app4business.com - robtex.com
app4business.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=1778745626 | ||||||
Subdomains
www.app4business.com |
Same first word
DNS History
14 records (7 active, 7 former)
○NSns1.namebrightdns.com2015-12-15 → 2016-04-03 · 4 obs
● 2016-04-03 01:10:38
○ 2016-09-14 06:14:42
○ 2026-05-14 08:24:12
○NSns2.namebrightdns.com2015-12-15 → 2016-04-03 · 4 obs
● 2016-04-03 01:10:38
○ 2016-09-14 06:14:42
○ 2026-05-14 08:24:12
●NSnsa7.schlundtech.de2016-09-14 → 2026-05-14 · 3 obs
● 2016-09-14 06:14:42
● 2026-05-14 08:24:12
●NSnsb7.schlundtech.de2016-09-14 → 2026-05-14 · 3 obs
● 2016-09-14 06:14:42
● 2026-05-14 08:24:12
●NSnsc7.schlundtech.de2016-09-14 → 2026-05-14 · 3 obs
● 2016-09-14 06:14:42
● 2026-05-14 08:24:12
●NSnsd7.schlundtech.de2016-09-14 → 2026-05-14 · 3 obs
● 2016-09-14 06:14:42
● 2026-05-14 08:24:12
●MXapp4business-com.mail.protection.outlook.com2016-09-14 → 2026-05-14 · 3 obs
● 2016-09-14 06:14:42
● 2026-05-14 08:24:12
○MXmail1.namebrightmail.com2015-12-15 → 2016-04-03 · 4 obs
● 2016-04-03 01:10:38
○ 2016-09-14 06:14:42
○ 2026-05-14 08:24:12
○MXmail2.namebrightmail.com2015-12-15 → 2016-04-03 · 4 obs
● 2016-04-03 01:10:38
○ 2016-09-14 06:14:42
○ 2026-05-14 08:24:12
●A35.71.142.772026-05-14 → 2026-05-14 · 2 obs
● 2026-05-14 08:24:12
●A52.223.52.22026-05-14 → 2026-05-14 · 2 obs
● 2026-05-14 08:24:12
○A54.175.122.202015-12-15 → 2016-04-03 · 4 obs
● 2016-04-03 01:10:38
○ 2016-09-14 06:14:42
○ 2026-05-14 08:24:12
○A81.169.220.2532016-09-14 → 2016-09-14 · 4 obs
● 2016-09-14 06:14:42
○ 2017-04-06 07:13:18
○ 2026-05-14 08:24:12
○A83.169.10.392017-04-06 → 2017-04-06 · 3 obs
● 2017-04-06 07:13:18
○ 2026-05-14 08:24:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | e.gtld-servers.net, l.gtld-servers.net, d.gtld-servers.net, b.gtld-servers.net... | - |
| app4business.com | nsa7.schlundtech.de, nsb7.schlundtech.de, nsc7.schlundtech.de, nsd7.schlundtech.de | - |
✅ Authoritative Response
Server:185.132.35.227
NS records: nsa7.schlundtech.de, nsb7.schlundtech.de, nsc7.schlundtech.de, nsd7.schlundtech.de
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for app4business.com (unsigned zone)
⏱️ Timing
Total: 858ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 2 | 35.71.142.77, 52.223.52.2 |
| NS | 4 | nsa7.schlundtech.de, nsd7.schlundtech.de... |
| MX | 1 | app4business-com.mail.protection.outlook |
| TXT | 2 | v=spf1 include:spf.protection.outlook.co, MS=ms10317397 |
| SOA | 1 | nsa7.schlundtech.de y\.honeker.andagon.c |
Analysis
Hierarchy
app4business.com is the parent of www.app4business.com.
IP Addresses
app4business.com resolves to two IP numbers: 35.71.142.77 and 52.223.52.2.
other host names including invictamed.com, chrisfortunatodesign.com, leizagato.com, braza.lt and fecif.eu share IP numbers with app4business.com.
Name Servers
app4business.com is delegated to four name servers: nsa7.schlundtech.de, nsb7.schlundtech.de, nsc7.schlundtech.de and nsd7.schlundtech.de.
app4business.com at least partially shares name servers with other domains, for instance inprints.de, songdatabase.de, kromi-tool-center.de, aktobis.de and dxblog.de.
Host names with two IP numbers:
nsa7.schlundtech.de points to 2607:f1c0:fe:53:185:132:34:227 and 185.132.34.227; nsb7.schlundtech.de points to 2607:f1c0:fe:53:185:132:35:227 and 185.132.35.227; nsc7.schlundtech.de points to 2001:8d8:fe:53:217:160:80:227 and 217.160.80.227; nsd7.schlundtech.de points to 2001:8d8:fe:53:217:160:81:227 and 217.160.81.227.
Mail Servers
app4business.com is handled by a single mail server, app4business-com.mail.protection.outlook.com.
Host app4business-com.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca04::a, 2a01:111:f403:ca04::d, 2a01:111:f403:ca09::4, 2a01:111:f403:ca09::9, 52.101.68.32, 52.101.68.39, 52.101.73.2 and 52.101.73.11.