sfdc.is - robtex.com
sfdc.is
| DNSSEC | ⚠️ Not signed | ||||||
| NS | dns1.p04.nsone.net ⭐ | ||||||
| A | 2620:4d:4000:6259:7:4:0:1🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48 | ||||||
| PTR | dns1.p04.nsone.net | ||||||
| A | 198.51.44.4🇺🇸 NSONE198.51.44.0/24 198.51.44.0 | ||||||
| PTR | dns1.p04.nsone.net | ||||||
| NS | dns2.p04.nsone.net | ||||||
| A | 2a00:edc0:6259:7:4::2🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2 | ||||||
| PTR | dns2.p04.nsone.net | ||||||
| A | 198.51.45.4🇺🇸 NSONE198.51.45.0/24 198.51.45.0 | ||||||
| PTR | dns2.p04.nsone.net | ||||||
| NS | dns3.p04.nsone.net | ||||||
| A | 2620:4d:4000:6259:7:4:0:3🇺🇸 NSONE2620:4d:4000::/48 2620:4D:4000::/48 | ||||||
| PTR | dns3.p04.nsone.net | ||||||
| A | 198.51.44.68🇺🇸 NSONE198.51.44.0/24 198.51.44.0 | ||||||
| PTR | dns3.p04.nsone.net | ||||||
| NS | dns4.p04.nsone.net | ||||||
| A | 2a00:edc0:6259:7:4::4🇺🇸 NSONE2a00:edc0:6259::/48 NS1-2 | ||||||
| PTR | dns4.p04.nsone.net | ||||||
| A | 198.51.45.68🇺🇸 NSONE198.51.45.0/24 198.51.45.0 | ||||||
| PTR | dns4.p04.nsone.net | ||||||
| SOA | dns1.p04.nsone.nethostmaster@nsone.net serial=1557602255 | ||||||
is
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a.nic.is ⭐ | ||||||
| NS | c.nic.is | ||||||
| NS | d.nic.is | ||||||
| NS | e.nic.is | ||||||
| NS | f.nic.is | ||||||
| SOA | a.nic.ishostmaster@isnic.is serial=1772040602 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSdns1.p04.nsone.net2026-03-16 → 2026-03-22 · 2 obs
● 2026-03-22 22:25:12
●NSdns2.p04.nsone.net2026-03-16 → 2026-03-22 · 2 obs
● 2026-03-22 22:25:12
●NSdns3.p04.nsone.net2026-03-16 → 2026-03-22 · 2 obs
● 2026-03-22 22:25:12
●NSdns4.p04.nsone.net2026-03-16 → 2026-03-22 · 2 obs
● 2026-03-22 22:25:12
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| is | a.nic.is, c.nic.is, d.nic.is, e.nic.is... | 10 records |
| sfdc.is | dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net | - |
✅ Authoritative Response
Server: 198.51.45.68
NS records: dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net, dns4.p04.nsone.net
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for sfdc.is (unsigned zone)
⏱️ Timing
Total: 765ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | dns1.p04.nsone.net, dns2.p04.nsone.net... |
| SOA | 1 | dns1.p04.nsone.net hostmaster.nsone.net |
📌 Glue Records Collected
Total: 10
In-bailiwick: 10 (a.nic.is, a.nic.is, c.nic.is...)
Analysis
Name Servers
sfdc.is is delegated to four name servers: dns1.p04.nsone.net, dns2.p04.nsone.net, dns3.p04.nsone.net and dns4.p04.nsone.net.
sfdc.is at least partially shares name servers with other domains, for instance redferrin.com, theusualgroup.com, mikaespinal.com, discoveryofdesign.com and quetru.com.
These name servers are commonly used with the following name servers: ns01.squarespacedns.com, ns02.squarespacedns.com, ns03.squarespacedns.com, ns04.squarespacedns.com, dns1.p01.nsone.net, dns2.p01.nsone.net, dns3.p01.nsone.net, dns4.p01.nsone.net, connect1.squarespacedns.com and connect2.squarespacedns.com.
Host names with two IP numbers:
dns1.p04.nsone.net points to 2620:4d:4000:6259:7:4:0:1 and 198.51.44.4; dns2.p04.nsone.net points to 2a00:edc0:6259:7:4::2 and 198.51.45.4; dns3.p04.nsone.net points to 2620:4d:4000:6259:7:4:0:3 and 198.51.44.68; dns4.p04.nsone.net points to 2a00:edc0:6259:7:4::4 and 198.51.45.68.