fb.security - robtex.com
fb.security
| DNSSEC | ⚠️ Not signed | ||||||
| NS | a.ns.facebook.com ⭐ | ||||||
| A | 2a03:2880:f0fc:c:face:b00c:0:35🇺🇸 Facebook2a03:2880:f0fc::/48 | ||||||
| PTR | a.ns.facebook.com | ||||||
| A | 129.134.30.12🇺🇸 Facebook129.134.30.0/24 , Inc. | ||||||
| PTR | a.ns.facebook.com | ||||||
| NS | b.ns.facebook.com | ||||||
| A | 2a03:2880:f0fd:c:face:b00c:0:35🇺🇸 Facebook2a03:2880:f0fd::/48 | ||||||
| PTR | b.ns.facebook.com | ||||||
| A | 129.134.31.12🇺🇸 Facebook129.134.31.0/24 , Inc. | ||||||
| PTR | b.ns.facebook.com | ||||||
| NS | c.ns.facebook.com | ||||||
| A | 2a03:2880:f1fc:c:face:b00c:0:35🇺🇸 Facebook2a03:2880:f1fc::/48 | ||||||
| PTR | c.ns.facebook.com | ||||||
| A | 185.89.218.12🇮🇱 Facebook185.89.218.0/24 | ||||||
| PTR | c.ns.facebook.com | ||||||
| NS | d.ns.facebook.com | ||||||
| A | 2a03:2880:f1fd:c:face:b00c:0:35🇺🇸 Facebook2a03:2880:f1fd::/48 | ||||||
| PTR | d.ns.facebook.com | ||||||
| A | 185.89.219.12🇮🇱 Facebook185.89.219.0/24 | ||||||
| PTR | d.ns.facebook.com | ||||||
| TXT | v=spf1 a ~all | ||||||
| SOA | a.ns.facebook.comdns@facebook.com serial=4207849484 | ||||||
security
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | ns0.centralnic.net ⭐ | ||||||
| NS | a.nic.security | ||||||
| NS | b.nic.security | ||||||
| NS | e.nic.security | ||||||
| NS | f.nic.security | ||||||
| SOA | ns0.centralnic.nethostmaster@centralnic.net serial=225467 | ||||||
Same first word
Similar names
DNS History
4 records (4 active, 0 former)
●NSa.ns.facebook.com2026-03-12 → 2026-03-16 · 2 obs
● 2026-03-16 00:02:48
●NSb.ns.facebook.com2026-03-12 → 2026-03-16 · 2 obs
● 2026-03-16 00:02:48
●NSc.ns.facebook.com2026-03-12 → 2026-03-16 · 2 obs
● 2026-03-16 00:02:48
●NSd.ns.facebook.com2026-03-12 → 2026-03-16 · 2 obs
● 2026-03-16 00:02:48
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| security | a.nic.security, b.nic.security, e.nic.security, f.nic.security | 8 records |
| fb.security | a.ns.facebook.com, c.ns.facebook.com, b.ns.facebook.com, d.ns.facebook.com | - |
✅ Authoritative Response
Server: 185.89.219.12
NS records: a.ns.facebook.com, c.ns.facebook.com, b.ns.facebook.com, d.ns.facebook.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for fb.security (unsigned zone)
⏱️ Timing
Total: 499ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| NS | 4 | a.ns.facebook.com, b.ns.facebook.com... |
| TXT | 1 | v=spf1 a ~all |
| SOA | 1 | a.ns.facebook.com dns.facebook.com |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (a.nic.security, a.nic.security, b.nic.security...)
Analysis
Name Servers
fb.security's delegation is handled by four name servers: a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com and d.ns.facebook.com.
fb.security partially shares name servers with other domains; examples include 148.70.163.in-addr.arpa, instagramsupport.net, atlasin-stream.com, freebasicservices.com and facebook.ae.
Host names with two IPs:
a.ns.facebook.com points to 2a03:2880:f0fc:c:face:b00c:0:35 and 129.134.30.12
b.ns.facebook.com points to 2a03:2880:f0fd:c:face:b00c:0:35 and 129.134.31.12
c.ns.facebook.com points to 2a03:2880:f1fc:c:face:b00c:0:35 and 185.89.218.12
d.ns.facebook.com points to 2a03:2880:f1fd:c:face:b00c:0:35 and 185.89.219.12