content-optimizer.com - robtex.com
content-optimizer.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=1786184194 | ||||||
Same first word
content-optimizer.de |
content-optimizer.com |
DNS History
10 records (7 active, 3 former)
○NSns9.schlundtech.de2015-06-12 → 2016-04-12 · 4 obs
● 2016-04-12 23:09:56
○ 2017-03-18 15:42:34
○ 2026-08-08 10:39:14
●NSnsa8.schlundtech.de2015-06-12 → 2026-08-08 · 2 obs
● 2026-08-08 10:39:14
●NSnsb8.schlundtech.de2015-06-12 → 2026-08-08 · 2 obs
● 2026-08-08 10:39:14
●NSnsc8.schlundtech.de2015-06-12 → 2026-08-08 · 2 obs
● 2026-08-08 10:39:14
●NSnsd8.schlundtech.de2015-06-12 → 2026-08-08 · 2 obs
● 2026-08-08 10:39:14
●MXcontentoptimizer-com01i.mail.protection.outlook.com2026-02-19 → 2026-08-08 · 2 obs
● 2026-08-08 10:39:14
●A142.132.249.292026-02-19 → 2026-08-08 · 3 obs
● 2026-02-19 00:05:46
● 2026-08-08 10:39:14
●A2a01:4f8:262:3d9a::22026-02-19 → 2026-08-08 · 3 obs
● 2026-02-19 00:05:46
● 2026-08-08 10:39:14
○A83.169.4.812015-06-12 → 2016-04-12 · 4 obs
● 2016-04-12 23:09:56
○ 2017-03-18 15:42:34
○ 2026-08-08 10:39:14
○A91.250.103.602017-03-18 → 2017-03-18 · 4 obs
● 2017-03-18 15:42:34
○ 2026-02-19 00:05:46
○ 2026-08-08 10:39:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| content-optimizer.com | nsa8.schlundtech.de, nsb8.schlundtech.de, nsc8.schlundtech.de, nsd8.schlundtech.de | - |
✅ Authoritative Response
Server:217.160.80.227
NS records: nsa8.schlundtech.de, nsb8.schlundtech.de, nsc8.schlundtech.de, nsd8.schlundtech.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for content-optimizer.com (unsigned zone)
⏱️ Timing
Total: 1629ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 142.132.249.29 |
| AAAA | 1 | 2a01:4f8:262:3d9a::2 |
| NS | 4 | nsb8.schlundtech.de, nsd8.schlundtech.de... |
| MX | 1 | contentoptimizer-com01i.mail.protection. |
| TXT | 2 | MS=ms99866181, v=spf1 include:spf.protection.outlook.co |
| SOA | 1 | nsa8.schlundtech.de domains.content-opti |
Analysis
IP Addresses
content-optimizer.com has two IP addresses: 142.132.249.29 and 2a01:4f8:262:3d9a::2
belca.de, cpgn.de, mail.content-optimizer.de.cpgn.de and two other host names share IP numbers with content-optimizer.com.
Name Servers
The authoritative name servers for content-optimizer.com are nsa8.schlundtech.de, nsb8.schlundtech.de, nsc8.schlundtech.de and nsd8.schlundtech.de.
The name servers of content-optimizer.com overlap at least partially with those of other domains — among them nero-networks.de, popakademie.eu, germanwineprofessional.com and two more.
These name servers commonly appear in combination with the name servers rweb05.rackbutler.de.
Each of the four hosts nsa8.schlundtech.de, nsb8.schlundtech.de, nsc8.schlundtech.de and nsd8.schlundtech.de has two IP addresses. nsa8.schlundtech.de points to 185.132.34.227 and 2607:f1c0:fe:53:185:132:34:227. nsb8.schlundtech.de points to 185.132.35.227 and 2607:f1c0:fe:53:185:132:35:227. nsc8.schlundtech.de points to 217.160.80.227 and 2001:8d8:fe:53:217:160:80:227. nsd8.schlundtech.de points to 217.160.81.227 and 2001:8d8:fe:53:217:160:81:227.
Mail Servers
Mail for content-optimizer.com is handled by a single mail server, contentoptimizer-com01i.mail.protection.outlook.com.
contentoptimizer-com01i.mail.protection.outlook.com resolves to 8 IP addresses — 52.101.168.0, 52.101.170.0, 52.101.170.1 and 5 others.