sina.com.cn
is an active domain
Related pages
Explore similar reports and related email checks for sina.com.cn.
Email deliverability checks
Overview
sina.com.cn is currently active and operational. This domain has working DNS records and responds to HTTP/HTTPS requests. The domain is properly configured and accessible on the internet.
This report focuses on signals that affect crawlability and visibility in Google: DNS configuration, HTTP/HTTPS availability, SSL/TLS, security headers, and technical SEO checks.
How to read DNS, MX, NS
A records show where the site is hosted. Multiple A records can mean load-balancing or CDNs. MX records indicate which mail servers accept mail for the domain; missing MX often blocks inbound email. NS records list authoritative nameservers — mismatches or slow NS can cause resolution errors.
SSL/TLS interpretation
The SSL issuer and validity period show whether browsers will trust the site. Expired or self-signed certs trigger warnings. If HTTP responds but HTTPS fails, redirect traffic to HTTPS and renew certificates (Let's Encrypt or commercial CA) to avoid SEO and security penalties.
Email security (SPF/DMARC/DKIM)
SPF lists IPs/hosts allowed to send mail for the domain. DMARC enforces how receivers treat mail that fails SPF/DKIM and where to send reports. Missing or relaxed DMARC makes phishing easier. Align SPF/DKIM with your sending services and move DMARC to quarantine or reject once passes are confirmed.
HTTP status & crawlability
Stable 200/301 responses indicate healthy routing. 4xx/5xx codes block indexing and often signal outages or firewall blocks. Ensure redirects are single-hop, set canonical tags, and keep robots meta/tag rules consistent with your indexing goals.
Frequently Asked Questions
What does domain status mean?
Domain status indicates the current operational state. Active means the domain is working and accessible. Inactive means the domain is registered but not responding. Deleted means the domain appears unregistered or expired.
Why should I check domain information?
Checking domain information helps verify ownership, track expiration dates, identify security issues, and ensure proper DNS configuration. This is essential for webmasters, security teams, and domain investors.
How can I use this information?
Use this data to verify domain configuration, check SSL certificate validity, monitor email security settings, and research domain history before making decisions about domain management or investment.
Domain Information
- Flagged on
- Dec 29, 2025 (1 month ago)
- A Records
-
- 36.51.254.91
- MX Records
-
- freemx1.sinamail.sina.com.cn. (priority: 10)
- freemx2.sinamail.sina.com.cn. (priority: 10)
- freemx3.sinamail.sina.com.cn. (priority: 10)
- Nameservers
-
- ns2.sina.com.cn
- ns4.sina.com.cn
- ns3.sina.com.cn
- ns1.sina.com.cn
Google / Technical SEO
- Title
- 新浪网 3 chars
- Meta 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。 113 chars
- Canonical
- Missing
- Robots Meta
- -
- H1
- 0
- Structured Data (JSON-LD)
- Missing
- Mobile Viewport
- Missing
Top Recommendations
- Medium Title tag is too short (3 characters). Recommended: 30-60 characters.
- Low Meta description is too short (113 characters). Recommended: 120-160 characters.
- High H1 heading is missing.
- Medium Canonical URL is missing.
- Low Open Graph title is missing.
Network / Hosting
- HTTP Status
- 200
- Server
- Tengine
- IP Addresses
-
36.51.254.91
Security / SSL
- SSL Issuer
- Not available
- Valid From
- Not available
- Valid To
- Not available
HTTP Security Headers
- HTTP Version
- HTTP/1.1
- X-Frame-Options
- Not Found
- X-Content-Type-Options
- Not Found
- Strict-Transport-Security (HSTS)
- Not Found
- Content-Security-Policy (CSP)
- Not Found
- Referrer-Policy
- Not Found
- X-XSS-Protection
- Not Found
Cookies Privacy & Security
- Cookies
- No cookies detected
Technical SEO Analysis
- Title Tag
-
3 characters
新浪网
- Meta Description
-
113 characters
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。
- H1 Headings
- 0 found
- Canonical URL
- Missing
- Viewport Meta
- Missing
- Charset
- Missing
- Language Attribute
- Missing
- Images Alt Attributes
- 34/83 with alt
- Page Size
- 393.99 KB
Improvement Recommendations
Title tag is too short (3 characters). Recommended: 30-60 characters.
Increase the title tag length to 30-60 characters for better visibility in search engines
Meta description is too short (113 characters). Recommended: 120-160 characters.
Increase the meta description length to 120-160 characters for better display in search snippets
H1 heading is missing.
Add one H1 heading to the page for better SEO optimization
Canonical URL is missing.
Add <link rel="canonical" href="URL"> to prevent content duplication
Open Graph title is missing.
Add <meta property="og:title" content="Title"> for better display in social networks
Twitter Card is missing.
Add Twitter Card meta tags for better display in Twitter
Viewport meta tag is missing.
Add <meta name="viewport" content="width=device-width, initial-scale=1.0"> for mobile responsiveness
Charset is not specified.
Add <meta charset="UTF-8"> in the <head> section
Lang attribute is missing in the <html> tag.
Add lang="en" or another language attribute to the <html> tag
Structured data (JSON-LD) is missing.
Add Schema.org structured data for better content understanding by search engines
49 images without alt attributes.
Add alt attributes to all images to improve accessibility and SEO
Important: The recommendations provided are general advice for improving Technical SEO and are not a call to action. Every site is unique, and some recommendations may not be suitable for your specific case. Always consult with an SEO specialist before making significant changes.
Email Security
- SPF Record
- Found
- DMARC Record
- Not Found
- DKIM Record
- Not Found
- MX Records
- Found
- MTA-STS
- Not Found
- TLS-RPT
- Not Found
- BIMI
- Not Found
Quick Status
Domain Status
Active
HTTP Status
200
Topical Similarity and Theme Detection
?Important Notice
This domain analysis is provided for informational purposes only. Domain information may change at any time, and we cannot guarantee the accuracy or completeness of the data presented. Always verify critical information with your domain registrar or hosting provider. This service does not provide legal advice or guarantee domain availability.