TLD SLA Compliance Metrics
Spec 10DNS
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | 100% | 100% | 34ms | 241ms | 110 | |
| 7d | 100% | 100% | 36ms | 289ms | 1940 | |
| 30d | 94.34% | 94.34% | 40ms | 293ms | 2548 |
DNSSEC Validation Metrics
Registry Agreement Spec 6DNSSEC is required by the Registry Agreement (Specification 6) but is not part of the Spec 10 SLA. We monitor DNSSEC validation independently.
| Period | Validation Rate | RTT p50 | RTT p95 | Checks | Status |
|---|---|---|---|---|---|
| 24h | 100% | 19ms | 19ms | 12 | |
| 7d | 99.54% | 19ms | 61ms | 218 | |
| 30d | 98.34% | 53ms | 151ms | 302 |
Unlike Spec 10 services, DNSSEC has no formal availability SLA. Thresholds shown are operational guidelines.
Current Check Status
Reported by Any53 Probes| Type | AF | RTT | Last Check | Source | Details | Status | TSLAC |
|---|---|---|---|---|---|---|---|
DNS
|
v4 | 48ms | 1 hour, 36 minutes ago | local | — | OK | |
DNS
|
v6 | 103ms | 1 hour, 36 minutes ago | local | — | OK | |
DNSSEC
|
v4 | 19ms | 1 hour, 52 minutes ago | local | Key: 3991 | OK | |
DNSSEC
|
v6 | 19ms | 1 hour, 52 minutes ago | local | Key: 3991 | OK |
Nameservers
10 IPs tested| Hostname | IP Address | AF | Status |
|---|---|---|---|
h.dns.cn |
125.208.32.1 |
v4 | |
h.dns.cn |
2001:dc7:fffe::1 |
v6 | |
i.dns.cn |
125.208.33.1 |
v4 | |
i.dns.cn |
2001:dc7:ffff::1 |
v6 | |
j.dns.cn |
125.208.34.1 |
v4 | |
j.dns.cn |
2001:dc7:fffd::1 |
v6 | |
k.dns.cn |
125.208.35.1 |
v4 | |
k.dns.cn |
2001:dc7:fffc::1 |
v6 | |
l.dns.cn |
125.208.36.1 |
v4 | |
l.dns.cn |
2001:dc7:fffb::1 |
v6 |
Per ICANN Spec 10, we test all delegated nameserver IPs independently.
Test With Your Computer
DNS
dig @h.dns.cn xn--fiqs8s. SOA +dnssec +nsid
Query SOA with DNSSEC validation and NSID
drill -D xn--fiqs8s. SOA @h.dns.cn
Alternative using drill with DNSSEC trace
Registry Information
Active
TLD
.中国 (xn--fiqs8s)
Operator
China (Simplified Chinese)
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).
API Access
JSON APIAccess .中国 (xn--fiqs8s) compliance metrics programmatically via our REST API.
Quick Start
GET
/any53/api/v1/compliance/xn--fiqs8s/
curl -H "X-API-Key: ${YOUR_API_KEY}" \
"https://www.any53.com/any53/api/v1/compliance/xn--fiqs8s/"
Example Response
{
"tld": "xn--fiqs8s",
"display_name": ".中国 (xn--fiqs8s)",
"operator": "China (Simplified Chinese)",
"updated_at": "2026-01-31T12:00:00Z",
"dns": {
"availability_24h": 99.99,
"rtt_p50_ms": 12,
"rtt_p95_ms": 42,
"sla_threshold_ms": 500
},
"servers": {
"whois_host": "whois.cnnic.cn"
},
"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 |