yale.edu
Yale University
Last scanned Jul 18, 2026, 8:49 PM
Overall score
Great
Top issues to fix
7 issues found · 1 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
TLS certificate expires in 26 days
SecurityRenew soon or enable auto-renewal to avoid a browser-warning outage.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
+1 more issue — details in the sections below.
Summary
Since its founding in 1701, Yale University has been dedicated to expanding and sharing knowledge, inspiring innovation, and preserving cultural and scientific information for future generations. This website uses Nginx hosted on Fastly behind Fastly CDN. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.
SEO
4 issue(s) found
Performance
13 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- Yale University
- Description
- Since its founding in 1701, Yale University has been dedicated to expanding and sharing knowledge, inspiring innovation, and preserving cultural and scientific information for future generations.
- Canonical
- https://www.yale.edu/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
- https://www.yale.edu/sites/all/themes/yale_blue/images/favicons/manifest.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Certainly
- Subject
- *.yale.edu
- Valid from
- Jul 15, 2026
- Valid to
- Aug 14, 2026
- Days until expiry
- 26
- SAN domains
- *.yale.edu
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 2 · H2 15 · H3 11
Links
36 internal · 50 external · 1 broken
Images
17 total · 0 missing alt
Scripts / Styles
23 scripts · 12 stylesheets
JS / CSS size
696 KB · 362 KB
Page size
99.6 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 43
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Meta description longer than 160 characters
- Multiple H1 headings found
- No structured data (JSON-LD) found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Careers
| Role | Location | Posted |
|---|---|---|
| Arts & Culture | — | — |
| Athletics & Recreation | — | — |
| Health & Wellness | — | — |
| New Haven | — | — |
| Virtual Yale | — | — |
Scan details
- Requested URL
- https://yale.edu
- Final URL
- https://www.yale.edu/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 11 ms
- HTML size
- 99.6 KB
- Redirect chain
- https://yale.edu → https://www.yale.edu/
Related websites
Same technology stack
zend.com
Enterprise PHP Development Platform | Expert PHP Support | Zend
epa.gov
U.S. Environmental Protection Agency | US EPA
utexas.edu
The University of Texas at Austin
upenn.edu
University of Pennsylvania
aboutads.info
YourAdChoices.com | Welcome to YourAdChoices.com
ohchr.org
UN Human Rights Office
Same hosting provider
firefox.com
Firefox: The fast, private browser that keeps you safe — Firefox.com
mozilla.com
Firefox: The fast, private browser that keeps you safe — Firefox.com
pypi.org
PyPI · The Python Package Index
zend.com
Enterprise PHP Development Platform | Expert PHP Support | Zend
cloud.com
Cloud Software Group home
adroll.com
Multichannel Advertising & Account-Based Marketing Platform | AdRoll
Frequently asked questions
- What technology does yale.edu use?
- yale.edu is built with Drupal, jQuery, Google Analytics, Nginx.
- Is yale.edu secure (HTTPS)?
- Yes. yale.edu uses TLS 1.2 with a certificate issued by Certainly, valid until Aug 14, 2026.
- Who hosts yale.edu?
- yale.edu is hosted on Fastly, behind Fastly CDN.
- What is yale.edu's SEO score?
- yale.edu scored 75/100 for SEO in the latest analysis (fair).
- What is yale.edu's overall website score?
- yale.edu has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
- Is yale.edu hiring?
- Yes. yale.edu has 5 open roles listed on their careers page.
OpenGraph & Twitter Card
OpenGraph
Twitter Card