresses
51jkcf.com maps to four IP numbers: 2606:4700:3031::ac43:b0bc, 2606:4700:3033::6815:1177, 104.21.17.119 and 172.67.176.188.
Other host names, for instance www.trsin.com, cbsp.fr, gay(0x706f726e)hotelrom.xyz, computoners.net and www.mbnd.uk.com share IP numbers with 51jkcf.com.
Name Servers
Two name servers lauryn.ns.cloudflare.com and sullivan.ns.cloudflare.com are delegated to 51jkcf.com.
51jkcf.com uses the same name server configuration as other domains, such as gamelibrary.top, hdqhzyxx.com, xingxiuyl.com, sxhpjn.com and aijia0471.com.
51jkcf.com at least partially shares name servers with other domains such as bizarrepages.com, gordon-chan.net, 75432.cc, pixelsstation.com and 2x45winbaik.site.
these name servers are commonly used with dahlia.ns.cloudflare.com, andy.ns.cloudflare.com, sunny.ns.cloudflare.com, henry.ns.cloudflare.com, nick.ns.cloudflare.com and beau.ns.cloudflare.com.
Host names with six IP numbers: Host name lauryn.ns.cloudflare.com points to 2606:4700:50::a29f:2616, 2803:f800:50::6ca2:c216, 2a06:98c1:50::ac40:2216, 108.162.194.22, 162.159.38.22 and 172.64.34.22; host name sullivan.ns.cloudflare.com points to 2606:4700:58::a29f:2ca1, 2803:f800:50::6ca2:c3a1, 2a06:98c1:50::ac40:23a1, 108.162.195.161, 162.159.44.161 and 172.64.35.161.