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SGSiteGraph

cs.princeton.edu

Home | CS

Last scanned Jul 22, 2026, 5:57 PM · 1 view

83

Overall score

Great

Summary

This website uses PHP hosted on PRINCETON-AS - Princeton University, US. SEO is fair (60/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (90/100). Top issue: Missing meta description.

United States
Hosted on PRINCETON-AS - Princeton University, US

Top issues to fix

7 issues found · 2 high priority

  • Missing Content-Security-Policy header

    Security

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

  • Missing meta description

    SEO

    Add a ~150-character meta description to control your search-result snippet and lift click-through rate.

  • Missing canonical link

    SEO

    Add <link rel="canonical"> so search engines know which URL variant to index.

  • Multiple H1 headings found

    SEO

    Keep a single H1 per page and demote the others to H2/H3.

  • No structured data (JSON-LD) found

    SEO

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

  • Missing OpenGraph tags

    SEO

    Add og:title/og:description/og:image so shared links render a proper preview card.

+1 more issue — details in the sections below.

60

SEO

6 issue(s) found

90

Performance

1.75 s

90

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.

FacebookX (Twitter)YouTube

Contact

Email, phone, and address published on this site's own pages.

Source: https://www.cs.princeton.edu/contact-us

Meta tags

Title
Home | CS
Description
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
—
og:description
—
og:type
—
og:url
—

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

PHPDrupalApache

Hosting & CDN

CDN provider
—
IP address
128.112.136.67
ASN
AS88 (PRINCETON-AS - Princeton University, US)

DNS records

TypeValue
A
  • 128.112.136.67
AAAA—
MX—
TXT—
NS—
CAA—
CNAME
  • wwwprx.cs.princeton.edu
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Let's Encrypt
Subject
www.cs.princeton.edu
Valid from
Jul 19, 2026
Valid to
Oct 17, 2026
Days until expiry
86
SAN domains
csweb-prod.cs.princeton.edu, www.cs.princeton.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 3 · H2 5 · H3 1

Links

34 internal · 8 external · 0 broken

Images

40 total · 0 missing alt

Scripts / Styles

6 scripts · 6 stylesheets

JS / CSS size

229 KB · 125 KB

Page size

188 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
34
sitemap.xml
Not found
URLs in sitemap
0

SEO issues

  • Missing meta description
  • Missing canonical link
  • Multiple H1 headings found
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://cs.princeton.edu
Final URL
https://www.cs.princeton.edu/
HTTP status
200
HTTP version
HTTP/1.1
Response time
1.74 s
HTML size
188 KB
Redirect chain
https://cs.princeton.edu → https://www.cs.princeton.edu/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does cs.princeton.edu use?
cs.princeton.edu is built with PHP, Drupal, Apache.
Is cs.princeton.edu secure (HTTPS)?
Yes. cs.princeton.edu uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 17, 2026.
Who hosts cs.princeton.edu?
cs.princeton.edu is hosted on PRINCETON-AS - Princeton University, US.
What is cs.princeton.edu's SEO score?
cs.princeton.edu scored 60/100 for SEO in the latest analysis (fair).
What is cs.princeton.edu's overall website score?
cs.princeton.edu has an overall SiteGraph score of 83/100, combining SEO, performance, security, and accessibility.