TLD SLA Compliance Metrics
Spec 10DNS
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | 100% | 100% | 27ms | 156ms | 880 | |
| 7d | 100% | 100% | 23ms | 142ms | 4800 | |
| 30d | 100% | 100% | 20ms | 1760ms | 26560 |
RDAP
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | 100% | 100% | 340ms | 495ms | 64 | |
| 7d | 99.72% | 99.72% | 313ms | 669ms | 360 | |
| 30d | 99.64% | 99.53% | 329ms | 586ms | 1928 |
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% | 38ms | 110ms | 78 | |
| 7d | 99.76% | 40ms | 153ms | 420 | |
| 30d | 99.96% | 39ms | 114ms | 2330 |
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 | 1.3ms | 11 minutes ago | local | NSID: u-ci-nominet2.uschi1. | OK | |
DNS
|
v6 | 1.7ms | 11 minutes ago | local | NSID: u-ci-nominet1.uschi1. | OK | |
DNSSEC
|
v4 | 38ms | 28 minutes ago | local | Key: 43570 | OK | |
DNSSEC
|
v6 | 102ms | 28 minutes ago | local | Key: 43570 | OK | |
RDAP
|
v4 | 550ms | 1 hour, 10 minutes ago | local | TLS 1.3 | OK | |
RDAP
|
v6 | 368ms | 1 hour, 9 minutes ago | local | TLS 1.3 | OK |
RDAP HTTPS Timing
368ms total
DNS Lookup
90ms
TCP Connect
84ms
TLS Handshake
94ms
Time to First Byte
367ms
TLS 1.3 / TLS_AES_128_GCM_SHA256
Nameservers
16 IPs tested| Hostname | IP Address | AF | ASN | RPKI | Status |
|---|---|---|---|---|---|
dns1.nic.xbox |
213.248.219.134 |
v4 | — | — | |
dns1.nic.xbox |
2a01:618:403::134 |
v6 | — | — | |
dns2.nic.xbox |
103.49.83.134 |
v4 | — | — | |
dns2.nic.xbox |
2401:fd80:403::134 |
v6 | — | — | |
dns3.nic.xbox |
213.248.223.134 |
v4 | — | — | |
dns3.nic.xbox |
2a01:618:407::134 |
v6 | — | — | |
dns4.nic.xbox |
43.230.51.134 |
v4 | — | — | |
dns4.nic.xbox |
2401:fd80:407::134 |
v6 | — | — | |
dnsa.nic.xbox |
156.154.100.3 |
v4 | AS12008 | ||
dnsa.nic.xbox |
2001:502:ad09::3 |
v6 | — | — | |
dnsb.nic.xbox |
156.154.101.3 |
v4 | AS12008 | ||
dnsb.nic.xbox |
2001:502:2eda::3 |
v6 | — | — | |
dnsc.nic.xbox |
156.154.102.3 |
v4 | AS12008 | ||
dnsc.nic.xbox |
2610:a1:1009::3 |
v6 | — | — | |
dnsd.nic.xbox |
156.154.103.3 |
v4 | AS12008 | ||
dnsd.nic.xbox |
2610:a1:1010::3 |
v6 | — | — |
Per ICANN Spec 10, we test all delegated nameserver IPs independently.
Test With Your Computer
DNS
dig @dns1.nic.xbox xbox. SOA +dnssec +nsid
Query SOA with DNSSEC validation and NSID
drill -D xbox. SOA @dns1.nic.xbox
Alternative using drill with DNSSEC trace
RDAP
curl -sS "https://rdap.nominet.uk/xbox/domain/nic.xbox" | jq .
Fetch RDAP JSON (positive lookup)
curl -I -sS "https://rdap.nominet.uk/xbox/domain/nic.xbox"
Headers only (check TLS, timing)
Open in Browser
View RDAP response directly
Registry Information
ActiveICANN SLA Requirements
Per ICANN Registry Agreement Specification 10:
DNS SLA
UDP RTT ≤ 500ms for 95% of queries.
Availability: 99% (max 432 min/month downtime).
RDAP SLA
RTT ≤ 4000ms for 95% of queries.
Availability: 98% (max 864 min/month downtime).
API Access
JSON APIAccess .xbox compliance metrics programmatically via our REST API.
Quick Start
GET
/any53/api/v1/compliance/xbox/
curl -H "X-API-Key: ${YOUR_API_KEY}" \
"https://www.any53.com/any53/api/v1/compliance/xbox/"
Example Response
{
"tld": "xbox",
"display_name": ".xbox",
"operator": "Microsoft Corporation",
"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": "RDAP",
"availability_24h": 99.95,
"rtt_p50_ms": 180,
"rtt_p95_ms": 412,
"sla_threshold_ms": 4000
},
"servers": {
"rdap_url": "https://rdap.nominet.uk/xbox/"
},
"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 |