.sk

TLD SLA Compliance Monitoring

TLD SLA Compliance Metrics

Spec 10

DNS

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 47ms 108ms 70
7d 100% 100% 45ms 191ms 2394
30d 94.12% 94.12% 44ms 191ms 3389

WHOIS

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 250ms 701ms 4
7d 100% 100% 251ms 638ms 228
30d 100% 100% 255ms 631ms 308

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% 126ms 127ms 12
7d 96.90% 214ms 341ms 226
30d 97.77% 189ms 279ms 314

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 18ms 3 hours, 17 minutes ago local NSID: WVQS-AQ5DSO-L6ZRS7 OK
DNS v6 18ms 3 hours, 17 minutes ago local NSID: WVQS-AQ5DSO-L6ZRS7 OK
DNSSEC v4 127ms 3 hours, 11 minutes ago local Key: 56329 OK
DNSSEC v6 126ms 3 hours, 11 minutes ago local Key: 56329 OK
WHOIS v4 238ms 4 hours, 37 minutes ago local — OK
WHOIS v6 251ms 4 hours, 37 minutes ago local — OK

Nameservers

14 IPs tested
Hostname IP Address AF Status
a.tld.sk 194.0.45.1 v4
a.tld.sk 2001:678:70::1 v6
b.tld.sk 84.245.96.1 v4
b.tld.sk 2001:678:90::1 v6
c.tld.sk 195.12.159.1 v4
c.tld.sk 2001:678:9c::1 v6
e.tld.sk 194.169.218.16 v4
e.tld.sk 2001:67c:13cc::1:16 v6
f.tld.sk 185.24.64.16 v4
f.tld.sk 2a04:2b00:13cc::1:16 v6
g.tld.sk 212.18.248.16 v4
g.tld.sk 2a04:2b00:13ee::16 v6
h.tld.sk 212.18.249.16 v4
h.tld.sk 2a04:2b00:13ff::16 v6

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

Test With Your Computer

DNS

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

WHOIS

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

Registry Information

Active
TLD .sk
Operator Slovakia
WHOIS Server whois.sk-nic.sk

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 .sk compliance metrics programmatically via our REST API.

Quick Start

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

Example Response

{
  "tld": "sk",
  "display_name": ".sk",
  "operator": "Slovakia",
  "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.sk-nic.sk"
  },
  "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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