021rt.cn - robtex.com
021rt.cn
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2606:4700:3036::6815:3723🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 2606:4700:3036::ac43:906a🇺🇸 Cloudflare2606:4700:3036::/48 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 104.21.55.35Cloudflare104.21.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| A | 172.67.144.106🇺🇸 Cloudflare172.67.144.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US ✓ In HTTPS hints | ||||||
| NS | ajay.ns.cloudflare.com ⭐ | ||||||
| A | 2606:4700:58::adf5:3b38🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c138🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:2138🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 108.162.193.56🇺🇸 Cloudflare108.162.193.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 172.64.33.56🇺🇸 Cloudflare172.64.33.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| A | 173.245.59.56🇺🇸 Cloudflare173.245.59.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | ajay.ns.cloudflare.com | ||||||
| NS | olivia.ns.cloudflare.com | ||||||
| A | 2606:4700:50::a29f:26dd🇺🇸 Cloudflare2606:4700:50::/44 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 2803:f800:50::6ca2:c2dd🇨🇷 Cloudflare2803:f800:50::/45 LACNIC generated route6 for CloudFlare Latin America S.R.L | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 2a06:98c1:50::ac40:22dd🇺🇸 Cloudflare2a06:98c1:50::/45 | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 108.162.194.221🇺🇸 Cloudflare108.162.194.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 162.159.38.221Cloudflare162.159.32.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| A | 172.64.34.221🇺🇸 Cloudflare172.64.34.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| PTR | olivia.ns.cloudflare.com | ||||||
| HTTPS | HTTP/3, HTTP/2 ✓ hints match | ||||||
| IPv4 | 104.21.55.35, 172.67.144.106 | ||||||
| IPv6 | 2606:4700:3036::6815:3723, 2606:4700:3036::ac43:906a | ||||||
| SOA | ajay.ns.cloudflare.comdns@cloudflare.com serial=2400064515 | ||||||
cn
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| 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=2034593650 | ||||||
Same first word
021rt.cn |
Similar names
DNS History
9 records (6 active, 3 former)
●NSajay.ns.cloudflare.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 12:39:22
○NSdns31.hichina.com2019-05-01 → 2019-05-01 · 2 obs
○ 2026-03-27 12:39:22
○NSdns32.hichina.com2019-05-01 → 2019-05-01 · 2 obs
○ 2026-03-27 12:39:22
●NSolivia.ns.cloudflare.com2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 12:39:22
○A103.245.208.522019-05-01 → 2019-05-01 · 2 obs
○ 2026-03-27 12:39:22
●A104.21.55.352026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 12:39:22
●A172.67.144.1062026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 12:39:22
●A2606:4700:3036::6815:37232026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 12:39:22
●A2606:4700:3036::ac43:906a2026-03-27 → 2026-03-27 · 2 obs
● 2026-03-27 12:39:22
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | b.dns.cn, a.dns.cn, c.dns.cn, d.dns.cn... | - |
| 021rt.cn | ajay.ns.cloudflare.com, olivia.ns.cloudflare.com | - |
✅ Authoritative Response
Server:172.64.33.56
NS records: ajay.ns.cloudflare.com, olivia.ns.cloudflare.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 021rt.cn (unsigned zone)
⏱️ Timing
Total: 368ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 172.67.144.106, 104.21.55.35 |
| AAAA | 2 | 2606:4700:3036::6815:3723, 2606:4700:3036::ac43:906a |
| NS | 2 | ajay.ns.cloudflare.com, olivia.ns.cloudflare.com |
| HTTPS | 1 | {"priority":1,"target":".","alpn":["h3", |
| SOA | 1 | ajay.ns.cloudflare.com dns.cloudflare.co |
Analysis
IP Addresses
021rt.cn points to four IP numbers: 2606:4700:3036::6815:3723, 2606:4700:3036::ac43:906a, 104.21.55.35 and 172.67.144.106.
Other host names, for instance starpark.tw, pasjaelektryka.pl, grillinwithdad.com, mcmacter.com and stemmarinescienceacademy.org share IP numbers with 021rt.cn.
Name Servers
021rt.cn is delegated to two name servers: ajay.ns.cloudflare.com and olivia.ns.cloudflare.com.
021rt.cn uses the same name server setup as other domains, for instance ypvx.cn, qssq66.cn, m112.cn, jixie1688.cn and k4444.cn.
021rt.cn shares name servers with other domains at least partially, for instance leucadia-jeffries.com, eutbkxdb.cc, apps-desktops-download.com, bxpcygky.cc and jtmsnpk.cc.
These name servers are commonly used with peyton.ns.cloudflare.com, paityn.ns.cloudflare.com, leonidas.ns.cloudflare.com and quincy.ns.cloudflare.com.
Host names with six IP numbers: ajay.ns.cloudflare.com points to 2606:4700:58::adf5:3b38, 2803:f800:50::6ca2:c138, 2a06:98c1:50::ac40:2138, 108.162.193.56, 172.64.33.56 and 173.245.59.56; olivia.ns.cloudflare.com points to 2606:4700:50::a29f:26dd, 2803:f800:50::6ca2:c2dd, 2a06:98c1:50::ac40:22dd, 108.162.194.221, 162.159.38.221 and 172.64.34.221.