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SGSiteGraph

princeton.edu

Home | Princeton University

Last scanned Jul 29, 2026, 7:00 PM · 10 views

87

Overall score

Great

Summary

Through teaching and research, we educate people who will contribute to society and develop knowledge that will make a difference in the world. This website uses Drupal behind Cloudflare CDN. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (90/100). Top issue: No structured data (JSON-LD) found.

Through teaching and research, we educate people who will contribute to society and develop knowledge that will make a difference in the world.

Top issues to fix

6 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.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • 20 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

80

SEO

3 issue(s) found

90

Performance

1.99 s

80

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-3 overall since Jul 15, 2026

Overall
87
SEO
80
Security
80
Performance
90
Accessibility
100

Organization

Company details published in this site's own structured data.

Through teaching and research, we educate people who will contribute to society and develop knowledge that will make a difference in the world.

YouTubeYouTubeFacebookX (Twitter)InstagramYouTube

Meta tags

Title
Home | Princeton University
Description
Through teaching and research, we educate people who will contribute to society and develop knowledge that will make a difference in the world.
Canonical
https://www.princeton.edu/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest
https://www.Princeton.EDU/themes/custom/hobbes/icons/manifest.json

OpenGraph & Twitter Card

OpenGraph

og:title
Princeton University
og:description
Through teaching and research, we educate people who will contribute to society and develop knowledge that will make a difference in the world.
og:type
website
og:url
https://www.princeton.edu/home

Twitter Card

twitter:card
summary
twitter:title
Princeton University
twitter:description
Through teaching and research, we educate people who will contribute to society and develop knowledge that will make a difference in the world.

Technologies

Detected frameworks, languages, and tools.

Drupal

Hosting & CDN

Hosting provider
—
CDN provider
Cloudflare
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
SSL Corporation
Subject
www.princeton.edu
Valid from
Jun 1, 2026
Valid to
Aug 30, 2026
Days until expiry
31
SAN domains
www.princeton.edu

Security headers

  • Strict-Transport-SecurityMissing
  • Content-Security-PolicyMissing
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: gzip · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 16 · H3 30

Links

76 internal · 48 external · 20 broken

Images

31 total · 0 missing alt

Scripts / Styles

6 scripts · 3 stylesheets

JS / CSS size

2.1 KB · 791 B

Page size

99.2 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://princeton.edu
Final URL
https://www.Princeton.EDU/
HTTP status
200
HTTP version
HTTP/2
Response time
1.99 s
HTML size
99.2 KB
Redirect chain
https://princeton.edu → https://www.Princeton.EDU/

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Frequently asked questions

What technology does princeton.edu use?
princeton.edu is built with Drupal.
Is princeton.edu secure (HTTPS)?
Yes. princeton.edu uses TLS 1.3 with a certificate issued by SSL Corporation, valid until Aug 30, 2026.
Who hosts princeton.edu?
Hosting provider information for princeton.edu is not available yet.
What is princeton.edu's SEO score?
princeton.edu scored 80/100 for SEO in the latest analysis (great).
What is princeton.edu's overall website score?
princeton.edu has an overall SiteGraph score of 87/100, combining SEO, performance, security, and accessibility.
Has princeton.edu's score changed over time?
princeton.edu's overall score has declined by 3 points (from 90 to 87) since Jul 15, 2026.