.post SLA Compliance

TLD SLA Compliance Metrics

Spec 10

DNS

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	70ms	123ms	96
7d	90.12%	90.12%	64ms	139ms	966
30d	98.73%	98.73%	69ms	193ms	7566

RDAP

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	98ms	158ms	20
7d	87.50%	87.50%	293ms	549ms	96
30d	97.52%	97.52%	245ms	365ms	644

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	156ms	20
7d	90.63%	130ms	347ms	96
30d	97.83%	185ms	247ms	646

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	10.0ms	5 hours, 54 minutes ago	local	NSID: YYZ3	OK
`DNS`	v6	11ms	204 days, 19 hours ago	local	NSID: YYZ3	OK
`DNSSEC`	v4	141ms	1 hour, 15 minutes ago	local	Key: 35725	OK
`DNSSEC`	v6	156ms	1 hour, 15 minutes ago	local	Key: 35725	OK
`RDAP`	v4	96ms	1 hour, 14 minutes ago	local	TLS 1.3	OK
`RDAP`	v6	93ms	1 hour, 14 minutes ago	local	TLS 1.3	OK

RDAP HTTPS Timing

93ms total

DNS Lookup

0.32ms

TCP Connect

1.8ms

TLS Handshake

12ms

Time to First Byte

93ms

TLS 1.3 / TLS_AES_128_GCM_SHA256

Nameservers

6 IPs tested

Hostname	IP Address	AF	ASN	RPKI
`v0n0.nic.post`	`65.22.0.1`	v4	—	—
`v0n1.nic.post`	`65.22.1.1`	v4	—	—
`v0n2.nic.post`	`65.22.2.1`	v4	—	—
`v0n3.nic.post`	`65.22.3.1`	v4	—	—
`v2n0.nic.post`	`65.22.4.1`	v4	—	—
`v2n1.nic.post`	`65.22.5.1`	v4	—	—

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

Test With Your Computer

DNS

dig @v0n0.nic.post post. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID

drill -D post. SOA @v0n0.nic.post Alternative using drill with DNSSEC trace

RDAP

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

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

Open in Browser View RDAP response directly

Registry Information

Active

TLD .post

Operator Universal Postal Union

RDAP Server https://rdap.identitydigital.services/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 .post compliance metrics programmatically via our REST API.

Quick Start

GET /any53/api/v1/compliance/post/

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

Example Response

{
  "tld": "post",
  "display_name": ".post",
  "operator": "Universal Postal Union",
  "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.identitydigital.services/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