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65
Total
70
DNS
45
Email
65
Security
20
Network
100
Availability
Domainsina.com.cn
IPv41
IPv60
MX records3
StatusActive
Domain technical report

新浪网

sina.com.cn

新浪网为全球用户24小时提供全面及时的中文资讯，内容覆盖国内外突发新闻事件、体坛赛事、娱乐时尚、产业资讯、实用信息等，设有新闻、体育、娱乐、财经、科技、房产、汽车等30多个内容频道，同时开设博客、视频、论坛等自由互动交流空间。

Generated: 2026-08-08T17:37:15-05:00 · Cached result

JSONCSVPDFVisit site
IPv41
IPv60
MX3
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 chain0 / 15 pts · Dns

Both DS and DNSKEY are required.

!
CAA policy0 / 5 pts · Dns

Certificate authority restriction.

✓
DNS propagation10 / 10 pts · Dns

Agreement between public resolvers.

✓
MX records20 / 20 pts · Mail

3 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

144 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 DNS0 / 30 pts · Network

PTR not detected.

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/2 200

✓
HTTPS final URL20 / 20 pts · Availability

Final URL uses HTTPS.

DNS and emailPublished records and email configuration

A

1 record(s)
36.51.254.91

AAAA

0 record(s)
—

Not configured

CNAME

0 record(s)
—

Not configured

MX

3 record(s)
10 freemx2.sinamail.sina.com.cn.
10 freemx1.sinamail.sina.com.cn.
10 freemx3.sinamail.sina.com.cn.

TXT

1 record(s)
"v=spf1 include:spf.sinamail.sina.com.cn -all"

NS

4 record(s)
ns4.sina.com.cn.
ns2.sina.com.cn.
ns3.sina.com.cn.
ns1.sina.com.cn.

SOA

1 record(s)
ns1.sina.com.cn. zhihao.staff.sina.com.cn. 5 1800 600 604801 600

CAA

0 record(s)
—

Not configured

DS

0 record(s)
—

Not configured

DNSKEY

0 record(s)
—

Not configured

RRSIG

1 record(s)
;; communications error to 69.64.44.20#53: timed out

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 include:spf.sinamail.sina.com.cn -all

DMARC

Not configured
—

Not configured

DKIM

Not found
—

Not configured

Analyzed webpageMetadata and HTTP response

Title and description

Extracted
Title
新浪网
Description
新浪网为全球用户24小时提供全面及时的中文资讯，内容覆盖国内外突发新闻事件、体坛赛事、娱乐时尚、产业资讯、实用信息等，设有新闻、体育、娱乐、财经、科技、房产、汽车等30多个内容频道，同时开设博客、视频、论坛等自由互动交流空间。
Final URL
https://www.sina.com.cn/
HTTP status
200

HTTP

Status
HTTP/2 200
Final URL
https://www.sina.com.cn/
Version
3
Server
Tengine
X-Powered-By
shci_v1.13

SSL and HTTP securityCertificate, protocol and security headers

SSL certificate

Available
Available
Yes
Issuer
DigiCert, Inc.
CN
sina.com
Valid from
2025-12-01T18:00:00-06:00
Valid until
2026-12-30T17:59:59-06:00
Days remaining
144
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
36.51.254.91
283,66 ms
Cloudflare
1.1.1.1
36.51.254.91
234,99 ms
Quad9
9.9.9.9
36.51.254.91
240,88 ms
OpenDNS
208.67.222.222
36.51.254.91
219,66 ms
AdGuard
94.140.14.14
36.51.254.91
314,68 ms

IP, geolocation and ASNAssociated network information

36.51.254.91

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

freemx2.sinamail.sina.com.cn

Port 25: Closed/unreachable - 208.9 ms - 
Port 465: Closed/unreachable - 4015.1 ms - 
Port 587: Closed/unreachable - 4021 ms -

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