open-mpi.org
Open MPI: Open Source High Performance Computing
Last scanned Aug 24, 2026, 1:22 PM · 2 views
Overall score
Fair
Summary
This website uses Apache hosted on AWS behind CloudFront CDN. SEO is fair (70/100) and accessibility is fair (55/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing meta description.
- United States
- Hosted on AWS
Top issues to fix
11 issues found · 5 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 meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
Over half of images are missing alt text
AccessibilityAdd alt attributes to images — screen readers depend on them, and they help image SEO.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
+5 more issues — details in the sections below.
SEO
4 issue(s) found
Performance
245 ms
Security
HTTPS & header checks
Accessibility
3 issue(s) found
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Open MPI: Open Source High Performance Computing
- Description
- Canonical
- Language
- Charset
- UTF-8
- Viewport
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- CloudFront
- IP address
- 13.227.249.32
- 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
- Amazon
- Subject
- www.open-mpi.org
- Valid from
- Nov 11, 2025
- Valid to
- Dec 9, 2026
- Days until expiry
- 106
- SAN domains
- www.open-mpi.org
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 1 · H2 1 · H3 2
Links
14 internal · 10 external · 0 broken
Images
10 total · 9 missing alt
Scripts / Styles
7 scripts · 0 stylesheets
JS / CSS size
85.1 KB · 6.4 KB
Page size
19.4 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 5
- sitemap.xml
- Found
- URLs in sitemap
- 5
SEO issues
- Missing meta description
- Missing canonical link
- No structured data (JSON-LD) found
- Missing OpenGraph tags
Accessibility issues
- Over half of images are missing alt text
- Missing <html lang> attribute
- Missing viewport meta tag
Scan details
- Requested URL
- https://open-mpi.org
- Final URL
- https://www.open-mpi.org/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 245 ms
- HTML size
- 19.4 KB
- Redirect chain
- https://open-mpi.org → https://www.open-mpi.org/
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Frequently asked questions
- What technology does open-mpi.org use?
- open-mpi.org is built with jQuery, Google Analytics, Apache.
- Is open-mpi.org secure (HTTPS)?
- Yes. open-mpi.org uses TLS 1.3 with a certificate issued by Amazon, valid until Dec 9, 2026.
- Who hosts open-mpi.org?
- open-mpi.org is hosted on AWS, behind CloudFront CDN.
- What is open-mpi.org's SEO score?
- open-mpi.org scored 70/100 for SEO in the latest analysis (fair).
- What is open-mpi.org's overall website score?
- open-mpi.org has an overall SiteGraph score of 73/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card