yyczo.com — DNS Report

Registrar	INWX GmbH
Registrar ID	1420
Registry	Verisign
Registry ID	2806033539_DOMAIN_COM-VRSN
Created	Aug 15, 2023
Updated	Aug 16, 2025
Expires	Aug 15, 2026 (4 days left)
DNSSEC	✗ Unsigned
Status	client transfer prohibited
RDAP Nameservers	ns-1238.awsdns-26.org ns-1883.awsdns-43.co.uk ns-23.awsdns-02.com ns-667.awsdns-19.net

SOA Records (1)

Name	Value	TTL
yyczo.com	ns-23.awsdns-02.com awsdns-hostmaster.amazon.com 1 7200 900 1209600 86400	900

NS Records (4)

Name	Value	TTL
yyczo.com	ns-1238.awsdns-26.org	172800
yyczo.com	ns-1883.awsdns-43.co.uk	172800
yyczo.com	ns-23.awsdns-02.com	172800
yyczo.com	ns-667.awsdns-19.net	172800

A Records (1)

Name	Value	TTL
yyczo.com	34.149.74.10	30

Nameserver	IPv4	IPv6	Glue
ns-1883.awsdns-43.co.uk	205.251.199.91	2600:9000:5307:5b00::1	No
ns-1238.awsdns-26.org	205.251.196.214	2600:9000:5304:d600::1	No
ns-667.awsdns-19.net	205.251.194.155	2600:9000:5302:9b00::1	No
ns-23.awsdns-02.com	205.251.192.23	2600:9000:5300:1700::1	Yes

✓	Nameservers Listed at Parent	The parent TLD nameserver has 4 nameserver(s) listed for yyczo.com. ns-23.awsdns-02.com ns-667.awsdns-19.net ns-1238.awsdns-26.org ns-1883.awsdns-43.co.uk
✓	Minimum Nameserver Count	4 nameservers found. Good redundancy.
✓	Public IP: ns-1883.awsdns-43.co.uk	Nameserver ns-1883.awsdns-43.co.uk has a public IP address.
✓	Public IP: ns-1238.awsdns-26.org	Nameserver ns-1238.awsdns-26.org has a public IP address.
✓	Public IP: ns-667.awsdns-19.net	Nameserver ns-667.awsdns-19.net has a public IP address.
✓	Glue Record: ns-23.awsdns-02.com	Glue record found for ns-23.awsdns-02.com: 205.251.192.23, 2600:9000:5300:1700::1
✓	Public IP: ns-23.awsdns-02.com	Nameserver ns-23.awsdns-02.com has a public IP address.
✓	Parent/Auth NS Consistency	The nameservers listed at the parent match those returned by the authoritative nameservers.

Nameserver	UDP	TCP	Auth	Recursion	IPv6	Latency
ns-1238.awsdns-26.org	✓	✓	✓	Closed	✓	20ms
ns-1883.awsdns-43.co.uk	✓	✓	✓	Closed	✓	21ms
ns-23.awsdns-02.com	✓	✓	✓	Closed	✓	22ms
ns-667.awsdns-19.net	✓	✓	✓	Closed	✓	20ms

✓	Authoritative Nameservers Found	Found 4 authoritative nameserver(s): ns-23.awsdns-02.com, ns-667.awsdns-19.net, ns-1238.awsdns-26.org, ns-1883.awsdns-43.co.uk
✓	All Nameservers Respond	All authoritative nameservers are responding to DNS queries.
✓	UDP DNS (Port 53)	At least one nameserver is responding to UDP DNS queries on port 53.
✓	TCP DNS (Port 53)	TCP DNS queries are supported. Required for large responses and DNSSEC.
✓	Authoritative Response	At least one nameserver returns an authoritative (AA) response for the zone.
✓	Open Recursion	Nameservers do not appear to answer recursive queries from outside. Good.
✓	Public IP Addresses	All nameservers have publicly routable IP addresses.
✓	IPv6 Support	At least one nameserver has an IPv6 (AAAA) address.
✓	NS Record Consistency	All authoritative nameservers return identical NS records.
✓	Multiple Network Diversity	Nameservers appear to be on different subnets/networks. Good resilience.

Primary NS (MNAME)	ns-23.awsdns-02.com
Email (RNAME)	awsdns-hostmaster.amazon.com
Serial	1
Refresh	7200 (2 hours)
Retry	900 (15 min)
Expire	1209600 (14 days)
Minimum TTL	86400 (1 day)

✓	SOA Record Exists	SOA record found for yyczo.com.
✓	SOA MNAME	SOA MNAME (ns-23.awsdns-02.com) is listed as an authoritative nameserver.
✓	SOA RNAME	SOA contact email: awsdns-hostmaster@amazon.com
ℹ	SOA Serial Format	SOA serial is 1. The recommended format is YYYYMMDDNN (e.g., 2024010101).
✓	SOA Serial Consistency	All authoritative nameservers return the same SOA serial number.
✓	SOA Refresh	SOA Refresh is 7200 seconds (2h). Reasonable value.
✓	SOA Retry	SOA Retry is 900 seconds.
✓	SOA Expire	SOA Expire is 1209600 seconds (14 days). Reasonable value.
✓	SOA Minimum TTL	SOA Minimum TTL (negative caching) is 86400 seconds.

No MX records found. This domain cannot receive email.

ℹ

MX Records

No MX records found for yyczo.com. This domain cannot receive email.

No WWW records found.

⚠

WWW Record

No A, AAAA, or CNAME record found for www.yyczo.com. Visitors to www.yyczo.com will receive an error.

Enabled

No

Chain of Trust

Level	DS	DNSKEY	RRSIG	Status
.	—	✓	✓	PASS
com	✓	✓	✓	PASS
yyczo.com	—	—	—	INFO

ℹ

DNSSEC Status

DNSSEC is not enabled for yyczo.com. No DS or DNSKEY records found.

SPF (Sender Policy Framework)

No SPF record found. Your domain may be vulnerable to email spoofing.

DMARC (Domain-based Message Authentication)

No DMARC record found. Consider adding a DMARC policy to protect against email spoofing.

CAA (Certificate Authority Authorization)

No CAA records found. Any certificate authority can issue SSL certificates for this domain.

⚠	SPF Record	No SPF record found. SPF helps prevent email spoofing by specifying authorized mail servers.
⚠	DMARC Record	No DMARC record found at _dmarc.[domain]. DMARC helps prevent email spoofing and phishing.
ℹ	CAA Records	No CAA records found for yyczo.com. CAA records specify which certificate authorities may issue SSL/TLS certificates for this domain.

Status	Resolver	Location	Result	Latency
✓	Cloudflare (1.1.1.1)	US (Cloudflare)	34.149.74.10	15ms
✓	Google Public DNS (8.8.8.8)	US (Google)	34.149.74.10	28ms
✓	Cloudflare 2 (1.0.0.1)	US (Cloudflare)	34.149.74.10	29ms
✓	Comodo Secure (8.26.56.26)	US (Comodo)	34.149.74.10	32ms
✓	Google Public DNS 2 (8.8.4.4)	US (Google)	34.149.74.10	39ms
✓	Quad9 (9.9.9.9)	US (Quad9)	34.149.74.10	33ms
✓	OpenDNS 2 (208.67.220.220)	US (OpenDNS)	34.149.74.10	29ms
✓	OpenDNS (208.67.222.222)	US (OpenDNS)	34.149.74.10	30ms
✓	Verisign (64.6.64.6)	US (Verisign)	34.149.74.10	41ms
✓	Yandex.DNS (77.88.8.8)	RU (Yandex)	185.216.195.76, 185.216.195.77	331ms