b2b-challenges.com - robtex.com
b2b-challenges.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=1771291435 | ||||||
DNS History
11 records (7 active, 4 former)
●NSns1064.ui-dns.biz2019-12-18 → 2026-03-18 · 2 obs
● 2026-03-18 08:47:14
●NSns1094.ui-dns.org2019-12-18 → 2026-03-18 · 2 obs
● 2026-03-18 08:47:14
●NSns1115.ui-dns.com2019-12-18 → 2026-03-18 · 2 obs
● 2026-03-18 08:47:14
●MXb2bchallenges-com0i.mail.protection.outlook.com2026-03-18 → 2026-03-18 · 3 obs
● 2026-03-18 08:47:10
● 2026-03-18 08:47:14
○MXmx00.ionos.de2019-12-18 → 2019-12-18 · 3 obs
○ 2026-03-18 08:47:10
○ 2026-03-18 08:47:14
○MXmx01.ionos.de2019-12-18 → 2019-12-18 · 3 obs
○ 2026-03-18 08:47:10
○ 2026-03-18 08:47:14
●A2001:8d8:100f:f000::2002026-03-18 → 2026-03-18 · 3 obs
● 2026-03-18 08:47:10
● 2026-03-18 08:47:14
○A2001:8d8:100f:f000::28b2019-12-18 → 2019-12-18 · 3 obs
○ 2026-03-18 08:47:10
○ 2026-03-18 08:47:14
○A217.160.0.1302019-12-18 → 2019-12-18 · 3 obs
○ 2026-03-18 08:47:10
○ 2026-03-18 08:47:14
●A217.160.0.582026-03-18 → 2026-03-18 · 3 obs
● 2026-03-18 08:47:10
● 2026-03-18 08:47:14
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| b2b-challenges.com | ns1094.ui-dns.org, ns1036.ui-dns.de, ns1064.ui-dns.biz, ns1115.ui-dns.com | 2 records |
✅ Authoritative Response
Server: 217.160.83.94
NS records: ns1094.ui-dns.org, ns1036.ui-dns.de, ns1064.ui-dns.biz, ns1115.ui-dns.com
🔒 DNSSEC Status
🔐 Secure (DNSSEC validated)
Chain of trust verified from root to domain
⏱️ Timing
Total: 2299ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 217.160.0.58 |
| AAAA | 1 | 2001:8d8:100f:f000::200 |
| NS | 4 | ns1036.ui-dns.de, ns1094.ui-dns.org... |
| MX | 1 | b2bchallenges-com0i.mail.protection.outl |
| TXT | 3 | v=spf1 include:spf.protection.outlook.co, v=verifydomain MS=8050450... |
| SOA | 1 | ns1094.ui-dns.org hostmaster.1und1.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns1115.ui-dns.com, ns1115.ui-dns.com)
Analysis
IP Addresses
b2b-challenges.com resolves to two IPs: 2001:8d8:100f:f000::200 and 217.160.0.58.
other host names for instance qitek.net, fritzgin.org, brickselection.com, vollmer-transporte.eu and davicker.co.uk share IP numbers with b2b-challenges.com.
Name Servers
b2b-challenges.com is delegated to four name servers: ns1064.ui-dns.biz, ns1115.ui-dns.com, ns1036.ui-dns.de and ns1094.ui-dns.org.
b2b-challenges.com at least partially shares name servers with other domains, for instance kagdard.eu, albertsen.at, dollarumma.com, westgatecinema.co.uk and someo-literie.com.
These name servers are often used together with the name servers ns1094.ui-dns.biz, ns1094.ui-dns.com, ns1094.ui-dns.de, ns1064.ui-dns.com, ns1064.ui-dns.de, ns1064.ui-dns.org, ns1115.ui-dns.biz, ns1115.ui-dns.de, ns1115.ui-dns.org and ns1036.ui-dns.biz.
Host names with two IP numbers:
Host name ns1064.ui-dns.biz points to: 2001:8d8:fe:53:0:d9a0:5140:100 and 217.160.81.64.
Host name ns1115.ui-dns.com points to: 2001:8d8:fe:53:0:d9a0:5273:100 and 217.160.82.115.
Host name ns1036.ui-dns.de points to: 2001:8d8:fe:53:0:d9a0:5024:100 and 217.160.80.36.
Host name ns1094.ui-dns.org points to: 2001:8d8:fe:53:0:d9a0:535e:100 and 217.160.83.94.
Mail Servers
b2b-challenges.com is handled by a single mail server, b2bchallenges-com0i.mail.protection.outlook.com.
Host name b2bchallenges-com0i.mail.protection.outlook.com points to eight IP numbers: 2a01:111:f403:ca27::, 2a01:111:f403:ca2d::, 2a01:111:f403:ca2d::1, 2a01:111:f403:ca2d::2, 52.101.168.0, 52.101.170.0, 52.101.170.1 and 52.101.170.2.