.dk SLA Compliance

TLD SLA Compliance Metrics

Spec 10

DNS

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	55ms	112ms	168
7d	99.17%	99.17%	55ms	262ms	960
30d	99.75%	99.75%	55ms	347ms	3240

WHOIS

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	198ms	211ms	40
7d	100%	100%	240ms	396ms	240
30d	100%	100%	210ms	359ms	808

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
24h	100%	113ms	120ms	30
7d	100%	114ms	187ms	180
30d	100%	113ms	140ms	606

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
`DNS`	v4	24ms	42 minutes ago	local	NSID: dns-linxnova-01.nic.cz	OK
`DNS`	v6	2.8ms	42 minutes ago	local	NSID: i3d-us14-ns01-148249	OK
`DNSSEC`	v4	120ms	1 hour, 43 minutes ago	local	Key: 16874	OK
`DNSSEC`	v6	113ms	1 hour, 43 minutes ago	local	Key: 16874	OK
`WHOIS`	v4	208ms	48 minutes ago	local	—	OK
`WHOIS`	v6	194ms	48 minutes ago	local	—	OK

Nameservers

8 IPs tested

Hostname	IP Address	AF	ASN	RPKI
`b.nic.dk`	`193.163.102.222`	v4	—	—
`c.nic.dk`	`185.159.199.45`	v4	—	—
`h.nic.dk`	`46.30.126.214`	v4	—	—
`l.nic.dk`	`130.226.213.138`	v4	—	—
`l.nic.dk`	`2001:878:0:e000:82:e2:d5:8a`	v6	—	—
`s.nic.dk`	`194.0.28.7`	v4	—	—
`s.nic.dk`	`2001:678:2c:0:194:0:28:7`	v6	—	—
`t.nic.dk`	`185.43.134.16`	v4	—	—

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

Test With Your Computer

DNS

dig @b.nic.dk dk. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID

drill -D dk. SOA @b.nic.dk Alternative using drill with DNSSEC trace

WHOIS

whois -h whois.dk-hostmaster.dk nic.dk Query WHOIS server directly

echo "nic.dk" | nc whois.dk-hostmaster.dk 43 Raw TCP query (see exact response)

Registry Information

Active

TLD .dk

Operator Denmark

WHOIS Server whois.dk-hostmaster.dk

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 .dk compliance metrics programmatically via our REST API.

Quick Start

GET /any53/api/v1/compliance/dk/

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

Example Response

{
  "tld": "dk",
  "display_name": ".dk",
  "operator": "Denmark",
  "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.dk-hostmaster.dk"
  },
  "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