psi.edu
Planetary Science Institute | Discovery & Public Education in Planetary Science
Last scanned Aug 5, 2026, 2:00 AM · 10 views
Overall score
Great
Summary
The Planetary Science Institute (PSI) is a private nonprofit organization dedicated to scientific discovery and public education in planetary science. This website uses WordPress behind Cloudflare CDN. SEO is good (80/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.
The Planetary Science Institute (PSI) is a private nonprofit organization dedicated to scientific discovery and public education in planetary science.
Top issues to fix
6 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.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
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
4 issue(s) found
Performance
2.54 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
+1 overall since Jul 27, 2026
- Overall
- 89
- SEO
- 80
- Security
- 90
- Performance
- 90
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
- buxner@psi.edu
Meta tags
- Title
- Planetary Science Institute | Discovery & Public Education in Planetary Science
- Description
- The Planetary Science Institute (PSI) is a private nonprofit organization dedicated to scientific discovery and public education in planetary science.
- Canonical
- https://www.psi.edu/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- follow, index, max-snippet:-1, max-video-preview:-1, max-image-preview:large
- 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
- psi.edu
- Valid from
- Jun 20, 2026
- Valid to
- Sep 18, 2026
- Days until expiry
- 44
- SAN domains
- psi.edu, *.psi.edu
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 2 · H2 5 · H3 8
Links
47 internal · 15 external · 20 broken
Images
26 total · 1 missing alt
Scripts / Styles
31 scripts · 13 stylesheets
JS / CSS size
28.1 KB · 41.2 KB
Page size
154 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Multiple H1 headings found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://psi.edu
- Final URL
- https://www.psi.edu/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 2.54 s
- HTML size
- 154 KB
- Redirect chain
- https://psi.edu → https://www.psi.edu/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does psi.edu use?
- psi.edu is built with PHP, WordPress, jQuery, Google Analytics, Cloudflare Analytics.
- Is psi.edu secure (HTTPS)?
- Yes. psi.edu uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 18, 2026.
- Who hosts psi.edu?
- Hosting provider information for psi.edu is not available yet.
- What is psi.edu's SEO score?
- psi.edu scored 80/100 for SEO in the latest analysis (great).
- What is psi.edu's overall website score?
- psi.edu has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
- Has psi.edu's score changed over time?
- psi.edu's overall score has improved by 1 point (from 88 to 89) since Jul 27, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card