.review SLA Compliance

TLD SLA Compliance Metrics

Spec 10

DNS

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	7.0ms	21ms	264
7d	100%	100%	7.0ms	39ms	1440
30d	99.75%	99.75%	7.0ms	62ms	4872

RDAP

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	173ms	209ms	20
7d	100%	100%	167ms	206ms	120
30d	100%	100%	161ms	202ms	404

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%	36ms	39ms	22
7d	100%	36ms	38ms	120
30d	100%	36ms	37ms	408

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	12ms	57 minutes ago	local	NSID: Auth_Host1.Toronto_Node1	OK
`DNS`	v6	11ms	159 days ago	local	NSID: Auth_Host1.Toronto_Node1	OK
`DNSSEC`	v4	39ms	51 minutes ago	local	Key: 55054	OK
`DNSSEC`	v6	36ms	51 minutes ago	local	Key: 55054	OK
`RDAP`	v4	166ms	26 minutes ago	local	TLS 1.3	OK
`RDAP`	v6	167ms	26 minutes ago	local	TLS 1.3	OK

RDAP HTTPS Timing

167ms total

DNS Lookup

0.27ms

TCP Connect

52ms

TLS Handshake

58ms

Time to First Byte

167ms

TLS 1.3 / TLS_AES_128_GCM_SHA256

Nameservers

6 IPs tested

Hostname	IP Address	AF	ASN	RPKI
`a.nic.review`	`37.209.192.10`	v4	AS12008
`b.nic.review`	`37.209.194.10`	v4	AS12008
`c.nic.review`	`37.209.196.10`	v4	AS12008
`ns1.dns.nic.review`	`156.154.169.35`	v4	—	—
`ns2.dns.nic.review`	`156.154.170.35`	v4	—	—
`ns3.dns.nic.review`	`156.154.171.35`	v4	—	—

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

Test With Your Computer

DNS

dig @a.nic.review review. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID

drill -D review. SOA @a.nic.review Alternative using drill with DNSSEC trace

RDAP

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

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

Open in Browser View RDAP response directly

Registry Information

Active

TLD .review

Operator dot Review Limited

RDAP Server https://rdap.nic.review/ 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 .review compliance metrics programmatically via our REST API.

Quick Start

GET /any53/api/v1/compliance/review/

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

Example Response

{
  "tld": "review",
  "display_name": ".review",
  "operator": "dot Review Limited",
  "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.review/"
  },
  "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