.io SLA Compliance

TLD SLA Compliance Metrics

Spec 10

DNS

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	71ms	231ms	72
7d	100%	100%	71ms	241ms	1672
30d	94.87%	94.87%	72ms	241ms	2178

WHOIS

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	118ms	786ms	16
7d	100%	100%	116ms	703ms	216
30d	100%	100%	116ms	668ms	304

EPP *

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	45ms	46ms	4
7d	100%	100%	43ms	47ms	98
30d	100%	100%	36ms	39ms	112

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%	141ms	154ms	14
7d	100%	136ms	154ms	158
30d	100%	137ms	154ms	221

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	123ms	1 hour, 44 minutes ago	local	NSID: app7.nrt1.hosts.meta.re…	OK
`DNS`	v6	135ms	1 hour, 44 minutes ago	local	NSID: app9.nrt1.hosts.meta.re…	OK
`DNSSEC`	v4	141ms	1 hour, 30 minutes ago	local	Key: 57355	OK
`DNSSEC`	v6	153ms	1 hour, 30 minutes ago	local	Key: 57355	OK
`EPP *`	v4	46ms	4 hours, 40 minutes ago	local	Tudor EPP (Mock) v2.0	OK
`EPP *`	v6	47ms	4 hours, 40 minutes ago	local	Tudor EPP (Mock) v2.0	OK
`WHOIS`	v4	113ms	1 hour, 18 minutes ago	local	—	OK
`WHOIS`	v6	117ms	1 hour, 18 minutes ago	local	—	OK

Nameservers

8 IPs tested

Hostname	IP Address	AF
`a0.nic.io`	`65.22.160.17`	v4
`a0.nic.io`	`2a01:8840:9e::17`	v6
`a2.nic.io`	`65.22.163.17`	v4
`a2.nic.io`	`2a01:8840:a1::17`	v6
`b0.nic.io`	`65.22.161.17`	v4
`b0.nic.io`	`2a01:8840:9f::17`	v6
`c0.nic.io`	`65.22.162.17`	v4
`c0.nic.io`	`2a01:8840:a0::17`	v6

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

Test With Your Computer

DNS

dig @a0.nic.io io. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID

drill -D io. SOA @a0.nic.io Alternative using drill with DNSSEC trace

WHOIS

whois -h whois.nic.io nic.io Query WHOIS server directly

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

Registry Information

Active

TLD .io

Operator British Indian Ocean Territory

WHOIS Server whois.nic.io

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).

EPP SLA RTT ≤ 4000ms for 95% of commands (Spec 10 §5). Availability: 98% (max 864 min/month downtime). (Demo mode)

API Access

JSON API

Access .io compliance metrics programmatically via our REST API.

Quick Start

GET /any53/api/v1/compliance/io/

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

Example Response

{
  "tld": "io",
  "display_name": ".io",
  "operator": "British Indian Ocean Territory",
  "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.nic.io"
  },
  "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