nso.edu
Home Page - NSO - National Solar Observatory
Last scanned Jul 25, 2026, 8:25 PM · 3 views
Overall score
Great
Summary
Learn how the NSF's National Solar Observatory (NSO) uses its solar observatories to learn about the Sun and how it influences Earth. This website uses WordPress hosted on ORACLE-BMC-31898 - Oracle Corporation, US. SEO is excellent (90/100) and accessibility is excellent (90/100). Security scores fair (65/100) and performance good (80/100). Top issue: No H1 heading found.
Learn how the NSF's National Solar Observatory (NSO) uses its solar observatories to learn about the Sun and how it influences Earth.
- United States
- Hosted on ORACLE-BMC-31898 - Oracle Corporation, US
Top issues to fix
6 issues found · 3 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.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
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.
1 broken link on the page
SEOFix or remove broken links — they waste crawl budget and erode user trust.
SEO
1 issue(s) found
Performance
542 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
Learn how the NSF's National Solar Observatory (NSO) uses its solar observatories to learn about the Sun and how it influences Earth.
Contact
Email, phone, and address published on this site's own pages.
- webhelp@nso.edu
Meta tags
- Title
- Home Page - NSO - National Solar Observatory
- Description
- Learn how the NSF's National Solar Observatory (NSO) uses its solar observatories to learn about the Sun and how it influences Earth.
- Canonical
- https://nso.edu/
- Language
- en-US
- Charset
- UTF-8
- Viewport
- width=device-width, initial-scale=1.0, maximum-scale=1.0, user-scalable=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
- ORACLE-BMC-31898 - Oracle Corporation, US
- CDN provider
- —
- IP address
- 50.6.111.190
- ASN
- AS31898 (ORACLE-BMC-31898 - Oracle Corporation, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT | — |
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- www.nso.edu
- Valid from
- Jul 23, 2026
- Valid to
- Oct 21, 2026
- Days until expiry
- 88
- SAN domains
- diglib-dev.nso.edu, eo-dev.nso.edu, intranet.nso.edu, nso.edu, nsokp-dev.nso.edu, nsosp-dev.nso.edu, solarnews.nso.edu, www.nso.edu
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 0 · H2 4 · H3 240
Links
296 internal · 15 external · 1 broken
Images
254 total · 3 missing alt
Scripts / Styles
66 scripts · 0 stylesheets
JS / CSS size
54.2 KB · 247 KB
Page size
954 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 6
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- No H1 heading found
Accessibility issues
- No H1 heading found
Careers
This company has an active careers page, but individual openings weren't reliably parsed from it — visit the page above for current listings.
Team
People listed on this site's own team or about page.
Christoph Keller
NSO Director
Christoph Keller
NSO Director
Valentin Martinez Pillet
Director of NSO
Jennifer Ditsler
Head of Administration & Support Facilities
Valentin Martinez Pillet
Director of NSO
David Boboltz
Deputy Director – Inouye Solar Telescope
David Boboltz
Associate Director - Inouye Solar Telescope
Valentin Martinez Pillet
Director of NSO
Eric Cross
Head of NSO IT
Valentin Martinez Pillet
Director of NSO
Alexei Pevtsov
Associate Director - NISP
Valentin Martinez Pillet
Director of NSO
Carolyn Watkins
Business Manager
Mark Warner
Project Manager, DKIST
Mark Warner
Project Manager, DKIST
Valentin Martinez Pillet
Director of NSO
Han Uitenbroek
Associate Director - NCSP
Jorge Perez-Gallego
Head of Education, Public Outreach and Communications
Scan details
- Requested URL
- https://nso.edu
- Final URL
- https://nso.edu
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 523 ms
- HTML size
- 954 KB
- Redirect chain
- https://nso.edu
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does nso.edu use?
- nso.edu is built with WordPress, WooCommerce, Apache.
- Is nso.edu secure (HTTPS)?
- Yes. nso.edu uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 21, 2026.
- Who hosts nso.edu?
- nso.edu is hosted on ORACLE-BMC-31898 - Oracle Corporation, US.
- What is nso.edu's SEO score?
- nso.edu scored 90/100 for SEO in the latest analysis (excellent).
- What is nso.edu's overall website score?
- nso.edu has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.
- Is nso.edu hiring?
- nso.edu has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card