.city

TLD SLA Compliance Monitoring

TLD SLA Compliance Metrics

Spec 10

DNS

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 36ms 90ms 264
7d 100% 100% 47ms 170ms 1440
30d 100% 100% 45ms 170ms 4860

RDAP

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 94ms 134ms 20
7d 100% 100% 100ms 145ms 120
30d 100% 100% 101ms 149ms 408

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 97.73% 56ms 621ms 44
7d 98.33% 191ms 411ms 240
30d 99.51% 161ms 227ms 816

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 10.0ms 42 minutes ago local NSID: YYZ3 OK
DNS v6 11ms 160 days, 5 hours ago local NSID: YYZ3 OK
DNSSEC v4 56ms 1 hour, 59 minutes ago local Key: 32800 OK
DNSSEC v6 190ms 1 hour, 59 minutes ago local Key: 32800 OK
RDAP v4 89ms 27 minutes ago local TLS 1.3 OK
RDAP v6 92ms 27 minutes ago local TLS 1.3 OK

RDAP HTTPS Timing

92ms total
DNS Lookup
0.42ms
TCP Connect
2.9ms
TLS Handshake
12ms
Time to First Byte
91ms

TLS 1.3 / TLS_AES_128_GCM_SHA256

Nameservers

6 IPs tested
Hostname IP Address AF ASN RPKI Status
v0n0.nic.city 65.22.24.4 v4 — —
v0n1.nic.city 65.22.25.4 v4 — —
v0n2.nic.city 65.22.26.4 v4 — —
v0n3.nic.city 161.232.12.4 v4 — —
v2n0.nic.city 65.22.27.4 v4 — —
v2n1.nic.city 161.232.13.4 v4 — —

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

Test With Your Computer

DNS

dig @v0n0.nic.city city. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID
drill -D city. SOA @v0n0.nic.city Alternative using drill with DNSSEC trace

RDAP

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

Registry Information

Active
TLD .city
Operator Binky Moon, LLC
RDAP Server https://rdap.identitydigital.services/rdap/ 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 .city compliance metrics programmatically via our REST API.

Quick Start

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

Example Response

{
  "tld": "city",
  "display_name": ".city",
  "operator": "Binky Moon, LLC",
  "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.identitydigital.services/rdap/"
  },
  "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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