.sncf SLA Compliance

TLD SLA Compliance Metrics

Spec 10

DNS

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	20ms	56ms	204
7d	100%	100%	20ms	54ms	1170
30d	100%	100%	21ms	1242ms	6501

RDAP

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	360ms	408ms	40
7d	100%	100%	353ms	394ms	240
30d	99.85%	99.85%	349ms	392ms	1336

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	47ms	64
7d	100%	35ms	36ms	360
30d	100%	36ms	38ms	2012

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	11 minutes ago	local	NSID: 2.ord.pch	OK
`DNS`	v6	1.4ms	55 days, 4 hours ago	local	NSID: 2.ord.pch	OK
`DNSSEC`	v4	36ms	48 minutes ago	local	Key: 55518	OK
`DNSSEC`	v6	35ms	48 minutes ago	local	Key: 55518	OK
`RDAP`	v4	385ms	1 hour, 5 minutes ago	local	TLS 1.3	OK
`RDAP`	v6	370ms	1 hour, 5 minutes ago	local	TLS 1.3	OK

RDAP HTTPS Timing

370ms total

DNS Lookup

—

TCP Connect

107ms

TLS Handshake

124ms

Time to First Byte

370ms

TLS 1.3 / TLS_AES_128_GCM_SHA256

Nameservers

3 IPs tested

Hostname	IP Address	AF	ASN
`d.nic.fr`	`194.0.9.1`	v4	AS2484
`f.ext.nic.fr`	`194.146.106.46`	v4	AS8674
`g.ext.nic.fr`	`194.0.36.1`	v4	AS42

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

Test With Your Computer

DNS

dig @d.nic.fr sncf. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID

drill -D sncf. SOA @d.nic.fr Alternative using drill with DNSSEC trace

RDAP

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

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

Open in Browser View RDAP response directly

Registry Information

Active

TLD .sncf

Operator Société Nationale SNCF

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

Quick Start

GET /any53/api/v1/compliance/sncf/

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

Example Response

{
  "tld": "sncf",
  "display_name": ".sncf",
  "operator": "Société Nationale SNCF",
  "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.sncf/"
  },
  "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