.tz SLA Compliance

TLD SLA Compliance Metrics

Spec 10

DNS

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	100%	100%	85ms	286ms	50
7d	100%	100%	87ms	323ms	1400
30d	92.34%	92.34%	86ms	323ms	2094

RDAP

Period	Availability	RTT Compliance	RTT p50	RTT p95	Checks
24h	50.00%	50.00%	1014ms	2068ms	12
7d	41.22%	40.54%	1568ms	3648ms	148
30d	29.24%	28.39%	1203ms	5131ms	236

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%	124ms	130ms	8
7d	98.65%	127ms	258ms	222
30d	98.70%	126ms	255ms	307

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	99ms	5 minutes ago	local	NSID: dns-decix-dns01.nic.cz	OK
`DNS`	v6	40ms	5 minutes ago	local	NSID: dns-sixusa-dns01.nic.cz	OK
`DNSSEC`	v4	132ms	5 hours, 32 minutes ago	local	Key: 30234	OK
`DNSSEC`	v6	123ms	5 hours, 32 minutes ago	local	Key: 30234	OK
`RDAP`	v4	2693ms	1 hour, 7 minutes ago	local	TLS 1.2	OK
`RDAP`	v6	0.50ms	1 hour, 7 minutes ago	local	—	FAIL

RDAP HTTPS Timing

2693ms total

DNS Lookup

—

TCP Connect

283ms

TLS Handshake

745ms

Time to First Byte

2692ms

TLS 1.2 / TLS_ECDHE_RSA_WITH_AES_128_GCM_SHA256

Nameservers

10 IPs tested

Hostname	IP Address	AF
`fork.sth.dnsnode.net`	`77.72.229.254`	v4
`fork.sth.dnsnode.net`	`2a01:3f0:0:306::53`	v6
`ns.anycast.co.tz`	`204.61.216.15`	v4
`ns.anycast.co.tz`	`2001:500:14:6015:ad::1`	v6
`ns2.tznic.or.tz`	`196.216.162.67`	v4
`ns2.tznic.or.tz`	`2001:43f8:e0:1::67`	v6
`rip.psg.com`	`147.28.0.39`	v4
`rip.psg.com`	`2001:418:1::39`	v6
`tz-e.ns.nic.cz`	`185.43.134.11`	v4
`tz-e.ns.nic.cz`	`2001:148f:fffd::11`	v6

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

Test With Your Computer

DNS

dig @fork.sth.dnsnode.net tz. SOA +dnssec +nsid Query SOA with DNSSEC validation and NSID

drill -D tz. SOA @fork.sth.dnsnode.net Alternative using drill with DNSSEC trace

RDAP

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

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

Open in Browser View RDAP response directly

Registry Information

Active

TLD .tz

Operator Tanzania

RDAP Server https://whois.tznic.or.tz/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 .tz compliance metrics programmatically via our REST API.

Quick Start

GET /any53/api/v1/compliance/tz/

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

Example Response

{
  "tld": "tz",
  "display_name": ".tz",
  "operator": "Tanzania",
  "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://whois.tznic.or.tz/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