blueblank.cn - robtex.com
blueblank.cn
| DNSSEC | ⚠️ Not signed | ||||||
| NS | ns1.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns1.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.judns.com ⚠️ Not in zone NS records | ||||||
| A | 162.159.27.251Cloudflare162.159.27.0/24 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
| NS | ns2.julydns.com ⚠️ Not in parent delegation | ||||||
| A | 162.159.48.223Cloudflare162.159.48.0/20 , Inc. 101 Townsend Street, San Francisco, California 94107, US | ||||||
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=2034708415 | ||||||
Same first word
blueblank.cn |
DNS History
10 records (4 active, 6 former)
○NSf1g1ns1.dnspod.net2015-07-23 → 2015-07-23 · 3 obs
○ 2026-03-10 14:06:30
○ 2026-04-24 21:50:20
○NSf1g1ns2.dnspod.net2015-07-23 → 2015-07-23 · 3 obs
○ 2026-03-10 14:06:30
○ 2026-04-24 21:50:20
●NSns1.judns.com2026-03-10 → 2026-04-24 · 3 obs
● 2026-03-10 14:06:30
● 2026-04-24 21:50:20
●NSns1.julydns.com2026-03-10 → 2026-04-24 · 3 obs
● 2026-03-10 14:06:30
● 2026-04-24 21:50:20
●NSns2.judns.com2026-03-10 → 2026-04-24 · 3 obs
● 2026-03-10 14:06:30
● 2026-04-24 21:50:20
●NSns2.julydns.com2026-03-10 → 2026-04-24 · 3 obs
● 2026-03-10 14:06:30
● 2026-04-24 21:50:20
○MXmail.skrimple.com2015-11-30 → 2017-04-04 · 4 obs
● 2017-04-04 20:01:54
○ 2026-03-10 14:06:30
○ 2026-04-24 21:50:20
○A103.51.144.812016-08-07 → 2017-04-04 · 5 obs
● 2016-08-07 20:47:50
● 2017-04-04 20:01:54
○ 2026-03-10 14:06:30
○ 2026-04-24 21:50:20
○A123.254.111.1902015-07-23 → 2015-07-23 · 3 obs
○ 2015-11-30 00:13:28
○ 2026-04-24 21:50:20
○A65.19.157.2352015-11-30 → 2016-03-19 · 5 obs
● 2015-11-30 00:13:28
● 2016-03-19 02:32:54
○ 2016-08-07 20:47:50
○ 2026-04-24 21:50:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cn | e.dns.cn, c.dns.cn, a.dns.cn, b.dns.cn... | - |
| blueblank.cn | ns1.judns.com, ns2.judns.com | - |
✅ Authoritative Response
Server:162.159.27.251
NS records: ns1.judns.com, ns2.judns.com
🔒 DNSSEC Status
❌ Bogus (DNSSEC validation failed)
Validation error at cn: Error: DNS query timeout: 203.119.29.1 for DNSKEY cn
⏱️ Timing
Total: 4220ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 2 | ns1.julydns.com, ns2.julydns.com |
Analysis
Name Servers
blueblank.cn is delegated to four name servers: ns1.judns.com, ns2.judns.com, ns1.julydns.com and ns2.julydns.com.
blueblank.cn at least partially shares name servers with other domains, for instance ggwwj.com, dbgyx.cn, ria-edu.com, ztczt.cn and ready-link.com.cn.
Host names with one IP:
ns1.judns.com points to 162.159.27.251.
ns2.judns.com points to 162.159.27.251.
ns1.julydns.com points to 162.159.48.223.
ns2.julydns.com points to 162.159.48.223.
Hosts pointing to 162.159.27.251: ns1.judns.com, ns2.judns.com.
Hosts pointing to 162.159.48.223: ns1.julydns.com, ns2.julydns.com.