TLD SLA Compliance Metrics
Spec 10DNS
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | 100% | 100% | 62ms | 253ms | 45 | |
| 7d | 100% | 100% | 62ms | 288ms | 1075 | |
| 30d | 95.27% | 95.27% | 67ms | 288ms | 1439 |
WHOIS
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | No data available | |||||
| 7d | 50.00% | 100% | 515ms | 1100ms | 108 | |
| 30d | 50.00% | 100% | 510ms | 1075ms | 172 | |
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 | 0.00% | 252ms | 252ms | 12 | |
| 7d | 0.00% | 252ms | 252ms | 224 | |
| 30d | 0.00% | 252ms | 252ms | 308 |
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 | 44ms | 1 hour, 5 minutes ago | local | NSID: s2.yvr | OK | |
DNS
|
v6 | 29ms | 1 hour, 5 minutes ago | local | NSID: s2.mnp | OK | |
DNSSEC
|
v4 | 252ms | 2 hours, 52 minutes ago | local | — | FAIL | |
DNSSEC
|
v6 | — | 2 hours, 52 minutes ago | local | — | FAIL | |
WHOIS
|
v4 | 517ms | 1 day, 1 hour ago | local | — | FAIL | |
WHOIS
|
v6 | 459ms | 1 day, 1 hour ago | local | — | FAIL |
Nameservers
5 IPs tested| Hostname | IP Address | AF | Status |
|---|---|---|---|
nsza.is.co.za |
196.4.160.27 |
v4 | |
za-ns.anycast.pch.net |
204.61.216.55 |
v4 | |
za-ns.anycast.pch.net |
2001:500:14:6055:ad::1 |
v6 | |
za1.dnsnode.net |
194.146.106.78 |
v4 | |
za1.dnsnode.net |
2001:67c:1010:19::53 |
v6 |
Per ICANN Spec 10, we test all delegated nameserver IPs independently.
Test With Your Computer
DNS
dig @nsza.is.co.za za. SOA +dnssec +nsid
Query SOA with DNSSEC validation and NSID
drill -D za. SOA @nsza.is.co.za
Alternative using drill with DNSSEC trace
WHOIS
whois -h whois.registry.net.za nic.za
Query WHOIS server directly
echo "nic.za" | nc whois.registry.net.za 43
Raw TCP query (see exact response)
Registry Information
Active
TLD
.za
Operator
South Africa
WHOIS Server
whois.registry.net.za
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).
WHOIS SLA
RTT ≤ 4000ms for 95% of queries.
Availability: 98% (max 864 min/month downtime).
API Access
JSON APIAccess .za compliance metrics programmatically via our REST API.
Quick Start
GET
/any53/api/v1/compliance/za/
curl -H "X-API-Key: ${YOUR_API_KEY}" \
"https://www.any53.com/any53/api/v1/compliance/za/"
Example Response
{
"tld": "za",
"display_name": ".za",
"operator": "South Africa",
"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": "WHOIS",
"availability_24h": 99.95,
"rtt_p50_ms": 180,
"rtt_p95_ms": 412,
"sla_threshold_ms": 4000
},
"servers": {
"whois_host": "whois.registry.net.za"
},
"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 |