content4ads.com - robtex.com
content4ads.com
| DNSSEC | ⚠️ Not signed | ||||||
| NS | content4ads.com ⭐ | ||||||
| NS | ns1.baidu.com ⚠️ Not in zone NS records | ||||||
| A | 240e:bf:b801:1002:0:ff:b024:26de🇨🇳 CHINANET-SHAANXI-CLOUD-BASE240e:bf:b800::/37 chinanet/CN2 shaanxi province network | ||||||
| A | 110.242.68.134🇨🇳 CHINA169-Backbone110.240.0.0/12 China Unicom Hebei Province Network | ||||||
| NS | ns1.content4ads.com ⚠️ Not in parent delegation | ||||||
| A | 2400:da00:400:ffff:1:1:1:1🇨🇳 Baidu2400:da00:400::/48 | ||||||
| A | 110.242.68.134🇨🇳 CHINA169-Backbone110.240.0.0/12 China Unicom Hebei Province Network | ||||||
| NS | ns2.baidu.com ⚠️ Not in zone NS records | ||||||
| A | 240e:940:603:4:0:ff:b01b:589a🇨🇳 CHINANET-BACKBONE240e:940::/32 China Telecom (Hebei) Limited | ||||||
| A | 220.181.33.31🇨🇳 CHINA-1220.181.32.0/19 China Telecom Beijing Co. Ltd. | ||||||
| NS | ns2.content4ads.com ⚠️ Not in parent delegation | ||||||
| A | 61.135.165.235🇨🇳 CHINA169-BJ61.135.160.0/21 CMI (Customer Route) | ||||||
| NS | ns3.baidu.com ⚠️ Not in zone NS records | ||||||
| A | 36.155.132.78🇨🇳 CMNET-Jiangsu-AP36.155.128.0/20 CMI (Customer Route) | ||||||
| A | 153.3.238.93🇨🇳 CHINA169-Backbone153.3.0.0/16 China Unicom Jiangsu Province Network | ||||||
| NS | ns3.content4ads.com ⚠️ Not in parent delegation | ||||||
| A | 220.181.33.31🇨🇳 CHINA-1220.181.32.0/19 China Telecom Beijing Co. Ltd. | ||||||
| NS | ns4.baidu.com ⚠️ Not in zone NS records | ||||||
| A | 14.215.178.80🇨🇳 CHINANET-BACKBONE14.208.0.0/12 China Telecom Network | ||||||
| A | 111.45.3.226🇨🇳 CHINAMOBILE-CN111.45.3.0/24 CMI (Customer Route) | ||||||
| NS | ns4.content4ads.com ⚠️ Not in parent delegation | ||||||
| A | 61.135.165.235🇨🇳 CHINA169-BJ61.135.160.0/21 CMI (Customer Route) | ||||||
| SOA | content4ads.comroot@content4ads.com 2010-04-21 #37 | ||||||
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=1771291435 | ||||||
NS for
content4ads.com |
Subdomains
Same first word
content4ads.com |
DNS History
9 records (9 active, 0 former)
●NScontent4ads.com2015-08-23 → 2026-03-22 · 2 obs
● 2026-03-22 11:09:20
●NSns1.baidu.com2026-02-17 → 2026-03-22 · 3 obs
● 2026-02-17 07:50:04
● 2026-03-22 11:09:20
●NSns1.content4ads.com2015-08-23 → 2026-03-22 · 2 obs
● 2026-03-22 11:09:20
●NSns2.baidu.com2026-02-17 → 2026-03-22 · 3 obs
● 2026-02-17 07:50:04
● 2026-03-22 11:09:20
●NSns2.content4ads.com2015-08-23 → 2026-03-22 · 2 obs
● 2026-03-22 11:09:20
●NSns3.baidu.com2026-02-17 → 2026-03-22 · 3 obs
● 2026-02-17 07:50:04
● 2026-03-22 11:09:20
●NSns3.content4ads.com2015-08-23 → 2026-03-22 · 2 obs
● 2026-03-22 11:09:20
●NSns4.baidu.com2026-02-17 → 2026-03-22 · 3 obs
● 2026-02-17 07:50:04
● 2026-03-22 11:09:20
●NSns4.content4ads.com2015-08-23 → 2026-03-22 · 2 obs
● 2026-03-22 11:09:20
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | d.gtld-servers.net, f.gtld-servers.net, l.gtld-servers.net, j.gtld-servers.net... | - |
| content4ads.com | ns2.baidu.com, ns3.baidu.com, ns4.baidu.com, ns1.baidu.com | 8 records |
✅ Authoritative Response
Server: 153.3.238.93
NS records: ns2.baidu.com, ns3.baidu.com, ns4.baidu.com, ns1.baidu.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for content4ads.com (unsigned zone)
⏱️ Timing
Total: 3888ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | ns2.content4ads.com, ns4.content4ads.com... |
| SOA | 1 | content4ads.com root.content4ads.com |
📌 Glue Records Collected
Total: 8
Out-of-bailiwick: 8 (ns2.baidu.com, ns2.baidu.com, ns3.baidu.com...)
Analysis
Hierarchy
content4ads.com is a parent of ns2.content4ads.com, ns4.content4ads.com, ns1.content4ads.com and ns3.content4ads.com.
Name Server Role
content4ads.com serves as a name server for content4ads.com.
Together with content4ads.com, ns1.baidu.com, ns2.baidu.com and ns3.baidu.com are commonly used as name servers.
Name Servers
content4ads.com is delegated to nine name servers: content4ads.com, ns1.baidu.com, ns2.baidu.com, ns3.baidu.com, ns4.baidu.com, ns1.content4ads.com, ns2.content4ads.com, ns3.content4ads.com and ns4.content4ads.com.
content4ads.com partially shares name servers with other domains; examples include duxiaomai.net, sanguows.com, qxllq.com, mipengine.org and bduapp.com.
These name servers are commonly paired with dns.baidu.com, ns1.baidu.hk, ns2.baidu.hk, dns.baidu.com.cn, ns5.baidu.com, ns8.baidu.com and ns7.baidu.com.
Host names with two IP numbers:
ns1.baidu.com points to: 240e:bf:b801:1002:0:ff:b024:26de and 110.242.68.134
ns2.baidu.com points to: 240e:940:603:4:0:ff:b01b:589a and 220.181.33.31
ns3.baidu.com points to: 36.155.132.78 and 153.3.238.93
ns4.baidu.com points to: 14.215.178.80 and 111.45.3.226
ns1.content4ads.com points to: 2400:da00:400:ffff:1:1:1:1 and 110.242.68.134
Host names with one IP number:
ns2.content4ads.com points to: 61.135.165.235
ns3.content4ads.com points to: 220.181.33.31
ns4.content4ads.com points to: 61.135.165.235
Host names that point to 110.242.68.134: ns1.baidu.com and ns1.content4ads.com
Host names that point to 220.181.33.31: ns2.baidu.com and ns3.content4ads.com
Host names that point to 61.135.165.235: ns2.content4ads.com and ns4.content4ads.com