duke.edu
Duke University - Fueled by creativity, informed by scholarship
Last scanned Jul 18, 2026, 8:49 PM
Overall score
Great
Top issues to fix
9 issues found · 2 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 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.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
+3 more issues — details in the sections below.
Summary
Fueled by creativity, informed by scholarship. This website uses WordPress. SEO is good (80/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Title longer than 60 characters.
SEO
4 issue(s) found
Performance
1.86 s
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Duke University - Fueled by creativity, informed by scholarship
- Description
- Fueled by creativity, informed by scholarship
- Canonical
- https://www.duke.edu/
- Language
- en-US
- Charset
- UTF-8
- 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
- —
- CDN provider
- —
- 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
- Internet2
- Subject
- duke.edu
- Valid from
- Apr 22, 2026
- Valid to
- Nov 6, 2026
- Days until expiry
- 111
- SAN domains
- duke.edu, www.duke.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 3 · H2 21 · H3 34
Links
11 internal · 149 external · 6 broken
Images
36 total · 0 missing alt
Scripts / Styles
13 scripts · 8 stylesheets
JS / CSS size
115 KB · 96.2 KB
Page size
275 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://duke.edu
- Final URL
- https://www.duke.edu/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 1.86 s
- HTML size
- 275 KB
- Redirect chain
- https://duke.edu → https://www.duke.edu/
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Frequently asked questions
- What technology does duke.edu use?
- duke.edu is built with WordPress, jQuery, Apache.
- Is duke.edu secure (HTTPS)?
- Yes. duke.edu uses TLS 1.3 with a certificate issued by Internet2, valid until Nov 6, 2026.
- Who hosts duke.edu?
- Hosting provider information for duke.edu is not available yet.
- What is duke.edu's SEO score?
- duke.edu scored 80/100 for SEO in the latest analysis (great).
- What is duke.edu's overall website score?
- duke.edu has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card