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SGSiteGraph

hvacr.cn

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Last scanned Aug 24, 2026, 1:21 PM

67

Overall score

Fair

Summary

�������г�����150��������,�յ�,�ȱ���ҵϸ�����򡢱鼰ȫ��300�����������ṩ��Ʒ����ҵ�����š��������ϡ��˲���Ƹ�ȷ����������ɹ���Ʒ��ѧϰרҵ֪ʶ����Ƹ�˲ŵ�һվʽ����ƽ̨��. This website uses jQuery. SEO is fair (65/100) and accessibility is fair (55/100). Security scores fair (65/100) and performance good (80/100). Top issue: Meta description longer than 160 characters.

�������г�����150��������,�յ�,�ȱ���ҵϸ�����򡢱鼰ȫ��300�����������ṩ��Ʒ����ҵ�����š��������ϡ��˲���Ƹ�ȷ����������ɹ���Ʒ��ѧϰרҵ֪ʶ����Ƹ�˲ŵ�һվʽ����ƽ̨��

Top issues to fix

15 issues found · 5 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.

  • Over half of images are missing alt text

    Accessibility

    Add alt attributes to images — screen readers depend on them, and they help image SEO.

  • Missing viewport meta tag

    Accessibility

    Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

  • Slow estimated load (7.0s)

    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.

+9 more issues — details in the sections below.

65

SEO

6 issue(s) found

80

Performance

7.04 s

65

Security

HTTPS & header checks

55

Accessibility

3 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.

�������г�����150��������,�յ�,�ȱ���ҵϸ�����򡢱鼰ȫ��300�����������ṩ��Ʒ����ҵ�����š��������ϡ��˲���Ƹ�ȷ����������ɹ���Ʒ��ѧϰרҵ֪ʶ����Ƹ�˲ŵ�һվʽ����ƽ̨��

Meta tags

Title
�����ɹ���������ƽ̨�����������г�
Description
�������г�����150��������,�յ�,�ȱ���ҵϸ�����򡢱鼰ȫ��300�����������ṩ��Ʒ����ҵ�����š��������ϡ��˲���Ƹ�ȷ����������ɹ���Ʒ��ѧϰרҵ֪ʶ����Ƹ�˲ŵ�һվʽ����ƽ̨��
Canonical
Language
Charset
gb2312
Viewport
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.

BootstrapjQuery

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
DigiCert Inc
Subject
*.hvacr.cn
Valid from
May 20, 2026
Valid to
Dec 4, 2026
Days until expiry
101
SAN domains
*.hvacr.cn, hvacr.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 10 · H3 6

Links

332 internal · 166 external · 20 broken

Images

30 total · 29 missing alt

Scripts / Styles

22 scripts · 4 stylesheets

JS / CSS size

8.9 KB · 1.3 KB

Page size

109 KB

Robots.txt & Sitemap

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

SEO issues

  • 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

  • Over half of images are missing alt text
  • Missing <html lang> attribute
  • Missing viewport meta tag

Scan details

Requested URL
https://hvacr.cn
Final URL
https://hvacr.cn
HTTP status
200
HTTP version
HTTP/1.1
Response time
7.04 s
HTML size
109 KB
Redirect chain
https://hvacr.cn

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does hvacr.cn use?
hvacr.cn is built with Bootstrap, jQuery.
Is hvacr.cn secure (HTTPS)?
Yes. hvacr.cn uses TLS 1.2 with a certificate issued by DigiCert Inc, valid until Dec 4, 2026.
Who hosts hvacr.cn?
Hosting provider information for hvacr.cn is not available yet.
What is hvacr.cn's SEO score?
hvacr.cn scored 65/100 for SEO in the latest analysis (fair).
What is hvacr.cn's overall website score?
hvacr.cn has an overall SiteGraph score of 67/100, combining SEO, performance, security, and accessibility.