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coremail.cn

Coremail邮件系统_企业邮箱_邮件网关_10亿用户信赖的邮件服务器系统

Last scanned Jul 26, 2026, 5:18 AM

70

Overall score

Fair

Summary

Coremail是国内头部电子邮件产品与解决方案提供商，全面国产化适配，产品涵盖信创邮件系统、信创云企业邮箱、邮件安全网关等，可为各行业提供更加安全、高效、��… This website uses Nginx. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance fair (70/100). Top issue: Title longer than 60 characters.

Coremail是国内头部电子邮件产品与解决方案提供商，全面国产化适配，产品涵盖信创邮件系统、信创云企业邮箱、邮件安全网关等，可为各行业提供更加安全、高效、自主可控的信创邮件系统解决方案，电话400-000-1631

Top issues to fix

13 issues found · 3 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Slow estimated load (4.2s)

    Performance

    Use a CDN, enable caching/compression, and cut render-blocking assets — every extra second costs conversions.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

+7 more issues — details in the sections below.

60

SEO

7 issue(s) found

70

Performance

4.17 s

65

Security

HTTPS & header checks

90

Accessibility

1 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

Company details published in this site's own structured data.

Coremail是国内头部电子邮件产品与解决方案提供商，全面国产化适配，产品涵盖信创邮件系统、信创云企业邮箱、邮件安全网关等，可为各行业提供更加安全、高效、自主可控的信创邮件系统解决方案，电话400-000-1631

Contact

Email, phone, and address published on this site's own pages.

Meta tags

Title
Coremail邮件系统_企业邮箱_邮件网关_10亿用户信赖的邮件服务器系统
Description
Coremail是国内头部电子邮件产品与解决方案提供商，全面国产化适配，产品涵盖信创邮件系统、信创云企业邮箱、邮件安全网关等，可为各行业提供更加安全、高效、自主可控的信创邮件系统解决方案，电话400-000-1631
Canonical
Language
Charset
UTF-8
Viewport
width=device-width, initial-scale=1, user-scalable=no, minimal-ui
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

jQueryNginx

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.2
Issuer
GoDaddy.com, Inc.
Subject
*.coremail.cn
Valid from
Apr 1, 2026
Valid to
Oct 16, 2026
Days until expiry
82
SAN domains
*.coremail.cn, coremail.cn

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsMissing
  • X-Content-Type-OptionsMissing
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

37 internal · 7 external · 0 broken

Images

118 total · 0 missing alt

Scripts / Styles

20 scripts · 4 stylesheets

JS / CSS size

133 KB · 0 B

Page size

106 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Title longer than 60 characters
  • Meta description longer than 160 characters
  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

  • Missing <html lang> attribute

Scan details

Requested URL
https://coremail.cn
Final URL
https://www.coremail.cn/
HTTP status
200
HTTP version
HTTP/1.1
Response time
4.16 s
HTML size
106 KB
Redirect chain
https://coremail.cn → https://www.coremail.cn/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does coremail.cn use?
coremail.cn is built with jQuery, Nginx.
Is coremail.cn secure (HTTPS)?
Yes. coremail.cn uses TLS 1.2 with a certificate issued by GoDaddy.com, Inc., valid until Oct 16, 2026.
Who hosts coremail.cn?
Hosting provider information for coremail.cn is not available yet.
What is coremail.cn's SEO score?
coremail.cn scored 60/100 for SEO in the latest analysis (fair).
What is coremail.cn's overall website score?
coremail.cn has an overall SiteGraph score of 70/100, combining SEO, performance, security, and accessibility.