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SGSiteGraph

duke.edu

Duke University - Fueled by creativity, informed by scholarship

Last scanned Jul 18, 2026, 8:49 PM

83

Overall score

Great

Top issues to fix

9 issues found · 2 high priority

  • Missing Strict-Transport-Security header

    Security

    Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.

  • Missing Content-Security-Policy header

    Security

    Add a CSP to control which sources can run scripts — the strongest single defense against XSS.

  • Missing X-Content-Type-Options header

    Security

    Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.

  • Missing X-Frame-Options header

    Security

    Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.

  • Title longer than 60 characters

    SEO

    Shorten the title to under 60 characters so search results don't truncate it.

  • Multiple H1 headings found

    SEO

    Keep 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.

80

SEO

4 issue(s) found

90

Performance

1.86 s

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

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

OpenGraph & Twitter Card

OpenGraph

og:title
Duke University
og:description
Fueled by creativity, informed by scholarship
og:type
website
og:url
https://www.duke.edu/

Twitter Card

twitter:card
summary_large_image
twitter:title
twitter:description

Technologies

Detected frameworks, languages, and tools.

Hosting & CDN

Hosting provider
CDN provider
IP address
ASN

DNS records

TypeValue
A
AAAA
MX
TXT
NS
CAA
CNAME
IPv6 supportNo

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/

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.