.gov

TLD SLA Compliance Monitoring

TLD SLA Compliance Metrics

Spec 10

DNS

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 2.0ms 4.0ms 84
7d 100% 100% 2.0ms 7.0ms 480
30d 100% 100% 2.0ms 16ms 1620

RDAP

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 92ms 194ms 40
7d 100% 100% 92ms 197ms 240
30d 100% 100% 102ms 192ms 816

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% 20ms 21ms 44
7d 98.75% 103ms 270ms 240
30d 99.63% 44ms 94ms 812

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 2.5ms 5 minutes ago local NSID: 960m65 OK
DNS v6 3.0ms 160 days, 4 hours ago local NSID: 14m646 OK
DNSSEC v4 20ms 35 minutes ago local Key: 2536 OK
DNSSEC v6 21ms 35 minutes ago local Key: 2536 OK
RDAP v4 68ms 3 hours, 30 minutes ago local TLS 1.3 OK
RDAP v6 55ms 3 hours, 30 minutes ago local TLS 1.3 OK

RDAP HTTPS Timing

55ms total
DNS Lookup
—
TCP Connect
2.1ms
TLS Handshake
11ms
Time to First Byte
55ms

TLS 1.3 / TLS_AES_128_GCM_SHA256

Nameservers

4 IPs tested
Hostname IP Address AF ASN RPKI Status
a.ns.gov 199.33.230.1 v4 AS209242
b.ns.gov 199.33.231.1 v4 AS209242
c.ns.gov 199.33.232.1 v4 AS209242
d.ns.gov 199.33.233.1 v4 AS209242

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

Test With Your Computer

DNS

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

RDAP

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

Registry Information

Active
TLD .gov
Operator CISA
RDAP Server https://rdap.nic.gov/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 .gov compliance metrics programmatically via our REST API.

Quick Start

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

Example Response

{
  "tld": "gov",
  "display_name": ".gov",
  "operator": "CISA",
  "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.nic.gov/rdap/",
    "whois_host": "whois.dotgov.gov"
  },
  "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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