.brussels

TLD SLA Compliance Monitoring

TLD SLA Compliance Metrics

Spec 10

DNS

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 63ms 103ms 84
7d 100% 100% 64ms 156ms 2136
30d 94.02% 94.02% 64ms 171ms 2860

RDAP

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 378ms 2597ms 12
7d 100% 99.58% 420ms 1680ms 236
30d 100% 99.68% 477ms 1649ms 316

DNSSEC Validation Metrics

Registry Agreement Spec 6

DNSSEC 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% 109ms 112ms 4
7d 100% 110ms 114ms 108
30d 100% 110ms 115ms 156

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 2.2ms 16 minutes ago local NSID: 746c642d616c6c2d6368693… OK
DNS v6 2.2ms 16 minutes ago local NSID: 746c642d616c6c2d6368693… OK
DNSSEC v4 111ms 1 hour, 42 minutes ago local Key: 64008 OK
DNSSEC v6 110ms 1 hour, 42 minutes ago local Key: 64008 OK
RDAP v4 370ms 26 minutes ago local TLS 1.3 OK
RDAP v6 721ms 26 minutes ago local TLS 1.3 OK

RDAP HTTPS Timing

721ms total
DNS Lookup
—
TCP Connect
140ms
TLS Handshake
142ms
Time to First Byte
721ms

TLS 1.3 / TLS_AES_256_GCM_SHA384

Nameservers

12 IPs tested
Hostname IP Address AF Status
a.nsset.brussels 194.0.6.1 v4
a.nsset.brussels 2001:678:9::1 v6
b.nsset.brussels 194.0.37.1 v4
b.nsset.brussels 2001:678:64::1 v6
c.nsset.brussels 194.0.43.1 v4
c.nsset.brussels 2001:678:68::1 v6
d.nsset.brussels 194.0.44.1 v4
d.nsset.brussels 2001:678:6c::1 v6
y.nsset.brussels 120.29.253.8 v4
y.nsset.brussels 2001:dcd:7::8 v6
z.nsset.brussels 194.0.25.14 v4
z.nsset.brussels 2001:678:20::14 v6

Per ICANN Spec 10, we test all delegated nameserver IPs independently.

Test With Your Computer

DNS

dig @a.nsset.brussels brussels. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID
drill -D brussels. SOA @a.nsset.brussels Alternative using drill with DNSSEC trace

RDAP

curl -sS "https://rdap.nic.brussels/domain/nic.brussels" | jq . Fetch RDAP JSON (positive lookup)
curl -I -sS "https://rdap.nic.brussels/domain/nic.brussels" Headers only (check TLS, timing)
Open in Browser View RDAP response directly

Registry Information

Active
TLD .brussels
Operator DNS.be vzw
RDAP Server https://rdap.nic.brussels/ RDAP Client

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).
RDAP SLA RTT ≤ 4000ms for 95% of queries. Availability: 98% (max 864 min/month downtime).

API Access

JSON API

Access .brussels compliance metrics programmatically via our REST API.

Quick Start

GET /any53/api/v1/compliance/brussels/ 
curl -H "X-API-Key: ${YOUR_API_KEY}" \
  "https://www.any53.com/any53/api/v1/compliance/brussels/"

Example Response

{
  "tld": "brussels",
  "display_name": ".brussels",
  "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.brussels/"
  },
  "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).

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

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