TLD SLA Compliance Metrics
Spec 10DNS
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | 100% | 100% | 20ms | 83ms | 1008 | |
| 7d | 100% | 100% | 18ms | 138ms | 5760 | |
| 30d | 100% | 100% | 18ms | 147ms | 31920 |
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% | 40ms | 41ms | 88 | |
| 7d | 100% | 36ms | 36ms | 478 | |
| 30d | 99.89% | 36ms | 45ms | 2630 |
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 | 47ms | 20 seconds ago | local | NSID: M-SFO-1 | OK | |
DNS
|
v6 | 48ms | 56 days, 20 hours ago | local | NSID: M-SFO-4 | OK | |
DNSSEC
|
v4 | 36ms | 9 minutes ago | local | Key: 42581 | OK | |
DNSSEC
|
v6 | 36ms | 9 minutes ago | local | Key: 42581 | OK |
Nameservers
12 IPs tested| Hostname | IP Address | AF | ASN | RPKI | Status |
|---|---|---|---|---|---|
a.ns.arpa |
198.41.0.4 |
v4 | AS397197 | ||
b.ns.arpa |
170.247.170.2 |
v4 | AS394353 | ||
c.ns.arpa |
192.33.4.12 |
v4 | AS2149 | ||
d.ns.arpa |
199.7.91.13 |
v4 | AS10886 | ||
e.ns.arpa |
192.203.230.10 |
v4 | AS21556 | ||
f.ns.arpa |
192.5.5.241 |
v4 | AS3557 | ||
g.ns.arpa |
192.112.36.4 |
v4 | AS5927 | ||
h.ns.arpa |
198.97.190.53 |
v4 | AS1508 | ||
i.ns.arpa |
192.36.148.17 |
v4 | AS29216 | ||
k.ns.arpa |
193.0.14.129 |
v4 | AS25152 | ||
l.ns.arpa |
199.7.83.42 |
v4 | AS20144 | ||
m.ns.arpa |
202.12.27.33 |
v4 | AS7500 |
Per ICANN Spec 10, we test all delegated nameserver IPs independently.
Test With Your Computer
DNS
dig @a.ns.arpa arpa. SOA +dnssec +nsid
Query SOA with DNSSEC validation and NSID
drill -D arpa. SOA @a.ns.arpa
Alternative using drill with DNSSEC trace
Registry Information
Active
TLD
.arpa
Operator
IANA
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 .arpa compliance metrics programmatically via our REST API.
Quick Start
GET
/any53/api/v1/compliance/arpa/
curl -H "X-API-Key: ${YOUR_API_KEY}" \
"https://www.any53.com/any53/api/v1/compliance/arpa/"
Example Response
{
"tld": "arpa",
"display_name": ".arpa",
"operator": "IANA",
"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.iana.org"
},
"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 |