gzzdhj.com
广州中大环境治理工程有限公司
Last scanned Aug 24, 2026, 1:21 PM
Overall score
Fair
Summary
广州中大环境治理工程有限公司于2003年在整合教育部直属“985”高校中山大学原有环保产业实体基础上设立，系中山大学产业集团下属骨干企业，是一家集环保技术咨… This website uses jQuery. SEO is fair (55/100) and accessibility is poor (45/100). Security scores poor (35/100) and performance excellent (100/100). Top issue: Meta description longer than 160 characters.
广州中大环境治理工程有限公司于2003年在整合教育部直属“985”高校中山大学原有环保产业实体基础上设立，系中山大学产业集团下属骨干企业，是一家集环保技术咨询服务、环保工程设计施工总承包、环保设施运营维护和环保产品研究开发为一体的综合环保服务提供商。
Top issues to fix
14 issues found · 4 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
+8 more issues — details in the sections below.
SEO
7 issue(s) found
Performance
413 ms
Security
HTTPS & header checks
Accessibility
4 issue(s) found
Organization
Company details published in this site's own structured data.
广州中大环境治理工程有限公司于2003年在整合教育部直属“985”高校中山大学原有环保产业实体基础上设立，系中山大学产业集团下属骨干企业，是一家集环保技术咨询服务、环保工程设计施工总承包、环保设施运营维护和环保产品研究开发为一体的综合环保服务提供商。
Meta tags
- Title
- 广州中大环境治理工程有限公司
- Description
- 广州中大环境治理工程有限公司于2003年在整合教育部直属“985”高校中山大学原有环保产业实体基础上设立，系中山大学产业集团下属骨干企业，是一家集环保技术咨询服务、环保工程设计施工总承包、环保设施运营维护和环保产品研究开发为一体的综合环保服务提供商。
- Canonical
- Language
- Charset
- utf-8
- Viewport
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- —
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- unknown
- Subject
- unknown
- Valid from
- Mar 26, 2019
- Valid to
- Mar 23, 2029
- Days until expiry
- 941
- SAN domains
- —
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyEnabled
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 5 · H3 0
Links
47 internal · 8 external · 20 broken
Images
20 total · 20 missing alt
Scripts / Styles
10 scripts · 2 stylesheets
JS / CSS size
6.0 KB · 0 B
Page size
21.5 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 H1 heading found
- 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
- No H1 heading found
- Missing <html lang> attribute
- Missing viewport meta tag
Scan details
- Requested URL
- https://gzzdhj.com
- Final URL
- https://gzzdhj.com
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 413 ms
- HTML size
- 21.5 KB
- Redirect chain
- https://gzzdhj.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does gzzdhj.com use?
- gzzdhj.com is built with jQuery.
- Is gzzdhj.com secure (HTTPS)?
- Yes. gzzdhj.com uses TLS 1.3 with a certificate issued by unknown, valid until Mar 23, 2029.
- Who hosts gzzdhj.com?
- Hosting provider information for gzzdhj.com is not available yet.
- What is gzzdhj.com's SEO score?
- gzzdhj.com scored 55/100 for SEO in the latest analysis (fair).
- What is gzzdhj.com's overall website score?
- gzzdhj.com has an overall SiteGraph score of 59/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card