TLD SLA Compliance Metrics
Spec 10No metrics available yet
Metrics will appear after probes start reporting data. Check back in about an hour.
Current Check Status
Reported by Any53 Probes| Type | AF | RTT | Last Check | Source | Details | Status | TSLAC |
|---|---|---|---|---|---|---|---|
DNS
|
v4 | 1.3ms | 33 days, 16 hours ago | local | NSID: u-ci-nominet1.uschi1. | OK | |
DNSSEC
|
v4 | 102ms | 33 days, 17 hours ago | local | Key: 23695 | OK | |
DNSSEC
|
v6 | 103ms | 33 days, 17 hours ago | local | Key: 23695 | OK | |
RDAP
|
v4 | 275ms | 33 days, 20 hours ago | local | TLS 1.3 | OK | |
RDAP
|
v6 | 284ms | 33 days, 20 hours ago | local | TLS 1.3 | OK |
RDAP HTTPS Timing
284ms total
DNS Lookup
0.20ms
TCP Connect
86ms
TLS Handshake
94ms
Time to First Byte
284ms
TLS 1.3 / TLS_AES_128_GCM_SHA256
Nameservers
8 IPs tested| Hostname | IP Address | AF | ASN | RPKI | Status |
|---|---|---|---|---|---|
dns1.nic.silk |
213.248.218.59 |
v4 | — | — | |
dns2.nic.silk |
103.49.82.59 |
v4 | — | — | |
dns3.nic.silk |
213.248.222.59 |
v4 | — | — | |
dns4.nic.silk |
43.230.50.59 |
v4 | — | — | |
dnsa.nic.silk |
156.154.100.3 |
v4 | AS12008 | ||
dnsb.nic.silk |
156.154.101.3 |
v4 | AS12008 | ||
dnsc.nic.silk |
156.154.102.3 |
v4 | AS12008 | ||
dnsd.nic.silk |
156.154.103.3 |
v4 | AS12008 |
Per ICANN Spec 10, we test all delegated nameserver IPs independently.
Test With Your Computer
DNS
dig @dns1.nic.silk silk. SOA +dnssec +nsid
Query SOA with DNSSEC validation and NSID
drill -D silk. SOA @dns1.nic.silk
Alternative using drill with DNSSEC trace
RDAP
curl -sS "https://rdap.nominet.uk/silk/domain/nic.silk" | jq .
Fetch RDAP JSON (positive lookup)
curl -I -sS "https://rdap.nominet.uk/silk/domain/nic.silk"
Headers only (check TLS, timing)
Open in Browser
View RDAP response directly
Registry Information
Active
TLD
.silk
Operator
Amazon Registry Services, Inc.
RDAP Server
https://rdap.nominet.uk/silk/
RDAP Client
ICANN SLA Requirements
Per ICANN Registry Agreement Specification 10:
DNS SLA
UDP RTT ≤ 500ms for 95% of queries.
Availability: 99% (max 432 min/month downtime).
RDAP SLA
RTT ≤ 4000ms for 95% of queries.
Availability: 98% (max 864 min/month downtime).
API Access
JSON APIAccess .silk compliance metrics programmatically via our REST API.
Quick Start
GET
/any53/api/v1/compliance/silk/
curl -H "X-API-Key: ${YOUR_API_KEY}" \
"https://www.any53.com/any53/api/v1/compliance/silk/"
Example Response
{
"tld": "silk",
"display_name": ".silk",
"operator": "Amazon Registry Services, Inc.",
"updated_at": "2026-01-31T12:00:00Z",
"dns": {
"availability_24h": 99.99,
"rtt_p50_ms": 12,
"rtt_p95_ms": 42,
"sla_threshold_ms": 500
},
"rdds": {
"protocol": "RDAP",
"availability_24h": 99.95,
"rtt_p50_ms": 180,
"rtt_p95_ms": 412,
"sla_threshold_ms": 4000
},
"servers": {
"rdap_url": "https://rdap.nominet.uk/silk/"
},
"spec10_compliant": true
}
Generate API Key
Get a free API key to start making requests. Provide an email to upgrade to the verified tier (600 requests/hour).
Save this key now! It cannot be retrieved later.
Tier:
Rate limit: /hour
Endpoints
| Endpoint | Description | Tier |
|---|---|---|
GET /compliance/ |
List all monitored TLDs | All |
GET /compliance/{tld}/ |
Current metrics for a TLD | All |
GET /compliance/{tld}/history/ |
Historical time-series data | Organization |
GET /compliance/{tld}/probes/ |
Per-probe breakdown | Organization |
POST /compliance/keys/ |
Generate a new API key | No auth |
Rate Limits
| Tier | Rate Limit | Features |
|---|---|---|
| Anonymous | 100/hour | Current snapshot, hourly aggregates |
| Verified | 600/hour | Current snapshot, hourly aggregates |
| Organization | 6000/hour | Historical data, per-minute resolution, per-probe breakdown |