.kr

TLD SLA Compliance Monitoring

TLD SLA Compliance Metrics

Spec 10

DNS

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 177ms 218ms 402
7d 100% 100% 177ms 220ms 2340
30d 99.93% 99.93% 177ms 225ms 12996

WHOIS

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 357ms 411ms 40
7d 100% 99.58% 364ms 747ms 240
30d 100% 99.78% 361ms 579ms 1360

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 50.00% 197ms 198ms 60
7d 48.33% 274ms 437ms 360
30d 47.66% 313ms 508ms 2010

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 178ms 47 minutes ago local NSID: G084 OK
DNS v6 160ms 56 days, 22 hours ago local NSID: G003 OK
DNSSEC v4 195ms 1 hour, 8 minutes ago local Key: 61615 OK
DNSSEC v6 — 1 hour, 8 minutes ago local — FAIL
WHOIS v4 367ms 1 hour, 49 minutes ago local — OK
WHOIS v6 360ms 1 hour, 49 minutes ago local — OK

Nameservers

6 IPs tested
Hostname IP Address AF ASN RPKI Status
b.dns.kr 210.101.60.1 v4 — —
c.dns.kr 210.101.61.1 v4 — —
d.dns.kr 203.83.159.1 v4 — —
e.dns.kr 202.30.124.100 v4 — —
f.dns.kr 210.101.62.1 v4 — —
g.dns.kr 202.31.190.1 v4 — —

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

Test With Your Computer

DNS

dig @b.dns.kr kr. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID
drill -D kr. SOA @b.dns.kr Alternative using drill with DNSSEC trace

WHOIS

whois -h whois.kr nic.kr Query WHOIS server directly
echo "nic.kr" | nc whois.kr 43 Raw TCP query (see exact response)

Registry Information

Active
TLD .kr
Operator South Korea
WHOIS Server whois.kr

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

API Access

JSON API

Access .kr compliance metrics programmatically via our REST API.

Quick Start

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

Example Response

{
  "tld": "kr",
  "display_name": ".kr",
  "operator": "South Korea",
  "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": "WHOIS",
    "availability_24h": 99.95,
    "rtt_p50_ms": 180,
    "rtt_p95_ms": 412,
    "sla_threshold_ms": 4000
  },
  "servers": {
    "whois_host": "whois.kr"
  },
  "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

Enter a TLD name or IDN code • Browse all TLDs