.delta SLA Compliance

TLD SLA Compliance Metrics

Spec 10

DNS

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	72ms	123ms	88
7d	92.44%	92.44%	66ms	123ms	476
30d	98.51%	98.51%	71ms	192ms	2684

RDAP

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	98ms	148ms	40
7d	93.33%	93.33%	222ms	782ms	240
30d	98.81%	98.81%	180ms	289ms	1344

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	44
7d	92.86%	132ms	308ms	210
30d	98.47%	140ms	274ms	1310

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	122ms	3 minutes ago	local	NSID: app12.nrt1.hosts.meta.r…	OK
`DNS`	v6	139ms	200 days, 16 hours ago	local	NSID: app30.nrt1.hosts.meta.r…	OK
`DNSSEC`	v4	142ms	57 minutes ago	local	Key: 64069	OK
`DNSSEC`	v6	157ms	57 minutes ago	local	Key: 64069	OK
`RDAP`	v4	107ms	30 minutes ago	local	TLS 1.3	OK
`RDAP`	v6	98ms	29 minutes ago	local	TLS 1.3	OK

RDAP HTTPS Timing

98ms total

DNS Lookup

0.44ms

TCP Connect

1.5ms

TLS Handshake

13ms

Time to First Byte

98ms

TLS 1.3 / TLS_AES_128_GCM_SHA256

Nameservers

4 IPs tested

Hostname	IP Address	AF	ASN	RPKI
`a0.nic.delta`	`65.22.224.25`	v4	—	—
`a2.nic.delta`	`65.22.227.25`	v4	—	—
`b0.nic.delta`	`65.22.225.25`	v4	—	—
`c0.nic.delta`	`65.22.226.25`	v4	—	—

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

Test With Your Computer

DNS

dig @a0.nic.delta delta. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID

drill -D delta. SOA @a0.nic.delta Alternative using drill with DNSSEC trace

RDAP

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

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

Open in Browser View RDAP response directly

Registry Information

Active

TLD .delta

Operator Delta Air Lines, Inc.

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 .delta compliance metrics programmatically via our REST API.

Quick Start

GET /any53/api/v1/compliance/delta/

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

Example Response

{
  "tld": "delta",
  "display_name": ".delta",
  "operator": "Delta Air Lines, Inc.",
  "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