Skip to main content
SGSiteGraph

harvard.edu

Harvard University

Last scanned Jul 29, 2026, 11:00 AM · 12 views

88

Overall score

Great

Summary

Harvard University is devoted to excellence in teaching, learning, and research, and to developing leaders who make a difference globally. This website uses WordPress. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: robots.txt not found.

Harvard University is devoted to excellence in teaching, learning, and research, and to developing leaders who make a difference globally.

Top issues to fix

7 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.

  • 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.

+1 more issue — details in the sections below.

90

SEO

2 issue(s) found

100

Performance

8 ms

65

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+3 overall since Jul 15, 2026

Overall
88
SEO
90
Security
65
Performance
100
Accessibility
100

Organization

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

Harvard University is devoted to excellence in teaching, learning, and research, and to developing leaders who make a difference globally.

Meta tags

Title
Harvard University
Description
Harvard University is devoted to excellence in teaching, learning, and research, and to developing leaders who make a difference globally.
Canonical
https://www.harvard.edu/
Language
en-US
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
index, follow, max-image-preview:large, max-snippet:-1, max-video-preview:-1
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Harvard University
og:description
Harvard University is devoted to excellence in teaching, learning, and research, and to developing leaders who make a difference globally.
og:type
website
og:url
https://www.harvard.edu/

Twitter Card

twitter:card
summary_large_image
twitter:title
Harvard University
twitter:description
Harvard University is devoted to excellence in teaching, learning, and research, and to developing leaders who make a difference globally.

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
Let's Encrypt
Subject
harvard.edu
Valid from
Jul 10, 2026
Valid to
Oct 8, 2026
Days until expiry
70
SAN domains
harvard.edu, www.harvard.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 1 · H2 12 · H3 15

Links

47 internal · 108 external · 20 broken

Images

17 total · 0 missing alt

Scripts / Styles

20 scripts · 3 stylesheets

JS / CSS size

5.5 KB · 14.0 KB

Page size

152 KB

Robots.txt & Sitemap

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

SEO issues

  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://harvard.edu
Final URL
https://www.harvard.edu/
HTTP status
200
HTTP version
HTTP/2
Response time
5 ms
HTML size
152 KB
Redirect chain
https://harvard.edu → https://www.harvard.edu/

See something wrong on this report? Request a correction

Frequently asked questions

What technology does harvard.edu use?
harvard.edu is built with WordPress, jQuery, Nginx.
Is harvard.edu secure (HTTPS)?
Yes. harvard.edu uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Oct 8, 2026.
Who hosts harvard.edu?
Hosting provider information for harvard.edu is not available yet.
What is harvard.edu's SEO score?
harvard.edu scored 90/100 for SEO in the latest analysis (excellent).
What is harvard.edu's overall website score?
harvard.edu has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
Has harvard.edu's score changed over time?
harvard.edu's overall score has improved by 3 points (from 85 to 88) since Jul 15, 2026.