facebook.bio - robtex.com
facebook.bio
| DNSSEC | ⚠️ Not signed | ||||||
| A | 2a03:2880:f003:c07:face:b00c:0:2🇺🇸 Facebook2a03:2880:f003::/48 , Inc. | ||||||
| PTR | edge-star6-shv-01-iad3.facebook.com | ||||||
| A | 31.13.66.4🇺🇸 Facebook31.13.66.0/24 , Inc. | ||||||
| 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 -all | ||||||
| HTTPS | HTTP/2, HTTP/3 | ||||||
| HTTPS | HTTP/2, HTTP/3 | ||||||
| SOA | a.ns.facebook.comdns@facebook.com serial=4207849484 | ||||||
bio
| DNSSEC | 🔒 Signed (DS record present) | ||||||
| NS | a0.nic.bio ⭐ | ||||||
| NS | a2.nic.bio | ||||||
| NS | b0.nic.bio | ||||||
| NS | c0.nic.bio | ||||||
| SOA | a0.nic.biohostmaster@donuts.email serial=1772378438 | ||||||
Same first word
Similar names
DNS History
6 records (6 active, 0 former)
●NSa.ns.facebook.com2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 15:55:46
●NSb.ns.facebook.com2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 15:55:46
●NSc.ns.facebook.com2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 15:55:46
●NSd.ns.facebook.com2026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 15:55:46
●A2a03:2880:f003:c07:face:b00c:0:22026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 15:55:46
●A31.13.66.42026-03-01 → 2026-03-01 · 2 obs
● 2026-03-01 15:55:46
🔍 DNS Trace
📋 Delegation Chain
| Zone | Nameservers | Glue |
|---|---|---|
| bio | c0.nic.bio, a2.nic.bio, b0.nic.bio, a0.nic.bio | 8 records |
| facebook.bio | d.ns.facebook.com, a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com | - |
✅ Authoritative Response
Server: 185.89.218.12
NS records: d.ns.facebook.com, a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com
🔒 DNSSEC Status
⚠️ Insecure (no DNSSEC)
No DS record for facebook.bio (unsigned zone)
⏱️ Timing
Total: 705ms | Queries: -
📄 Records
| Type | Count | Sample Data |
|---|---|---|
| A | 1 | 31.13.66.4 |
| AAAA | 1 | 2a03:2880:f003:c07:face:b00c:0:2 |
| NS | 4 | b.ns.facebook.com, a.ns.facebook.com... |
| TXT | 1 | v=spf1 -all |
| HTTPS | 2 | {"priority":2,"target":"star.fallback.c1, {"priority":1,"target":".","alpn":["h2", |
| SOA | 1 | a.ns.facebook.com dns.facebook.com |
📌 Glue Records Collected
Total: 8
In-bailiwick: 8 (c0.nic.bio, c0.nic.bio, a2.nic.bio...)
Analysis
IP Addresses
facebook.bio points to two IP numbers: 2a03:2880:f003:c07:face:b00c:0:2 and 31.13.66.4.
Other host names such as facebookdevelopers.com, facebookclothes.com, atlasrichmedia.co.uk, fmcebook.com and instagram.osaka share IPs with facebook.bio.
Name Servers
facebook.bio is delegated to four name servers: a.ns.facebook.com, b.ns.facebook.com, c.ns.facebook.com and d.ns.facebook.com.
facebook.bio at least partially shares name servers with other domains, for example oglint.org, faxehook.com, instagram.review, instagify.com and facebookfeaturefilms.org.
Host names with two IP numbers:
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