rcujf.cn - robtex.com
rcujf.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3033::6815:2769🇺🇸 Cloudflare2606:4700:3033::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:9079🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.39.105Cloudflare104.21.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.144.121🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | graham.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3bab🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | graham.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c1ab🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | graham.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:21ab🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | graham.ns.cloudflare.com | ||||||
| A | 108.162.193.171🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | graham.ns.cloudflare.com | ||||||
| A | 172.64.33.171🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | graham.ns.cloudflare.com | ||||||
| A | 173.245.59.171🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | graham.ns.cloudflare.com | ||||||
| NS | harmony.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:2692🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | harmony.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c292🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | harmony.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2292🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | harmony.ns.cloudflare.com | ||||||
| A | 108.162.194.146🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | harmony.ns.cloudflare.com | ||||||
| A | 162.159.38.146Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | harmony.ns.cloudflare.com | ||||||
| A | 172.64.34.146🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | harmony.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.39.105, 172.67.144.121 | ||||||
| IPv6 | 2606:4700:3033::6815:2769, 2606:4700:3036::ac43:9079 | ||||||
| SOA | graham.ns.cloudflare.comdns@cloudflare.com serial=2397327905 | ||||||
cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.dns.cn ⭐ | ||||||
| NS | b.dns.cn | ||||||
| NS | c.dns.cn | ||||||
| NS | d.dns.cn | ||||||
| NS | e.dns.cn | ||||||
| NS | ns.cernet.net ⚠️ Not in parent delegation | ||||||
| SOA | a.dns.cnroot@cnnic.cn serial=2034546407 | ||||||
Same first word
rcujf.cn |
Similar names
DNS History
6 records (6 active, 0 former)
●NSgraham.ns.cloudflare.com2026-03-08 → 2026-03-24 · 2 obs
● 2026-03-24 07:25:24
●NSharmony.ns.cloudflare.com2026-03-08 → 2026-03-24 · 2 obs
● 2026-03-24 07:25:24
●A104.21.39.1052026-03-08 → 2026-03-24 · 2 obs
● 2026-03-24 07:25:24
●A172.67.144.1212026-03-08 → 2026-03-24 · 2 obs
● 2026-03-24 07:25:24
●A2606:4700:3033::6815:27692026-03-08 → 2026-03-24 · 2 obs
● 2026-03-24 07:25:24
●A2606:4700:3036::ac43:90792026-03-08 → 2026-03-24 · 2 obs
● 2026-03-24 07:25:24
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | a.dns.cn, e.dns.cn, c.dns.cn, d.dns.cn... | - |
| rcujf.cn | graham.ns.cloudflare.com, harmony.ns.cloudflare.com | - |
✅ Authoritative Response
Server:173.245.59.171
NS records: graham.ns.cloudflare.com, harmony.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for rcujf.cn (unsigned zone)
⏱️ Timing
Total: 957ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 104.21.39.105, 172.67.144.121 |
| AAAA | 2 | 2606:4700:3033::6815:2769, 2606:4700:3036::ac43:9079 |
| NS | 2 | graham.ns.cloudflare.com, harmony.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | graham.ns.cloudflare.com dns.cloudflare. |
Analysis
IP Addresses
rcujf.cn resolves to four IP numbers: 2606:4700:3033::6815:2769, 2606:4700:3036::ac43:9079, 104.21.39.105 and 172.67.144.121.
Other host names such as bookrecce.com, cshim.cn, sportsjerseysonlineshop.com, twittersaver.net and landing-templates.com share IPs with rcujf.cn.
Name Servers
rcujf.cn is delegated to two name servers: graham.ns.cloudflare.com and harmony.ns.cloudflare.com.
rcujf.cn shares the same name server setup as tjhuanhu.com, lrbe.cn, dycmqnb.cn, supervisionceu.com and cn-sabagame.cn.
rcujf.cn at least partially shares name servers with other domains, for instance mfonda.com, equip-online.com, kulis.az, 21maomg.com and diamondswedding.ca.
These name servers are commonly used together with terin.ns.cloudflare.com, vick.ns.cloudflare.com and june.ns.cloudflare.com.
Host names with six IP numbers:
graham.ns.cloudflare.com points to 2606:4700:58::adf5:3bab, 2803:f800:50::6ca2:c1ab, 2a06:98c1:50::ac40:21ab, 108.162.193.171, 172.64.33.171 and 173.245.59.171.
harmony.ns.cloudflare.com points to 2606:4700:50::a29f:2692, 2803:f800:50::6ca2:c292, 2a06:98c1:50::ac40:2292, 108.162.194.146, 162.159.38.146 and 172.64.34.146.