TLD SLA Compliance Metrics
Spec 10DNS
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | 100% | 100% | 101ms | 244ms | 279 | |
| 7d | 100% | 100% | 110ms | 315ms | 1620 | |
| 30d | 99.90% | 99.90% | 109ms | 315ms | 8832 |
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% | 250ms | 268ms | 66 | |
| 7d | 99.72% | 247ms | 320ms | 360 | |
| 30d | 99.85% | 248ms | 305ms | 2008 |
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 | 2.5ms | 21 minutes ago | local | — | OK | |
DNS
|
v6 | 2000ms | 22 minutes ago | local | — | FAIL | |
DNSSEC
|
v4 | 248ms | 49 minutes ago | local | Key: 11103 | OK | |
DNSSEC
|
v6 | 263ms | 49 minutes ago | local | Key: 11103 | OK |
Nameservers
9 IPs tested| Hostname | IP Address | AF | ASN | RPKI | Status |
|---|---|---|---|---|---|
d.nic.lk |
123.231.6.18 |
v4 | — | — | |
h.nic.lk |
43.252.12.206 |
v4 | — | — | |
m.nic.lk |
202.129.235.229 |
v4 | — | — | |
m.nic.lk |
2407:c00:21:8:202:129:235:229 |
v6 | — | — | |
ns1.ac.lk |
192.248.1.162 |
v4 | — | — | |
p.nic.lk |
204.61.216.27 |
v4 | — | — | |
pendragon.cs.purdue.edu |
128.10.2.5 |
v4 | — | — | |
t.nic.lk |
203.94.66.129 |
v4 | — | — | |
z.nic.lk |
185.38.108.108 |
v4 | AS60592 |
Per ICANN Spec 10, we test all delegated nameserver IPs independently.
Test With Your Computer
DNS
dig @d.nic.lk lk. SOA +dnssec +nsid
Query SOA with DNSSEC validation and NSID
drill -D lk. SOA @d.nic.lk
Alternative using drill with DNSSEC trace
Registry Information
Active
TLD
.lk
Operator
Sri Lanka
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 .lk compliance metrics programmatically via our REST API.
Quick Start
GET
/any53/api/v1/compliance/lk/
curl -H "X-API-Key: ${YOUR_API_KEY}" \
"https://www.any53.com/any53/api/v1/compliance/lk/"
Example Response
{
"tld": "lk",
"display_name": ".lk",
"operator": "Sri Lanka",
"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 |