opensolar.com
OpenSolar | Accelerating Solar Adoption with Free Software
Last scanned Aug 4, 2026, 5:00 PM · 11 views
Overall score
Great
Summary
Free, class-leading software to design, sell and manage solar projects. This website uses WordPress hosted on Cloudflare behind Cloudflare CDN. SEO is excellent (95/100) and accessibility is good (85/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: robots.txt not found.
OpenSolar
Free, class-leading software to design, sell and manage solar projects.
- Level 1/477 Pitt Street, Haymarket, New South Wales, 2000, AU
- Hosted on Cloudflare
Top issues to fix
6 issues found · 2 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.
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.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
More than 20% of images are missing alt text
AccessibilityAdd alt attributes to the remaining images (use alt="" for purely decorative ones).
SEO
1 issue(s) found
Performance
2.63 s
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Score history
+3 overall since Jul 27, 2026
- Overall
- 84
- SEO
- 95
- Security
- 65
- Performance
- 90
- Accessibility
- 85
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- hello@opensolar.com
- Address
- Level 1/477 Pitt Street, Haymarket, New South Wales, 2000, AU
Meta tags
- Title
- OpenSolar | Accelerating Solar Adoption with Free Software
- Description
- OpenSolar connects homeowners, solar professionals, and partners with free software to design, sell, and manage fast, accurate solar projects.
- Canonical
- https://www.opensolar.com/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- Cloudflare
- CDN provider
- Cloudflare
- IP address
- 141.193.213.20
- ASN
- AS209242 (CLOUDFLARESPECTRUM - Cloudflare London, LLC, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT | — |
| NS |
|
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Google Trust Services
- Subject
- www.opensolar.com
- Valid from
- Jun 25, 2026
- Valid to
- Sep 23, 2026
- Days until expiry
- 49
- SAN domains
- www.opensolar.com
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 1 cookie(s) observed
Content & assets
Headings
H1 1 · H2 4 · H3 0
Links
57 internal · 12 external · 0 broken
Images
24 total · 12 missing alt
Scripts / Styles
30 scripts · 8 stylesheets
JS / CSS size
117 KB · 21.6 KB
Page size
154 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- robots.txt not found
Accessibility issues
- More than 20% of images are missing alt text
Scan details
- Requested URL
- https://opensolar.com
- Final URL
- https://www.opensolar.com/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 2.63 s
- HTML size
- 154 KB
- Redirect chain
- https://opensolar.com → http://www.opensolar.com/ → https://www.opensolar.com/
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Frequently asked questions
- What technology does opensolar.com use?
- opensolar.com is built with WordPress, jQuery, Google Analytics, Google Ads.
- Is opensolar.com secure (HTTPS)?
- Yes. opensolar.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 23, 2026.
- Who hosts opensolar.com?
- opensolar.com is hosted on Cloudflare, behind Cloudflare CDN.
- What is opensolar.com's SEO score?
- opensolar.com scored 95/100 for SEO in the latest analysis (excellent).
- What is opensolar.com's overall website score?
- opensolar.com has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
- What company operates opensolar.com?
- opensolar.com is operated by OpenSolar. Free, class-leading software to design, sell and manage solar projects.
- Has opensolar.com's score changed over time?
- opensolar.com's overall score has improved by 3 points (from 81 to 84) since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card