TLD SLA Compliance Metrics
Spec 10DNS
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | 100% | 100% | 64ms | 175ms | 864 | |
| 7d | 100% | 100% | 64ms | 152ms | 4680 | |
| 30d | 99.93% | 99.93% | 64ms | 192ms | 26040 |
RDAP
| Period | Availability | RTT Compliance | RTT p50 | RTT p95 | Checks | TSLAC |
|---|---|---|---|---|---|---|
| 24h | 100% | 100% | 477ms | 1152ms | 64 | |
| 7d | 100% | 100% | 438ms | 1247ms | 360 | |
| 30d | 100% | 100% | 435ms | 1247ms | 2016 |
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% | 113ms | 115ms | 66 | |
| 7d | 100% | 111ms | 113ms | 360 | |
| 30d | 99.75% | 112ms | 139ms | 1964 |
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 | 2.1ms | 47 minutes ago | local | NSID: 746c642d616c6c2d6368693… | OK | |
DNS
|
v6 | 2.1ms | 47 minutes ago | local | NSID: 746c642d616c6c2d6368693… | OK | |
DNSSEC
|
v4 | 110ms | 5 minutes ago | local | Key: 56582 | OK | |
DNSSEC
|
v6 | 113ms | 5 minutes ago | local | Key: 56582 | OK | |
RDAP
|
v4 | 167ms | 1 hour, 56 minutes ago | local | TLS 1.3 | OK | |
RDAP
|
v6 | 690ms | 1 hour, 56 minutes ago | local | TLS 1.3 | OK |
RDAP HTTPS Timing
690ms total
DNS Lookup
—
TCP Connect
139ms
TLS Handshake
142ms
Time to First Byte
690ms
TLS 1.3 / TLS_AES_256_GCM_SHA384
Nameservers
12 IPs tested| Hostname | IP Address | AF | ASN | RPKI | Status |
|---|---|---|---|---|---|
a.nsset.vlaanderen |
194.0.6.1 |
v4 | AS199670 | ||
a.nsset.vlaanderen |
2001:678:9::1 |
v6 | — | — | |
b.nsset.vlaanderen |
194.0.37.1 |
v4 | AS199670 | ||
b.nsset.vlaanderen |
2001:678:64::1 |
v6 | — | — | |
c.nsset.vlaanderen |
194.0.43.1 |
v4 | AS199670 | ||
c.nsset.vlaanderen |
2001:678:68::1 |
v6 | — | — | |
d.nsset.vlaanderen |
194.0.44.1 |
v4 | AS199670 | ||
d.nsset.vlaanderen |
2001:678:6c::1 |
v6 | — | — | |
y.nsset.vlaanderen |
120.29.253.8 |
v4 | AS12008 | ||
y.nsset.vlaanderen |
2001:dcd:7::8 |
v6 | — | — | |
z.nsset.vlaanderen |
194.0.25.19 |
v4 | — | — | |
z.nsset.vlaanderen |
2001:678:20::19 |
v6 | — | — |
Per ICANN Spec 10, we test all delegated nameserver IPs independently.
Test With Your Computer
DNS
dig @a.nsset.vlaanderen vlaanderen. SOA +dnssec +nsid
Query SOA with DNSSEC validation and NSID
drill -D vlaanderen. SOA @a.nsset.vlaanderen
Alternative using drill with DNSSEC trace
RDAP
curl -sS "https://rdap.nic.vlaanderen/domain/nic.vlaanderen" | jq .
Fetch RDAP JSON (positive lookup)
curl -I -sS "https://rdap.nic.vlaanderen/domain/nic.vlaanderen"
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 .vlaanderen compliance metrics programmatically via our REST API.
Quick Start
GET
/any53/api/v1/compliance/vlaanderen/
curl -H "X-API-Key: ${YOUR_API_KEY}" \
"https://www.any53.com/any53/api/v1/compliance/vlaanderen/"
Example Response
{
"tld": "vlaanderen",
"display_name": ".vlaanderen",
"operator": "DNS.be vzw",
"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.nic.vlaanderen/"
},
"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 |