difficultblock.com - dns.ninja
difficultblock.com
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=1782038040 | ||||||
Same first word
difficultblock.com |
DNS History
11 records (9 active, 2 former)
●NSpdns73.ultradns.biz2026-05-04 → 2026-06-21 · 2 obs
● 2026-06-21 10:51:20
●NSpdns73.ultradns.co.uk2026-05-04 → 2026-06-21 · 2 obs
● 2026-06-21 10:51:20
●NSpdns73.ultradns.com2026-05-04 → 2026-06-21 · 2 obs
● 2026-06-21 10:51:20
●NSpdns73.ultradns.info2026-05-04 → 2026-06-21 · 2 obs
● 2026-06-21 10:51:20
●NSpdns73.ultradns.net2026-05-04 → 2026-06-21 · 2 obs
● 2026-06-21 10:51:20
●NSpdns73.ultradns.org2026-05-04 → 2026-06-21 · 2 obs
● 2026-06-21 10:51:20
●MXmail2026-05-04 → 2026-06-21 · 2 obs
● 2026-06-21 10:51:20
●A2607:fbe0:1:42::1d2026-05-04 → 2026-06-21 · 5 obs
● 2026-05-10 20:43:08
○ 2026-05-28 09:30:50
○ 2026-06-02 14:11:10
● 2026-06-21 10:51:20
○A2a00:1178:1:4b::1d2026-05-28 → 2026-06-02 · 4 obs
● 2026-05-28 09:30:50
● 2026-06-02 14:11:10
○ 2026-06-21 10:51:20
●A74.117.179.112026-05-04 → 2026-06-21 · 5 obs
● 2026-05-10 20:43:08
○ 2026-05-28 09:30:50
○ 2026-06-02 14:11:10
● 2026-06-21 10:51:20
○A88.85.68.2192026-05-28 → 2026-06-02 · 4 obs
● 2026-05-28 09:30:50
● 2026-06-02 14:11:10
○ 2026-06-21 10:51:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | h.gtld-servers.net, c.gtld-servers.net, g.gtld-servers.net, b.gtld-servers.net... | - |
| difficultblock.com | pdns73.ultradns.net, pdns73.ultradns.com, pdns73.ultradns.org, pdns73.ultradns.biz... | 2 records |
✅ Authoritative Response
Server:156.154.65.73
NS records: pdns73.ultradns.net, pdns73.ultradns.com, pdns73.ultradns.org, pdns73.ultradns.biz, pdns73.ultradns.info, pdns73.ultradns.co.uk
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for difficultblock.com (unsigned zone)
⏱️ Timing
Total: 527ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 74.117.179.11 |
| AAAA | 1 | 2607:fbe0:1:42::1d |
| NS | 6 | pdns73.ultradns.co.uk, pdns73.ultradns.biz... |
| MX | 1 | mail (pri: 10) |
| SOA | 1 | pdns73.ultradns.com pdns73.ultradns.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (pdns73.ultradns.com, pdns73.ultradns.com)
Analysis
IP Addresses
difficultblock.com directs to two IP numbers, 74.117.179.11 and 2607:fbe0:1:42::1d
nutty-break.com, second-director.com, lame-if.com plus two other host names have IP numbers in common with difficultblock.com.
Name Servers
difficultblock.com is served by 6 authoritative name servers — among them pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.info and 3 others.
difficultblock.com partially shares its NS delegation with several other domains, including webapi-services.net, goodnatureddelay.pro, jjbo.net and two others.
These name servers regularly co-occur with the name servers pdns73.ultradns.net, pdns73.ultradns.org and pdns73.ultradns.co.uk.
Host names pointing to two IP addresses:
pdns73.ultradns.biz resolves to two addresses: 156.154.66.73 and 2610:a1:1015::6d.
pdns73.ultradns.com resolves to two addresses: 156.154.64.73 and 2001:502:f3ff::6d.
pdns73.ultradns.info resolves to two addresses: 156.154.68.73 and 2610:a1:1016::6d.
pdns73.ultradns.net resolves to two addresses: 156.154.65.73 and 2610:a1:1014::6d.
pdns73.ultradns.org resolves to two addresses: 156.154.67.73 and 2001:502:4612::6d.
pdns73.ultradns.co.uk resolves to two addresses: 156.154.69.73 and 2610:a1:1017::6d.
Mail Servers
difficultblock.com uses one mail server — mail.
The mail server setup of difficultblock.com matches that of other domains such as bannerflex.com, sounday.it, impressionable-unit.pro and two others.
At least some of the mail servers used by difficultblock.com are shared with other domains: sacheldevelopment.com, blc-ai.com, victorylab.co.za and two others among them.