biwei21.com - robtex.com
biwei21.com
| DNSSEC | ⚠️ Not signed | ||||||
| A | 175.29.111.194🇧🇩 synertech175.29.111.0/24 Access Telecom (BD) Ltd Suite 901 Concord Tower 113 Kazi Nazrul Islam Avenue | ||||||
| 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 2020-04-22 #41 | ||||||
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=1785748997 | ||||||
Same first word
biwei21.com |
Similar names
DNS History
8 records (5 active, 3 former)
○NSns09.domaincontrol.com2019-12-18 → 2019-12-18 · 3 obs
○ 2026-08-02 18:10:04
○ 2026-08-03 09:36:28
○NSns10.domaincontrol.com2019-12-18 → 2019-12-18 · 3 obs
○ 2026-08-02 18:10:04
○ 2026-08-03 09:36:28
●NSpdns73.ultradns.biz2026-08-02 → 2026-08-03 · 3 obs
● 2026-08-02 18:10:04
● 2026-08-03 09:36:28
●NSpdns73.ultradns.com2026-08-02 → 2026-08-03 · 3 obs
● 2026-08-02 18:10:04
● 2026-08-03 09:36:28
●NSpdns73.ultradns.net2026-08-02 → 2026-08-03 · 3 obs
● 2026-08-02 18:10:04
● 2026-08-03 09:36:28
●NSpdns73.ultradns.org2026-08-02 → 2026-08-03 · 3 obs
● 2026-08-02 18:10:04
● 2026-08-03 09:36:28
○A165.84.232.302019-12-18 → 2019-12-18 · 3 obs
○ 2026-08-02 18:10:04
○ 2026-08-03 09:36:28
●A175.29.111.1942026-08-02 → 2026-08-03 · 3 obs
● 2026-08-02 18:10:04
● 2026-08-03 09:36:28
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | g.gtld-servers.net, j.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net... | - |
| biwei21.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
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for biwei21.com (unsigned zone)
⏱️ Timing
Total: 379ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 175.29.111.194 |
| NS | 4 | pdns73.ultradns.biz, pdns73.ultradns.com... |
| SOA | 1 | pdns73.ultradns.com infra.nettium.net |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (pdns73.ultradns.com, pdns73.ultradns.com)
Analysis
IP Addresses
biwei21.com resolves to just one IP address, 175.29.111.194.
Two other host names, along with tiyubiwei.com, bw88wc.com and ibway99.com, also share IP numbers with biwei21.com.
Name Servers
The NS records for biwei21.com point to four name servers: pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.net and pdns73.ultradns.org.
The name servers of biwei21.com overlap at least partially with those of other domains — among them verifiablemarketing.com, 66buzz.com, cosmopolitantv.mx and two more.
These name servers commonly appear alongside the name servers pdns73.ultradns.info and pdns73.ultradns.co.uk.
Each of the four hosts pdns73.ultradns.biz, pdns73.ultradns.com, pdns73.ultradns.net and pdns73.ultradns.org has two IP addresses. pdns73.ultradns.biz points to 156.154.66.73 and 2610:a1:1015::6d. pdns73.ultradns.com points to 156.154.64.73 and 2001:502:f3ff::6d. pdns73.ultradns.net points to 156.154.65.73 and 2610:a1:1014::6d. pdns73.ultradns.org points to 156.154.67.73 and 2001:502:4612::6d.