nrao.edu
National Radio Astronomy Observatory – Revealing the Hidden Universe
Last scanned Jul 26, 2026, 2:25 AM · 2 views
Overall score
Fair
Summary
The public page for the National Radio Astronomy Observatory (NRAO). This website uses WordPress hosted on VIRGINIA-AS - University of Virginia, US. SEO is good (80/100) and accessibility is good (75/100). Security scores fair (65/100) and performance good (80/100). Top issue: Title longer than 60 characters.
The public page for the National Radio Astronomy Observatory (NRAO). Find info related to radio astronomy and the efforts of the observatory.
- United States
- Hosted on VIRGINIA-AS - University of Virginia, US
Top issues to fix
9 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.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
+3 more issues — details in the sections below.
SEO
3 issue(s) found
Performance
2.11 s
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Organization
Company details published in this site's own structured data.
The public page for the National Radio Astronomy Observatory (NRAO). Find info related to radio astronomy and the efforts of the observatory.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- National Radio Astronomy Observatory – Revealing the Hidden Universe
- Description
- The public page for the National Radio Astronomy Observatory (NRAO). Find info related to radio astronomy and the efforts of the observatory.
- Canonical
- https://public.nrao.edu/
- Language
- en-US
- Charset
- Viewport
- width=device-width,initial-scale=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
- VIRGINIA-AS - University of Virginia, US
- CDN provider
- —
- IP address
- 192.33.115.91
- ASN
- AS225 (VIRGINIA-AS - University of Virginia, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Sectigo Limited
- Subject
- *.nrao.edu
- Valid from
- Apr 15, 2026
- Valid to
- Oct 30, 2026
- Days until expiry
- 96
- SAN domains
- *.nrao.edu, nrao.edu
Security headers
- Strict-Transport-SecurityMissing
- Content-Security-PolicyMissing
- X-Frame-OptionsMissing
- X-Content-Type-OptionsMissing
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 6 · H3 2
Links
59 internal · 14 external · 1 broken
Images
38 total · 12 missing alt
Scripts / Styles
54 scripts · 17 stylesheets
JS / CSS size
803 KB · 491 KB
Page size
102 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- -1
SEO issues
- Title longer than 60 characters
- No H1 heading found
- robots.txt not found
Accessibility issues
- More than 20% of images are missing alt text
- 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.
Scan details
- Requested URL
- https://nrao.edu
- Final URL
- https://public.nrao.edu
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 2.11 s
- HTML size
- 102 KB
- Redirect chain
- https://nrao.edu → https://www.nrao.edu/ → https://public.nrao.edu
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Frequently asked questions
- What technology does nrao.edu use?
- nrao.edu is built with PHP, WordPress, WooCommerce, jQuery, Apache.
- Is nrao.edu secure (HTTPS)?
- Yes. nrao.edu uses TLS 1.3 with a certificate issued by Sectigo Limited, valid until Oct 30, 2026.
- Who hosts nrao.edu?
- nrao.edu is hosted on VIRGINIA-AS - University of Virginia, US.
- What is nrao.edu's SEO score?
- nrao.edu scored 80/100 for SEO in the latest analysis (great).
- What is nrao.edu's overall website score?
- nrao.edu has an overall SiteGraph score of 75/100, combining SEO, performance, security, and accessibility.
- Is nrao.edu hiring?
- nrao.edu has a careers page; check it directly for current openings.
OpenGraph & Twitter Card
OpenGraph
Twitter Card