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15
Total
45
DNS
0
Email
0
Security
0
Network
20
Availability
Domainjs.cn
IPv40
IPv60
MX records0
StatusActive
Domain technical report

js.cn

js.cn

Generated: 2026-08-11T03:49:07-05:00 · Cached result

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IPv40
IPv60
MX0
NS6

DiagnosticsMain findings and recommendations

!
IPv4 (A)0 / 30 pts · Dns

0 IPv4 address(es) detected.

!
IPv6 (AAAA)0 / 10 pts · Dns

0 IPv6 address(es) detected.

✓
Name server redundancy20 / 20 pts · Dns

6 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 propagation0 / 10 pts · Dns

Agreement between public resolvers.

!
MX records0 / 20 pts · Mail

0 MX record(s).

!
SPF0 / 25 pts · Mail

SPF policy not found.

!
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 certificate0 / 55 pts · Security

No valid certificate was retrieved.

!
Certificate lifetime0 / 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 DNS0 / 30 pts · Network

PTR not detected.

!
IPv4 diversity0 / 35 pts · Network

Two or more IPv4 addresses receive full points.

!
IPv6 connectivity0 / 35 pts · Network

AAAA availability.

!
DNS resolution0 / 40 pts · Availability

At least one address family must resolve.

!
HTTP response0 / 40 pts · Availability

No successful HTTP response.

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

0 record(s)
—

Not configured

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

0 record(s)
—

Not configured

TXT

0 record(s)
—

Not configured

NS

6 record(s)
e.dns.cn.
b.dns.cn.
d.dns.cn.
a.dns.cn.
c.dns.cn.
cns.cernet.net.

SOA

1 record(s)
a.dns.cn. root.cnnic.cn. 2027255829 7200 3600 2419200 21600

CAA

0 record(s)
—

Not configured

DS

1 record(s)
45007 8 2 63D4E7CFB52FC6F5236DA0521BF7478CA3CE0FFF51CCE61108689F02 2874922F

DNSKEY

2 record(s)
256 3 8 AwEAAbupaQjeVyRhz+jIO06x0V083i/qPDBIln5Hl5Y5EWeHIrbGz6cO AfihHqmZ2I3xLVTH8dLoyDK26BeB8L55NGuPAZZW8DHYfeWT6rJMNSaT ynQyAM3gscg1pTxglrEZGCaB5DS2BU6xAtwtcd+yc66k7+RM73say+o4 m+aRk6NT
257 3 8 AwEAAcssnXMzAHbVEGuX/B+wCsz9wC0bl/7o4ZT1O+m96eL4dwifw7fo mN6c9IyjnRCwwQDHL/LbH7xO4J5jxK0Q3pyN3sCv4YFNMPHeNsh+PU9C ZZDM3WW5898aVGwcz9Vvpac2BWEUpg+ZU0ik2Dt0ckTjJIqONS0SqU9i N042+QNturk4jk+dyhximIw2W+kQBPJ6n+4w4AFNtWK2G+w4w6w+sqvo hD7U18obbRDNfDWF+VMH5kVHn3q5IkUpE5t3Q4Q12OpIm53Ydng719xQ hwKeyy3I62Q9dOSlh0Hy3b6fDyvF4Fpx3lz/I5I0P6fHq7B5UN7Y6Z+a OEbA+Gv1Vas=

RRSIG

3 record(s)
SOA 8 2 86400 20260910084023 20260811074023 42336 js.cn. LVB+JDASTF9uDCUHBHvcu1NF3ZydW5WBXqiQ4b+Ny6puXtJkox1kZtQS rG6ZpFC1h4WP0OO3tMJVKunymfBkOABG5C2TErUZR10ACoSsa/lPYLi3 BtsCXsA6ypTK4e7vkKinVJY9E9v+CqVoVDBjSGaEJ/LlvSEAZhLeOMbj DVM=
NS 8 2 86400 20260903121155 20260804111155 42336 js.cn. TdMO8fL2tHc9LVQvoVfYMA6Vrkb6Pmg6bnpjwrH51gHdeSwUXGbEb/0S azlHAlJqmNP0WexAE7LiVyAT96UG0OHS7E3bkiZMjOjVYjN7XHKAkQ0j ICuPnlBTiJrDHmNpaLgeMe9mTAvHMVnSL2FIyERuGerbDc82P4LCViVW Wg0=
DS 8 2 86400 20260903120842 20260804110842 55980 cn. nHJr0bE+kzSwUEhWv7ZFacYoeisc5PPhmc2GahisTzel7lxQLRCn8Kqh NYivUJNsG41wAGt0lvvmR9ZQsXgygbW2ZQpkknx8EHdLnCm/N/STjGYU cC7U1PQ7yn3847JodAie7RQIyP2biEICsRlp+A/8nGEac0uEsbtXPWJW WqY=

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

Not configured
—

Not configured

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

No data
Title
Description
Final URL
https://js.cn/
HTTP status

HTTP

Status
Final URL
https://js.cn/
Version
0
Server
X-Powered-By

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Unavailable
Available
No
Issuer
CN
Valid from
Valid until
Days remaining
Protocol
Cipher

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

Review
!
Differences detected

5 public resolvers queried.

ResolverServerResultLatency
Google
8.8.8.8
203,55 ms
Cloudflare
1.1.1.1
35,05 ms
Quad9
9.9.9.9
28,19 ms
OpenDNS
208.67.222.222
31,35 ms
AdGuard
94.140.14.14
259,61 ms

IP, geolocation and ASNAssociated network information

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

js.cn

Port 25: Closed/unreachable - 1.3 ms - 
Port 465: Closed/unreachable - 1.3 ms - 
Port 587: Closed/unreachable - 1.3 ms -

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