55knb.cc - robtex.com
55knb.cc
| DNSSEC | ⚠️ Not signed | ||||||
| NS | pdns73.ultradns.com ⭐ | ||||||
| A | 2001:502:f3ff::6d🇺🇸 MAINT-ID-120082001:502:f3ff::/48 Neustar | ||||||
| PTR | pdns73.ultradns.com | ||||||
| A | 156.154.64.73🇺🇸 MAINT-ID-12008156.154.64.0/24 Neustar | ||||||
| PTR | pdns73.ultradns.com | ||||||
| NS | pdns73.ultradns.biz | ||||||
| A | 2610:a1:1015::6d🇺🇸 MAINT-ID-120082610:a1:1015::/48 Neustar | ||||||
| PTR | pdns73.ultradns.biz | ||||||
| A | 156.154.66.73🇺🇸 MAINT-ID-12008156.154.66.0/24 Neustar | ||||||
| PTR | pdns73.ultradns.biz | ||||||
| NS | pdns73.ultradns.net | ||||||
| A | 2610:a1:1014::6d🇺🇸 MAINT-ID-120082610:a1:1014::/48 Neustar | ||||||
| PTR | pdns73.ultradns.net | ||||||
| A | 156.154.65.73🇺🇸 MAINT-ID-12008156.154.65.0/24 Neustar | ||||||
| PTR | pdns73.ultradns.net | ||||||
| NS | pdns73.ultradns.org | ||||||
| A | 2001:502:4612::6d🇺🇸 MAINT-ID-120082001:502:4612::/48 Neustar | ||||||
| PTR | pdns73.ultradns.org | ||||||
| A | 156.154.67.73🇺🇸 MAINT-ID-12008156.154.67.0/24 Neustar | ||||||
| PTR | pdns73.ultradns.org | ||||||
| SOA | pdns73.ultradns.cominfra@nettium.net 2020-07-23 #18 | ||||||
cc
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ac1.nstld.com ⭐ | ||||||
| NS | ac2.nstld.com | ||||||
| NS | ac3.nstld.com | ||||||
| NS | ac4.nstld.com | ||||||
| SOA | ac1.nstld.cominfo@verisign-grs.com serial=1785730993 | ||||||
📈 Tranco rank: #667,588
⚠️ On DNS blocklist: spam-tlds
Subdomains
cache.55knb.cc |
Same first word
55knb.cc |
Similar names
DNS History
4 records (4 active, 0 former)
●NSpdns73.ultradns.biz2026-03-09 → 2026-08-03 · 2 obs
● 2026-08-03 04:23:54
●NSpdns73.ultradns.com2026-03-09 → 2026-08-03 · 2 obs
● 2026-08-03 04:23:54
●NSpdns73.ultradns.net2026-03-09 → 2026-08-03 · 2 obs
● 2026-08-03 04:23:54
●NSpdns73.ultradns.org2026-03-09 → 2026-08-03 · 2 obs
● 2026-08-03 04:23:54
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| cc | ac4.nstld.com, ac3.nstld.com, ac1.nstld.com, ac2.nstld.com | 8 records |
| 55knb.cc | pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.org, pdns73.ultradns.net | - |
✅ Authoritative Response
Server:156.154.66.73
NS records: pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.org, pdns73.ultradns.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for 55knb.cc (unsigned zone)
⏱️ Timing
Total: 574ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | pdns73.ultradns.biz, pdns73.ultradns.com... |
| SOA | 1 | pdns73.ultradns.com infra.nettium.net |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ac4.nstld.com, ac3.nstld.com, ac2.nstld.com...)
Analysis
Hierarchy
cache.55knb.cc is delegated beneath 55knb.cc.
Name Servers
The authoritative name servers for 55knb.cc are pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.net and pdns73.ultradns.org.
There is at least partial name server overlap between 55knb.cc and other domains — punysafety.com, h8x6.com, f7838.com and two more among them.
These name servers frequently co-occur with the name servers pdns73.ultradns.info and pdns73.ultradns.co.uk.
All four hostnames — pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.net and pdns73.ultradns.org — resolve to two IP numbers apiece: pdns73.ultradns.biz to 156.154.66.73 and 2610:a1:1015::6d; pdns73.ultradns.com to 156.154.64.73 and 2001:502:f3ff::6d; pdns73.ultradns.net to 156.154.65.73 and 2610:a1:1014::6d; pdns73.ultradns.org to 156.154.67.73 and 2001:502:4612::6d.