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71
Total
85
DNS
45
Email
65
Security
50
Network
100
Availability
Domaincn.com
IPv41
IPv60
MX records1
StatusActive
Domain technical report

.CN.COM | The Unrestricted Domain for Engaging with China

cn.com

Grow your online presence in China with .CN.COM — an open and globally recognized domain. No compliance hurdles, just seamless access to one of the world’s biggest digital economies. Register now!

Generated: 2026-08-08T19:46:55-05:00 · Cached result

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IPv41
IPv60
MX1
NS4

DiagnosticsMain findings and recommendations

✓
IPv4 (A)30 / 30 pts · Dns

1 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

4 NS record(s); 2 or more required.

✓
SOA record10 / 10 pts · Dns

Authoritative zone record.

✓
DNSSEC chain15 / 15 pts · Dns

DS and DNSKEY detected.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

1 MX record(s).

✓
SPF25 / 25 pts · Mail

SPF policy published.

!
DMARC0 / 25 pts · Mail

DMARC policy not found.

!
DKIM0 / 20 pts · Mail

No tested DKIM selector responded.

!
MTA-STS0 / 5 pts · Mail

Mail transport policy.

!
TLS-RPT0 / 5 pts · Mail

TLS reporting policy.

✓
Valid TLS certificate55 / 55 pts · Security

73 day(s) remaining.

✓
Certificate lifetime10 / 10 pts · Security

Full points require at least 30 days remaining.

!
HTTP security headers0 / 35 pts · Security

0 of 9 evaluated headers detected.

✓
PTR reverse DNS30 / 30 pts · Network

PTR: ec2-54-153-56-183.us-west-1.compute.amazonaws.com

i
IPv4 diversity20 / 35 pts · Network

Two or more IPv4 addresses receive full points.

!
IPv6 connectivity0 / 35 pts · Network

AAAA availability.

✓
DNS resolution40 / 40 pts · Availability

At least one address family must resolve.

✓
HTTP response40 / 40 pts · Availability

HTTP/1.1 200 OK

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
54.153.56.183

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

1 record(s)
0 .

TXT

1 record(s)
"v=spf1 -all"

NS

4 record(s)
ns3.centralnic.net.
ns2.centralnic.net.
ns1.centralnic.net.
ns4.centralnic.net.

SOA

1 record(s)
ns0.centralnic.net. hostmaster.centralnic.net. 3000621193 900 1800 6048000 3600

CAA

0 record(s)
—

Not configured

DS

3 record(s)
13973 7 1 BEBAB920F5F5F82A3B8B4E0A34ADD452F0422F27
13973 7 2 A9A6A430B95EC14739F9BAADB5CA82D48F0959F34FEECA8D2B5F0794 F8F20A00
59496 7 2 7BABA88AB74003B51B87CFD567771D32DA0762C5AAA02FDD5316AA5C F91B81CD

DNSKEY

3 record(s)
256 3 7 AwEAAdIOAOJuWd8fOu5tYVelZJ82UKGjXllRkDkqjUJQJ5HCESFgxxfJ YG4xZ1bUKwV5I5BmdvSzQsrhItRNS66rZIRMr9hGND/vVoBTsrtAIL3w JkDx2uOmpDfKvVmg/+xAAWA7dQmsRMhHtqT+5o4q3Daywr8SxZm7GsFF qjgLY4kr
257 3 7 AwEAAabyyIjwh0rS2VQFoYJ2PcyhHflmxXlYHQBMLZPi/0KISPGLt1hY BFX2TDlv/rdmD/Cc1ZG59sS1GMH1Q+DuFpl3AwXVecvTg6TcE9YWE3S1 AEYcJWhGFCJgWXu2nVvt1FpRLWrZaBOsydP3++DeWRgjMeAJrkIiZGa7 /E0t0XyD8Cgc7tU4mcqyDuhR45JO6vJA9RsvYvyT/hhDBKoaHwBrq4bj 4XFRV13vVbaPSo0fHGts54U3n1RH5vR4naMJvwIbIsOrMBtzlass3pHL VRYkaIHztr5XYEXDCJKQbb00H+Llh6iO5uVInjOU0MLLzNWEB95rouqO gLDb8qGJaa8=
256 3 7 AwEAAcAUOiyp0opa5JUSUf6enplgZ5v2JPgCdWDsS2WK+rrPYEXq+z/p TLVnwC0upPEis6ObuG58hn5mgtBdOEi+vtQA/xYOceXzCv57mAbN0kXi CtAgpqsznW/EI7tXXv2sG4HII0MqAHyfemiIVybqrjfZlf+2rFyoOZws IEafrsz1

RRSIG

3 record(s)
NS 7 2 3600 20260822095425 20260723082425 46550 cn.com. VZe/bejQnN5E7cDn/6ArDtmFrTCXxdhOqRfzggHC+xDKha5X4GEqrsT6 08in3kbkdQhPBa90fSYUoShbVogijZ8kbFq3MakS3eHC/+Tmh12O1EVr K0bAIU1zO/b9S2mbHMpcoBVE9MF8LUt7JodH4/Xt4swXVY+Us8GAYPj1 iYU=
TXT 7 2 900 20260822095425 20260723082425 46550 cn.com. ZRpOO48B/S3kZSOPAjI7ZKFUpcxiiSYxjudWLbwWzrq6ythW741aWhzf /Tl68Fo/JWewj4nUw1hxHMSRIX/bTK7PL3ICFQmR68+YuoOt/lCbBXn5 UKNX7NzXI93rqtwnSxSQxn0+GQbzl2U5Y40RmuIY+sgpRXUn4oVB0XoV JjU=
DS 13 2 86400 20260813020052 20260806005052 41446 com. 4WnLtV/mjkr2vyUr3267XQVykWshBLIeldOvI6VHkLLHcjhioqMUZjpv 1jV+iTklQzFIwE2a19iTlardBkVoEg==

NSEC

0 record(s)
—

Not configured

NSEC3

0 record(s)
—

Not configured

SRV

0 record(s)
—

Not configured

NAPTR

0 record(s)
—

Not configured

TLSA

0 record(s)
—

Not configured

SSHFP

0 record(s)
—

Not configured

SPF

Configured
v=spf1 -all

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
.CN.COM | The Unrestricted Domain for Engaging with China
Description
Grow your online presence in China with .CN.COM — an open and globally recognized domain. No compliance hurdles, just seamless access to one of the world’s biggest digital economies. Register now!
Final URL
https://cn.com/
HTTP status
200

HTTP

Status
HTTP/1.1 200 OK
Final URL
https://cn.com/
Version
2
Server
nginx
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
Let's Encrypt
CN
cn.com
Valid from
2026-07-23T04:46:56-05:00
Valid until
2026-10-21T04:46:55-05:00
Days remaining
73
Protocol
TLSv1.3
Cipher
TLS_AES_256_GCM_SHA384

Security headers

0 active
—
HSTSNot detected
—
Content Security PolicyNot detected
—
X-Content-Type-OptionsNot detected
—
X-Frame-OptionsNot detected
—
Referrer PolicyNot detected
—
Permissions PolicyNot detected
—
Cross-Origin-Opener-PolicyNot detected
—
Cross-Origin-Embedder-PolicyNot detected
—
Cross-Origin-Resource-PolicyNot detected

DNS propagationComparison across public resolvers

Public resolver comparison

Consistent
✓
Consistent propagation

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
54.153.56.183
51,48 ms
Cloudflare
1.1.1.1
54.153.56.183
312,58 ms
Quad9
9.9.9.9
54.153.56.183
159,85 ms
OpenDNS
208.67.222.222
54.153.56.183
91,50 ms
AdGuard
94.140.14.14
54.153.56.183
68,79 ms

IP, geolocation and ASNAssociated network information

54.153.56.183

No data
success
No
country
region
city
asn
organization
isp

Visitor information

Visitor
ip
216.73.217.62
reverse
country
country_code
region
city
latitude
longitude
isp
organization
asn
timezone
browser
Other
os
Other
language
user_agent
Mozilla/5.0 AppleWebKit/537.36 (KHTML, like Gecko; compatible; ClaudeBot/1.0; +claudebot@anthropic.com)
is_bot
Yes
cloudflare
No

SMTPEmail port connectivity

cn.com

Port 25: Closed/unreachable - 0.8 ms - 
Port 465: Closed/unreachable - 4044.7 ms - 
Port 587: Closed/unreachable - 4020.8 ms -

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