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opensolar.com

OpenSolar | Accelerating Solar Adoption with Free Software

Last scanned Jul 27, 2026, 12:43 PM

81

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 fair (70/100). 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 · 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.

  • 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 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.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

95

SEO

1 issue(s) found

90

Performance

2.41 s

65

Security

HTTPS & header checks

70

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.

OpenSolar

Free, class-leading software to design, sell and manage solar projects.

Contact

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

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

OpenGraph & Twitter Card

OpenGraph

og:title
Home
og:description
OpenSolar connects homeowners, solar professionals, and partners with free software to design, sell, and manage fast, accurate solar projects.
og:type
website
og:url
https://www.opensolar.com/

Twitter Card

twitter:card
summary_large_image
twitter:title
twitter:description

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

TypeValue
A
  • 141.193.213.20
  • 141.193.213.21
AAAA
MX
  • alt1.aspmx.l.google.com
  • aspmx.l.google.com
  • aspmx3.googlemail.com
  • aspmx2.googlemail.com
  • alt2.aspmx.l.google.com
TXT
NS
  • ns-744.awsdns-29.net
  • ns-269.awsdns-33.com
  • ns-1975.awsdns-54.co.uk
  • ns-1515.awsdns-61.org
CAA
CNAME
  • opensolar.com
IPv6 supportNo

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
58
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

23 total · 12 missing alt

Scripts / Styles

28 scripts · 8 stylesheets

JS / CSS size

113 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

  • Over half of images are missing alt text

Careers

View careers page

This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.

Scan details

Requested URL
https://opensolar.com
Final URL
https://www.opensolar.com/
HTTP status
200
HTTP version
HTTP/2
Response time
2.41 s
HTML size
154 KB
Redirect chain
https://opensolar.com → http://www.opensolar.com/ → https://www.opensolar.com/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does opensolar.com use?
opensolar.com is built with WordPress, jQuery, Google Analytics.
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 81/100, 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.
Is opensolar.com hiring?
opensolar.com has a careers page; check it directly for current openings.