Total Records
13
Response Time
29ms
DNSSEC
Disabled
DNS Provider
Unknown
Address Records
IP addresses the domain points to
| Type | Name | Value | TTL |
|---|---|---|---|
| A | fbcdn.net | 57.145.2.1 🇮🇪 IE
AS32934 FACEBOOK - Facebook, Inc., US | 41s |
| AAAA | fbcdn.net | 2a03:2880:f381:1:face:b00c:0:25de | 1m |
Name Records
Nameservers and aliases
| Type | Name | Value | TTL |
|---|---|---|---|
| NS | fbcdn.net | b.ns.facebook.com. | 2d |
| NS | fbcdn.net | d.ns.facebook.com. | 2d |
| NS | fbcdn.net | c.ns.facebook.com. | 2d |
| NS | fbcdn.net | a.ns.facebook.com. | 2d |
| SOA | fbcdn.net | a.ns.facebook.com. dns.facebook.com. 4207849484 14400 1800 604800 300 | 1h |
Text & Verification
SPF, DKIM, DMARC, and verification
| Type | Name | Value | TTL |
|---|---|---|---|
| TXT | _dmarc.fbcdn.net | "v=DMARC1; p=none; sp=none; rua=mailto:a@dmarc.facebookmail.com" | 2h |
| TXT | fbcdn.net | "google-site-verification=fK7K3F-hT-Pre47WNaVLRyk-_nC0Kc7K-IzagA5gPEw" | 2h |
| TXT | fbcdn.net | "v=spf1 a ~all" | 2h |
Service Discovery
Service endpoints and bindings
| Type | Name | Value | TTL |
|---|---|---|---|
| HTTPS | fbcdn.net | \# 50 00 02 09 73 74 61 72 2d 6d 69 6e 69 08 66 61 6c 6c 62 61 63 6b 04 63 31 30 72 08 66 61 63 65 62 6f 6f 6b 03 63 6f 6d 00 00 01 00 06 02 68 32 02 68 33 | 37m |
| HTTPS | fbcdn.net | \# 13 00 01 00 00 01 00 06 02 68 32 02 68 33 | 37m |
Security & Certificates
DNSSEC, CA restrictions, and keys
| Type | Name | Value | TTL |
|---|---|---|---|
| CAA | fbcdn.net | \# 93 00 05 69 73 73 75 65 64 69 67 69 63 65 72 74 2e 63 6f 6d 3b 20 61 63 63 6f 75 6e 74 3d 32 37 31 62 30 62 65 64 61 30 37 37 31 64 30 30 36 61 61 33 61 36 63 31 31 62 30 35 31 38 37 64 34 35 36 64 36 63 32 33 39 62 34 36 63 62 35 32 34 31 31 39 36 30 39 35 62 30 39 63 39 32 61 66 | 1h |
Queried 6/14/2026, 11:00:53 PM · 29ms
REST API
Integrate DNS lookups into your applications — query all record types programmatically.
curl -X GET "https://api.requestguard.com/api/v1/dns/lookup?domain=fbcdn.net" \
-H "Authorization: Bearer YOUR_API_KEY" \
-H "Accept: application/json"{
"success": true,
"data": {
"domain": "fbcdn.net",
"records": [
{
"type": "A",
"name": "fbcdn.net",
"value": "57.145.2.1",
"ttl": 41,
"geo": {
"ip": "57.145.2.1",
"asn": 32934,
"country": "IE",
"asnName": "FACEBOOK - Facebook, Inc., US"
}
},
{
"type": "AAAA",
"name": "fbcdn.net",
"value": "2a03:2880:f381:1:face:b00c:0:25de",
"ttl": 60,
"geo": {
"ip": "2a03:2880:f381:1:face:b00c:0:25de"
}
},
{
"type": "NS",
"name": "fbcdn.net",
"value": "b.ns.facebook.com.",
"ttl": 172800
}
],
"queryTimeMs": 29
}
}