.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% 157ms 196ms 80
7d 99.54% 99.54% 158ms 222ms 2170
30d 94.28% 94.28% 158ms 222ms 2850

WHOIS

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h No data available
7d 98.00% 96.00% 354ms 1884ms 100
30d 98.68% 97.37% 355ms 1733ms 152

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% 198ms 198ms 10
7d 45.15% 663ms 663ms 206
30d 45.67% 617ms 675ms 300

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 1 hour, 55 minutes ago local NSID: G084 OK
DNS v6 161ms 1 hour, 55 minutes ago local NSID: G003 OK
DNSSEC v4 190ms 1 hour, 17 minutes ago local Key: 61615 OK
DNSSEC v6 — 1 hour, 17 minutes ago local — FAIL
WHOIS v4 356ms 1 day, 1 hour ago local — OK
WHOIS v6 324ms 1 day, 1 hour ago local — OK

Nameservers

10 IPs tested
Hostname IP Address AF 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
d.dns.kr 2001:dcc:4::1 v6
e.dns.kr 202.30.124.100 v4
e.dns.kr 2001:dcc:5::100 v6
f.dns.kr 210.101.62.1 v4
f.dns.kr 2001:dcc:6::1 v6
g.dns.kr 202.31.190.1 v4
g.dns.kr 2001:dc5:a::1 v6

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