booleanoverflow.com - robtex.com
booleanoverflow.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=1774821677 | ||||||
Same first word
booleanoverflow.com |
DNS History
8 records (8 active, 0 former)
●NSns-us.1and1-dns.com2017-01-08 → 2026-03-29 · 2 obs
● 2026-03-29 22:20:18
●NSns-us.1and1-dns.de2017-01-08 → 2026-03-29 · 2 obs
● 2026-03-29 22:20:18
●NSns-us.1and1-dns.org2017-01-08 → 2026-03-29 · 2 obs
● 2026-03-29 22:20:18
●NSns-us.1and1-dns.us2017-01-08 → 2026-03-29 · 2 obs
● 2026-03-29 22:20:18
●A216.250.120.1332017-01-08 → 2026-03-29 · 2 obs
● 2026-03-29 22:20:18
●A2607:f1c0:1000:2095:3804:4272:1307:d0112017-01-08 → 2026-03-29 · 2 obs
● 2026-03-29 22:20:18
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| com | a.gtld-servers.net, b.gtld-servers.net, c.gtld-servers.net, d.gtld-servers.net... | - |
| booleanoverflow.com | ns-us.1and1-dns.us, ns-us.1and1-dns.de, ns-us.1and1-dns.org, ns-us.1and1-dns.com | 2 records |
✅ Authoritative Response
Server:217.160.81.2
NS records: ns-us.1and1-dns.us, ns-us.1and1-dns.de, ns-us.1and1-dns.org, ns-us.1and1-dns.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for booleanoverflow.com (unsigned zone)
⏱️ Timing
Total: 522ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 216.250.120.133 |
| AAAA | 1 | 2607:f1c0:1000:2095:3804:4272:1307:d011 |
| NS | 4 | ns-us.1and1-dns.com, ns-us.1and1-dns.org... |
| MX | 2 | mx00.1and1.com (pri: 10), mx01.1and1.com (pri: 10) |
| SOA | 1 | ns-us.1and1-dns.com hostmaster.1and1.com |
📌 Glue Records Collected
Total: 2
Out-of-bailiwick: 2 (ns-us.1and1-dns.com, ns-us.1and1-dns.com)
Analysis
IP Addresses
booleanoverflow.com points to two IP numbers: 2607:f1c0:1000:2095:3804:4272:1307:d011 and 216.250.120.133.
Other host names such as marcum.co, usfbullspen.com, landzflow.com, cartastarot.info and drngr.com share IPs with booleanoverflow.com.
Name Servers
booleanoverflow.com is delegated to four name servers: ns-us.1and1-dns.com, ns-us.1and1-dns.de, ns-us.1and1-dns.org and ns-us.1and1-dns.us.
booleanoverflow.com at least partially shares name servers with other domains, for instance vance.email, aiccusa.org, narola.online, schoolofvisualarts.life and controlestatica.com.
these name servers are commonly used with ns51.1and1.com, ns52.1and1.com, ns57.1and1.com and ns58.1and1.com.
Host names with two IP numbers: ns-us.1and1-dns.com points to 2001:8d8:fe:53:0:d9a0:5202:100 and 217.160.82.2; ns-us.1and1-dns.de points to 2001:8d8:fe:53:0:d9a0:5002:100 and 217.160.80.2; ns-us.1and1-dns.org points to 2001:8d8:fe:53:0:d9a0:5302:100 and 217.160.83.2; ns-us.1and1-dns.us points to 2001:8d8:fe:53:0:d9a0:5102:100 and 217.160.81.2.
Mail Servers
booleanoverflow.com is handled by two mail servers: mx00.1and1.com and mx01.1and1.com.
The mail server setup for booleanoverflow.com matches that of other domains, for instance howtoincorporatemybusiness.com, indiraja.com, wholeheartpress.com, timtate.com and maltosefalcons.com.
booleanoverflow.com shares at least partially some mail servers with other domains, including pa-realestate.net, paradifamily.com, u15298996.onlinehome-server.com, kaboozs.com and perlygroup.com.
these mail servers are often used with aspmx.l.google.com, alt1.aspmx.l.google.com, alt2.aspmx.l.google.com, alt3.aspmx.l.google.com and alt4.aspmx.l.google.com.
Host names with a single IP:
mx00.1and1.com points to 74.208.5.3.
mx01.1and1.com points to 74.208.5.21.