TLD SLA Compliance Metrics
Spec 10DNS
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | 100% | 100% | 123ms | 351ms | 352 | |
| 7d | 100% | 100% | 115ms | 1597ms | 1920 | |
| 30d | 99.85% | 99.85% | 116ms | 1597ms | 10856 |
Current Check Status
Reported by Any53 Probes| Type | AF | RTT | Last Check | Source | Details | Status | TSLAC |
|---|---|---|---|---|---|---|---|
DNS
|
v4 | 97ms | 32 minutes ago | local | — | OK | |
DNS
|
v6 | 79ms | 32 minutes ago | local | — | OK |
Nameservers
8 IPs tested| Hostname | IP Address | AF | ASN | RPKI | Status |
|---|---|---|---|---|---|
dns-st.bahnhof.net |
79.136.119.20 |
v4 | — | — | |
dns-st.bahnhof.net |
2001:9b0:1:601:250:56ff:feb7:46 |
v6 | — | — | |
ns1.bahnhof.net |
195.178.160.2 |
v4 | — | — | |
ns1.bahnhof.net |
2001:9b0:1:104:250:56ff:feb7:5c51 |
v6 | — | — | |
southeast-2.dns-au.st |
52.63.82.137 |
v4 | — | — | |
southeast-2.dns-au.st |
2406:da1c:306:4700:d0cf:a4f8:f1c7:249e |
v6 | — | — | |
west-2.dns-us.st |
34.218.33.231 |
v4 | — | — | |
west-2.dns-us.st |
2600:1f14:15:cb00:c08f:baeb:bf79:c730 |
v6 | — | — |
Per ICANN Spec 10, we test all delegated nameserver IPs independently.
Test With Your Computer
DNS
dig @dns-st.bahnhof.net st. SOA +dnssec +nsid
Query SOA with DNSSEC validation and NSID
drill -D st. SOA @dns-st.bahnhof.net
Alternative using drill with DNSSEC trace
Registry Information
Active
TLD
.st
Operator
São Tomé and Príncipe
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 .st compliance metrics programmatically via our REST API.
Quick Start
GET
/any53/api/v1/compliance/st/
curl -H "X-API-Key: ${YOUR_API_KEY}" \
"https://www.any53.com/any53/api/v1/compliance/st/"
Example Response
{
"tld": "st",
"display_name": ".st",
"operator": "São Tomé and Príncipe",
"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.st"
},
"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 |