.booking

TLD SLA Compliance Monitoring

TLD SLA Compliance Metrics

Spec 10

DNS

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 7.0ms 201ms 144
7d 99.51% 99.51% 7.0ms 64ms 2460
30d 93.81% 93.81% 7.0ms 72ms 3331

RDAP (TCP)

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 72ms 98ms 2
7d 100% 100% 48ms 109ms 44
30d 100% 100% 43ms 98ms 54

EPP *

Period Availability RTT Compliance RTT p50 RTT p95 Checks TSLAC
24h 100% 100% 44ms 46ms 6
7d 100% 100% 44ms 47ms 112
30d 100% 100% 37ms 40ms 132

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 Status
24h 100% 32ms 33ms 4
7d 100% 34ms 39ms 212
30d 100% 34ms 42ms 302

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 TSLAC
DNS v4 11ms 16 minutes ago local NSID: Auth_Host3.Toronto_Node1 OK
DNS v6 11ms 16 minutes ago local NSID: Auth_Host3.Toronto_Node1 OK
DNSSEC v4 33ms 22 hours, 11 minutes ago local Key: 29245 OK
DNSSEC v6 33ms 22 hours, 11 minutes ago local Key: 29245 OK
EPP * v4 51ms 3 hours, 30 minutes ago local Tudor EPP (Mock) v2.0 OK
EPP * v6 46ms 3 hours, 30 minutes ago local Tudor EPP (Mock) v2.0 OK
RDAP TCP v4 99ms 1 hour, 59 minutes ago local — OK
RDAP TCP v6 73ms 1 hour, 59 minutes ago local — OK

RDAP HTTPS Timing

95ms total
DNS Lookup
—
TCP Connect
22ms
TLS Handshake
43ms
Time to First Byte
95ms

TLS 1.2 / TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

Nameservers

12 IPs tested
Hostname IP Address AF Status
a.nic.booking 37.209.192.9 v4
a.nic.booking 2001:dcd:1::9 v6
b.nic.booking 37.209.194.9 v4
b.nic.booking 2001:dcd:2::9 v6
c.nic.booking 37.209.196.9 v4
c.nic.booking 2001:dcd:3::9 v6
ns1.dns.nic.booking 156.154.144.27 v4
ns1.dns.nic.booking 2610:a1:1071::1b v6
ns2.dns.nic.booking 156.154.145.27 v4
ns2.dns.nic.booking 2610:a1:1072::1b v6
ns3.dns.nic.booking 156.154.159.27 v4
ns3.dns.nic.booking 2610:a1:1073::1b v6

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

Test With Your Computer

DNS

dig @a.nic.booking booking. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID
drill -D booking. SOA @a.nic.booking Alternative using drill with DNSSEC trace

RDAP

curl -sS "https://rdap.nic.booking/domain/nic.booking" | jq . Fetch RDAP JSON (positive lookup)
curl -I -sS "https://rdap.nic.booking/domain/nic.booking" Headers only (check TLS, timing)
Open in Browser View RDAP response directly

Registry Information

Active
TLD .booking
Operator Booking.com B.V.
RDAP Server https://rdap.nic.booking/ 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).
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 .booking compliance metrics programmatically via our REST API.

Quick Start

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

Example Response

{
  "tld": "booking",
  "display_name": ".booking",
  "operator": "Booking.com B.V.",
  "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.booking/"
  },
  "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

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