planetary.org
The Planetary Society
Last scanned Aug 2, 2026, 5:00 AM · 7 views
Overall score
Excellent
Summary
The Planetary Society is the largest and most effective nonprofit organization that promotes the exploration of space through education, advocacy, and…. This website uses Google Analytics behind Cloudflare CDN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: robots.txt not found.
The Planetary Society is the largest and most effective nonprofit organization that promotes the exploration of space through education, advocacy, and…
Top issues to fix
4 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
20 broken links on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
2 issue(s) found
Performance
1.88 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
-3 overall since Jul 26, 2026
- Overall
- 92
- SEO
- 90
- Security
- 90
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
The Planetary Society is the largest and most effective nonprofit organization that promotes the exploration of space through education, advocacy, and…
Meta tags
- Title
- The Planetary Society
- Description
- The Planetary Society is the largest and most effective nonprofit organization that promotes the exploration of space through education, advocacy, and…
- Canonical
- https://www.planetary.org/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width,minimum-scale=1
- Robots meta
- all
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Cloudflare
- 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
- Google Trust Services
- Subject
- planetary.org
- Valid from
- Jun 9, 2026
- Valid to
- Sep 7, 2026
- Days until expiry
- 35
- SAN domains
- planetary.org, *.planetary.org
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 1 · H2 5 · H3 26
Links
55 internal · 12 external · 20 broken
Images
20 total · 3 missing alt
Scripts / Styles
13 scripts · 1 stylesheets
JS / CSS size
7.4 KB · 13.5 KB
Page size
88.0 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://planetary.org
- Final URL
- https://www.planetary.org/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 1.88 s
- HTML size
- 88.0 KB
- Redirect chain
- https://planetary.org → https://www.planetary.org/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does planetary.org use?
- planetary.org is built with Google Analytics, Meta Pixel.
- Is planetary.org secure (HTTPS)?
- Yes. planetary.org uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 7, 2026.
- Who hosts planetary.org?
- Hosting provider information for planetary.org is not available yet.
- What is planetary.org's SEO score?
- planetary.org scored 90/100 for SEO in the latest analysis (excellent).
- What is planetary.org's overall website score?
- planetary.org has an overall SiteGraph score of 92/100, combining SEO, performance, security, and accessibility.
- Has planetary.org's score changed over time?
- planetary.org's overall score has declined by 3 points (from 95 to 92) since Jul 26, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card