longi.com
The World’s Leading Supplier of Solar PV Solutions - LONGi
Last scanned Aug 4, 2026, 11:00 AM · 10 views
Overall score
Fair
Summary
LONGi, using innovative products and solutions help the world a healthier, safer and more sustainable place. This website uses Nuxt hosted on AWS behind CloudFront CDN. SEO is good (80/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance good (75/100). Top issue: No H1 heading found.
LONGi, using innovative products and solutions help the world a healthier, safer and more sustainable place.
- United States
- Hosted on AWS
Top issues to fix
6 issues found · 3 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
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.
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.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
SEO
2 issue(s) found
Performance
1.87 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
+2 overall since Jul 27, 2026
- Overall
- 77
- SEO
- 80
- Security
- 65
- Performance
- 75
- Accessibility
- 90
Organization
Company details published in this site's own structured data.
LONGi, using innovative products and solutions help the world a healthier, safer and more sustainable place.
Meta tags
- Title
- The World’s Leading Supplier of Solar PV Solutions - LONGi
- Description
- LONGi, using innovative products and solutions help the world a healthier, safer and more sustainable place.
- Canonical
- https://www.longi.com/en/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- CloudFront
- IP address
- 13.225.5.57
- ASN
- AS16509 (AMAZON-02 - Amazon.com, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS |
|
| CAA | — |
| CNAME |
|
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- DigiCert, Inc.
- Subject
- *.longi.com
- Valid from
- Feb 9, 2026
- Valid to
- Mar 10, 2027
- Days until expiry
- 218
- SAN domains
- *.longi.com, *.longi-silicon.com, mail.longigroup.com, longi.com
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 0 · H2 18 · H3 9
Links
120 internal · 14 external · 0 broken
Images
68 total · 0 missing alt
Scripts / Styles
7 scripts · 0 stylesheets
JS / CSS size
1.7 MB · 83.9 KB
Page size
193 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 125
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- No H1 heading found
- No structured data (JSON-LD) found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://longi.com
- Final URL
- https://www.longi.com/en/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.87 s
- HTML size
- 193 KB
- Redirect chain
- https://longi.com → https://www.longi.com/ → https://www.longi.com/en/
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Frequently asked questions
- What technology does longi.com use?
- longi.com is built with Vue.js, Nuxt.
- Is longi.com secure (HTTPS)?
- Yes. longi.com uses TLS 1.3 with a certificate issued by DigiCert, Inc., valid until Mar 10, 2027.
- Who hosts longi.com?
- longi.com is hosted on AWS, behind CloudFront CDN.
- What is longi.com's SEO score?
- longi.com scored 80/100 for SEO in the latest analysis (great).
- What is longi.com's overall website score?
- longi.com has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
- Has longi.com's score changed over time?
- longi.com's overall score has improved by 2 points (from 75 to 77) since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card