TLD SLA Compliance Metrics
Spec 10DNS
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | 100% | 100% | 114ms | 159ms | 605 | |
| 7d | 100% | 100% | 116ms | 234ms | 3278 | |
| 30d | 99.92% | 99.92% | 111ms | 299ms | 18194 |
Current Check Status
Reported by Any53 Probes| Type | AF | RTT | Last Check | Source | Details | Status | TSLAC |
|---|---|---|---|---|---|---|---|
DNS
|
v4 | 95ms | 30 minutes ago | local | — | OK | |
DNS
|
v6 | 89ms | 30 minutes ago | local | — | OK |
Nameservers
11 IPs tested| Hostname | IP Address | AF | ASN | RPKI | Status |
|---|---|---|---|---|---|
root1.zone.tc |
31.169.81.225 |
v4 | — | — | |
root2.zone.tc |
87.106.83.96 |
v4 | — | — | |
root3.zone.tc |
217.154.159.29 |
v4 | — | — | |
root4.zone.tc |
31.169.81.226 |
v4 | — | — | |
root5.zone.tc |
95.173.188.6 |
v4 | — | — | |
root6.zone.tc |
166.78.254.145 |
v4 | — | — | |
root6.zone.tc |
2001:4801:7819:74:a322:3632:ff10:3e2f |
v6 | — | — | |
root7.zone.tc |
119.9.93.69 |
v4 | — | — | |
root7.zone.tc |
2401:1800:7800:102:ab3b:e6a7:859f:a6c7 |
v6 | — | — | |
root8.zone.tc |
162.13.87.182 |
v4 | — | — | |
root8.zone.tc |
2a00:1a48:7806:115:d994:9fe:9eb2:e68d |
v6 | — | — |
Per ICANN Spec 10, we test all delegated nameserver IPs independently.
Test With Your Computer
DNS
dig @root1.zone.tc tc. SOA +dnssec +nsid
Query SOA with DNSSEC validation and NSID
drill -D tc. SOA @root1.zone.tc
Alternative using drill with DNSSEC trace
Registry Information
Active
TLD
.tc
Operator
Turks and Caicos Islands
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 .tc compliance metrics programmatically via our REST API.
Quick Start
GET
/any53/api/v1/compliance/tc/
curl -H "X-API-Key: ${YOUR_API_KEY}" \
"https://www.any53.com/any53/api/v1/compliance/tc/"
Example Response
{
"tld": "tc",
"display_name": ".tc",
"operator": "Turks and Caicos Islands",
"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.nic.tc"
},
"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 |