TLD SLA Compliance Metrics
Spec 10DNS
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | 100% | 100% | 102ms | 154ms | 90 | |
| 7d | 100% | 100% | 104ms | 528ms | 1320 | |
| 30d | 93.50% | 93.50% | 103ms | 528ms | 1906 |
Current Check Status
Reported by Any53 Probes| Type | AF | RTT | Last Check | Source | Details | Status | TSLAC |
|---|---|---|---|---|---|---|---|
DNS
|
v4 | 49ms | 13 minutes ago | local | NSID: rip.psg.com | OK | |
DNS
|
v6 | 45ms | 13 minutes ago | local | NSID: rip.psg.com | OK |
Nameservers
10 IPs tested| Hostname | IP Address | AF | Status |
|---|---|---|---|
cu.cctld.authdns.ripe.net |
193.0.9.70 |
v4 | |
cu.cctld.authdns.ripe.net |
2a13:27c0:30::70 |
v6 | |
ns.ceniai.net.cu |
169.158.128.136 |
v4 | |
ns.ceniai.net.cu |
2001:1340:1:128::136 |
v6 | |
ns.dns.br |
200.160.0.5 |
v4 | |
ns.dns.br |
2001:12ff:0:a20::5 |
v6 | |
ns2.ceniai.net.cu |
169.158.128.88 |
v4 | |
ns2.gip.net |
204.59.1.222 |
v4 | |
rip.psg.com |
147.28.0.39 |
v4 | |
rip.psg.com |
2001:418:1::39 |
v6 |
Per ICANN Spec 10, we test all delegated nameserver IPs independently.
Test With Your Computer
DNS
dig @cu.cctld.authdns.ripe.net cu. SOA +dnssec +nsid
Query SOA with DNSSEC validation and NSID
drill -D cu. SOA @cu.cctld.authdns.ripe.net
Alternative using drill with DNSSEC trace
Registry Information
Active
TLD
.cu
Operator
Cuba
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 .cu compliance metrics programmatically via our REST API.
Quick Start
GET
/any53/api/v1/compliance/cu/
curl -H "X-API-Key: ${YOUR_API_KEY}" \
"https://www.any53.com/any53/api/v1/compliance/cu/"
Example Response
{
"tld": "cu",
"display_name": ".cu",
"operator": "Cuba",
"updated_at": "2026-01-31T12:00:00Z",
"dns": {
"availability_24h": 99.99,
"rtt_p50_ms": 12,
"rtt_p95_ms": 42,
"sla_threshold_ms": 500
},
"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 |