.link SLA Compliance

TLD SLA Compliance Metrics

Spec 10

DNS

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	10ms	29ms	312
7d	100%	100%	10ms	32ms	1776
30d	100%	100%	10ms	109ms	10268

RDAP

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	58ms	129ms	68
7d	100%	100%	58ms	128ms	360
30d	100%	100%	60ms	136ms	2008

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%	37ms	39ms	44
7d	100%	37ms	37ms	240
30d	100%	37ms	38ms	1318

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	1.3ms	5 minutes ago	local	NSID: 1.ord.pch	OK
`DNS`	v6	22ms	29 days, 17 hours ago	local	NSID: ewr01.dns2	OK
`DNSSEC`	v4	37ms	18 minutes ago	local	Key: 16766	OK
`DNSSEC`	v6	38ms	18 minutes ago	local	Key: 16766	OK
`RDAP`	v4	3652ms	1 hour, 36 minutes ago	local	TLS 1.2	OK
`RDAP`	v6	440ms	1 hour, 36 minutes ago	local	TLS 1.2	OK

RDAP HTTPS Timing

440ms total

DNS Lookup

—

TCP Connect

1.0ms

TLS Handshake

30ms

Time to First Byte

439ms

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 link. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID

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

RDAP

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

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

Open in Browser View RDAP response directly

Registry Information

Active

TLD .link

Operator Nova Registry Ltd

RDAP Server https://rdap.tucowsregistry.net/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 .link compliance metrics programmatically via our REST API.

Quick Start

GET /any53/api/v1/compliance/link/

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

Example Response

{
  "tld": "link",
  "display_name": ".link",
  "operator": "Nova Registry Ltd",
  "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.tucowsregistry.net/rdap/"
  },
  "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