.fast

TLD SLA Compliance Monitoring

TLD SLA Compliance Metrics

Spec 10

DNS

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 28ms 86ms 528
7d 100% 100% 29ms 114ms 2784
30d 100% 100% 28ms 118ms 15856

RDAP

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 336ms 474ms 44
7d 100% 100% 334ms 485ms 240
30d 99.63% 99.55% 364ms 550ms 1344

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% 37ms 102ms 88
7d 99.79% 38ms 143ms 476
30d 99.96% 38ms 110ms 2680

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 1.4ms 13 minutes ago local NSID: u-ci-nominet1.uschi1. OK
DNS v6 1.5ms 85 days, 13 hours ago local NSID: u-ci-nominet1.uschi1. OK
DNSSEC v4 39ms 35 seconds ago local Key: 50396 OK
DNSSEC v6 103ms 34 seconds ago local Key: 50396 OK
RDAP v4 298ms 1 hour, 43 minutes ago local TLS 1.3 OK
RDAP v6 457ms 1 hour, 43 minutes ago local TLS 1.3 OK

RDAP HTTPS Timing

457ms total
DNS Lookup
178ms
TCP Connect
85ms
TLS Handshake
94ms
Time to First Byte
457ms

TLS 1.3 / TLS_AES_128_GCM_SHA256

Nameservers

8 IPs tested
Hostname IP Address AF ASN RPKI Status
dns1.nic.fast 213.248.218.66 v4 — —
dns2.nic.fast 103.49.82.66 v4 — —
dns3.nic.fast 213.248.222.66 v4 — —
dns4.nic.fast 43.230.50.66 v4 — —
dnsa.nic.fast 156.154.100.3 v4 AS12008
dnsb.nic.fast 156.154.101.3 v4 AS12008
dnsc.nic.fast 156.154.102.3 v4 AS12008
dnsd.nic.fast 156.154.103.3 v4 AS12008

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

Test With Your Computer

DNS

dig @dns1.nic.fast fast. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID
drill -D fast. SOA @dns1.nic.fast Alternative using drill with DNSSEC trace

RDAP

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

Registry Information

Active
TLD .fast
Operator Amazon Registry Services, Inc.
RDAP Server https://rdap.nominet.uk/fast/ 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 .fast compliance metrics programmatically via our REST API.

Quick Start

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

Example Response

{
  "tld": "fast",
  "display_name": ".fast",
  "operator": "Amazon Registry Services, Inc.",
  "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.nominet.uk/fast/"
  },
  "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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