upstream.lu - robtex.com
upstream.lu
lu
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | 1.ns.lu ⭐ | ||||||
| NS | g.dns.lu | ||||||
| NS | i.dns.lu | ||||||
| NS | j.dns.lu | ||||||
| NS | k.dns.lu | ||||||
| NS | p.dns.lu | ||||||
| NS | r.ns.lu | ||||||
| TXT | Exported: 2026-09-14 11:01:01 | ||||||
| SOA | 1.ns.lunoc@restena.lu serial=1789376472 | ||||||
Same first word
Similar names
Previous names
Next names
DNS History
6 records (6 active, 0 former)
●NSns1.eurodns.com2026-08-28 → 2026-09-14 · 2 obs
● 2026-09-14 09:53:50
●NSns2.eurodns.com2026-08-28 → 2026-09-14 · 2 obs
● 2026-09-14 09:53:50
●NSns3.eurodns.com2026-08-28 → 2026-09-14 · 2 obs
● 2026-09-14 09:53:50
●NSns4.eurodns.com2026-08-28 → 2026-09-14 · 2 obs
● 2026-09-14 09:53:50
●MXsmtp.google.com2026-08-28 → 2026-09-14 · 2 obs
● 2026-09-14 09:53:50
●A76.76.21.212026-08-28 → 2026-09-14 · 2 obs
● 2026-09-14 09:53:50
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| lu | 1.ns.lu, g.dns.lu, i.dns.lu, j.dns.lu... | 14 records |
| upstream.lu | ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com, ns4.eurodns.com | - |
✅ Authoritative Response
Server:199.167.66.107
NS records: ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com, ns4.eurodns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for upstream.lu (unsigned zone)
⏱️ Timing
Total: 704ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 76.76.21.21 |
| NS | 4 | ns1.eurodns.com, ns2.eurodns.com... |
| MX | 1 | smtp.google.com (pri: 1) |
| TXT | 2 | google-site-verification=zVNmdMusA7QeBQZ, v=spf1 include:_spf.google.com ~all |
| SOA | 1 | ns1.eurodns.com hostmaster.eurodns.com |
📌 Glue Records Collected
Total: 14
In-bailiwick: 14 (1.ns.lu, g.dns.lu, i.dns.lu...)
Analysis
IP Addresses
upstream.lu resolves to just one IP address, 76.76.21.21.
Two other host names, along with lusob92.cn, ddlyxx.com and kowusi.cn, also share IP numbers with upstream.lu.
Name Servers
The NS records for upstream.lu point to four name servers: ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and ns4.eurodns.com.
The name servers of upstream.lu overlap at least partially with those of other domains — among them all-stars.es, dawood.eu, bedifol.de and two more.
Each of the four hosts ns1.eurodns.com, ns2.eurodns.com, ns3.eurodns.com and ns4.eurodns.com has two IP addresses. ns1.eurodns.com points to 199.167.66.107 and 2610:1c8:b002::107. ns2.eurodns.com points to 104.37.178.107 and 2610:1c8:b001::107. ns3.eurodns.com points to 199.167.66.108 and 2610:1c8:b002::108. ns4.eurodns.com points to 104.37.178.108 and 2610:1c8:b001::108.
Mail Servers
The sole mail server for upstream.lu is smtp.google.com.
Among the domains sharing a mail server setup with upstream.lu are aure25.gal, simplesinovacao.com, ppln.pe and two others.
There is at least a partial MX overlap between upstream.lu and other domains, including monocolocountry.mx, dropdinkdrive.com, tigerly.de and two others.
With 9 IP addresses total, smtp.google.com resolves to 64.233.180.26, 172.253.139.27, 192.178.155.26 and 6 others.