.to SLA Compliance

TLD SLA Compliance Metrics

Spec 10

DNS

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	10ms	28ms	308
7d	100%	100%	10ms	34ms	1680
30d	99.93%	99.93%	10ms	194ms	9340

RDAP

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	57ms	77ms	72
7d	100%	100%	57ms	77ms	360
30d	100%	100%	56ms	77ms	2004

Current Check Status

Reported by Any53 Probes

Type	AF	RTT	Last Check	Source	Details	Status
`DNS`	v4	1.2ms	14 minutes ago	local	NSID: 2.ord.pch	OK
`DNS`	v6	1.2ms	55 days, 6 hours ago	local	NSID: 2.ord.pch	OK
`RDAP`	v4	50ms	2 hours, 37 minutes ago	local	TLS 1.2	OK
`RDAP`	v6	53ms	2 hours, 37 minutes ago	local	TLS 1.2	OK

RDAP HTTPS Timing

53ms total

DNS Lookup

—

TCP Connect

1.0ms

TLS Handshake

34ms

Time to First Byte

53ms

TLS 1.2 / TLS_ECDHE_ECDSA_WITH_AES_128_GCM_SHA256

Nameservers

4 IPs tested

Hostname	IP Address	AF	ASN
`ns01.trs-dns.com`	`64.96.1.1`	v4	AS393818
`ns01.trs-dns.net`	`64.96.2.1`	v4	AS63363
`ns10.trs-dns.info`	`64.78.204.1`	v4	AS42
`ns10.trs-dns.org`	`64.78.205.1`	v4	AS42

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

Test With Your Computer

DNS

dig @ns01.trs-dns.com to. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID

drill -D to. SOA @ns01.trs-dns.com Alternative using drill with DNSSEC trace

RDAP

curl -sS "https://rdap.tonicregistry.to/rdap/domain/nic.to" | jq . Fetch RDAP JSON (positive lookup)

curl -I -sS "https://rdap.tonicregistry.to/rdap/domain/nic.to" Headers only (check TLS, timing)

Open in Browser View RDAP response directly

Registry Information

Active

TLD .to

Operator Tonga

RDAP Server https://rdap.tonicregistry.to/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 .to compliance metrics programmatically via our REST API.

Quick Start

GET /any53/api/v1/compliance/to/

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

Example Response

{
  "tld": "to",
  "display_name": ".to",
  "operator": "Tonga",
  "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.tonicregistry.to/rdap/",
    "whois_host": "whois.tonic.to"
  },
  "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