bigblackbook.mx - robtex.com
bigblackbook.mx
| DNSSEC | ⚠️ Not signed | ||||||
| A | 204.74.99.100🇺🇸 MAINT-ID-12008204.74.99.0/24 Neustar | ||||||
| PTR | crs.ultradns.net | ||||||
| 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.comhostmaster@hearst.com.bigblackbook.mx 2015-03-16 #4 | ||||||
mx
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | m.mx-ns.mx ⭐ | ||||||
| NS | c.mx-ns.mx | ||||||
| NS | e.mx-ns.mx | ||||||
| NS | i.mx-ns.mx | ||||||
| NS | o.mx-ns.mx | ||||||
| NS | x.mx-ns.mx | ||||||
| TXT | v=spf1 -all | ||||||
| SOA | m.mx-ns.mxhostmaster@nic.mx serial=1785734315 | ||||||
Same first word
bigblackbook.mx |
bigblackbook.com.mx |
bigblackbook.com |
DNS History
5 records (5 active, 0 former)
●NSpdns73.ultradns.biz2015-05-07 → 2026-08-03 · 2 obs
● 2026-08-03 05:51:14
●NSpdns73.ultradns.com2015-05-07 → 2026-08-03 · 2 obs
● 2026-08-03 05:51:14
●NSpdns73.ultradns.net2015-05-07 → 2026-08-03 · 2 obs
● 2026-08-03 05:51:14
●NSpdns73.ultradns.org2015-05-07 → 2026-08-03 · 2 obs
● 2026-08-03 05:51:14
●A204.74.99.1002015-05-07 → 2026-08-03 · 2 obs
● 2026-08-03 05:51:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| mx | c.mx-ns.mx, e.mx-ns.mx, i.mx-ns.mx, m.mx-ns.mx... | - |
| bigblackbook.mx | pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.net, pdns73.ultradns.org | - |
✅ Authoritative Response
Server:156.154.65.73
NS records: pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.net, pdns73.ultradns.org
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for bigblackbook.mx (unsigned zone)
⏱️ Timing
Total: 437ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 204.74.99.100 |
| NS | 4 | pdns73.ultradns.biz, pdns73.ultradns.com... |
| SOA | 1 | pdns73.ultradns.com hostmaster.hearst.co |
Analysis
IP Addresses
bigblackbook.mx points to a single IP number: 204.74.99.100.
Additional host names — humanafoundation.org, foliofin.com, www.mandaportal.com and two others — share IP numbers with bigblackbook.mx.
Name Servers
bigblackbook.mx has four authoritative name servers: pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.net and pdns73.ultradns.org.
bigblackbook.mx has at least partial name server overlap with other domains, such as harmfulbrother.pro, 8p86.com, 8md.net and two others.
It is common to find these name servers paired with the name servers pdns73.ultradns.info, pdns73.ultradns.co.uk, ns59.ultradns2.com and ns59.ultradns2.org.
pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.net and pdns73.ultradns.org all point to exactly two IP numbers each: pdns73.ultradns.biz → 156.154.66.73 and 2610:a1:1015::6d; pdns73.ultradns.com → 156.154.64.73 and 2001:502:f3ff::6d; pdns73.ultradns.net → 156.154.65.73 and 2610:a1:1014::6d; pdns73.ultradns.org → 156.154.67.73 and 2001:502:4612::6d.