An explainer of DNS resource records: the four fields (host, type, TTL, data) every record
An explainer of DNS resource records: the four fields (host, type, TTL, data) every record uses, what the A, AAAA, CNAME, and MX record types do, and how multiple MX records with priority values provide email failover — including the trailing-dot FQDN gotcha.
$0.01
price
—
calls / 30d
—
unique payers
2026-09-21
updated
Provider
Saylor Innovations Knowledge Base · verified
For agents
- Capabilities
- CNAME Domain Parking & DNS Resource Records — a 4-minute technical guide
- License
- LicenseRef-Saylor-Agent-Use-1.0
Payment (x402 accepts[])
[
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"asset": "EPjFWdd5AufqSSqeM2qN1xzybapC8G4wEGGkZwyTDt1v",
"amount": "10000",
"amountUsd": 0.01,
"maxTimeoutSeconds": 120
},
{
"scheme": "exact",
"network": "solana:5eykt4UsFv8P8NJdTREpY1vzqKqZKvdp",
"payTo": "7LSjfrJf8fNsB8VA9u7N3WEn25smQLpob3SvyUvXacy7",
"asset": "Es9vMFrzaCERmJfrF4H2FYD4KCoNkY11McCe8BenwNYB",
"amount": "10000",
"amountUsd": 0.01,
"maxTimeoutSeconds": 120
},
{
"scheme": "exact",
"network": "eip155:8453",
"payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
"asset": "0x833589fCD6eDb6E08f4c7C32D4f71b54bdA02913",
"amount": "10000",
"amountUsd": 0.01,
"maxTimeoutSeconds": 120
},
{
"scheme": "exact",
"network": "eip155:137",
"payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
"asset": "0x3c499c542cEF5E3811e1192ce70d8cC03d5c3359",
"amount": "10000",
"amountUsd": 0.01,
"maxTimeoutSeconds": 120
},
{
"scheme": "exact",
"network": "eip155:42161",
"payTo": "0xf8A376eBF123D7252cd7b66bcD77A727a4def22f",
"asset": "0xaf88d065e77c8cC2239327C5EDb3A432268e5831",
"amount": "10000",
"amountUsd": 0.01,
"maxTimeoutSeconds": 120
}
]Use it
curl
curl "https://saylorinnovations.com/api/kb?id=cname-domain-parking-dns-resource-records" # -> 402 Payment Required, accepts[] lists how to pay # retry with a PAYMENT-SIGNATURE (or PAYMENT header) once paid
JavaScript
const res = await fetch("https://saylorinnovations.com/api/kb?id=cname-domain-parking-dns-resource-records");
if (res.status === 402) {
const { accepts } = await res.json();
// pay one of accepts[] via an x402 client, then retry with the payment header
}Python
import httpx
res = httpx.get("https://saylorinnovations.com/api/kb?id=cname-domain-parking-dns-resource-records")
if res.status_code == 402:
accepts = res.json()["accepts"]
# pay one of accepts[] via an x402 client, then retry with the payment headerMachine-readable
Everything on this page is also available as clean JSON at /resources/cname-domain-parking-dns-resource-records.json, and this resource appears in /discovery/resources and /discovery/search.