What technology does clemson.edu use?

clemson.edu is built with PHP, Apache.

Is clemson.edu secure (HTTPS)?

Yes. clemson.edu uses TLS 1.2 with a certificate issued by Internet2, valid until Apr 9, 2027.

Who hosts clemson.edu?

clemson.edu is hosted on CLEMSONU - Clemson University, US.

What is clemson.edu's SEO score?

clemson.edu scored 85/100 for SEO in the latest analysis (great).

What is clemson.edu's overall website score?

clemson.edu has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.

clemson.edu

Clemson University, South Carolina

Last scanned Jul 21, 2026, 12:33 PM · 1 view

Overall score

Great

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.
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.
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.

Summary

Clemson University is a leading public research institution located in Upstate South Carolina. This website uses PHP hosted on CLEMSONU - Clemson University, US. SEO is good (85/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance good (80/100). Top issue: Multiple H1 headings found.

SEO

2 issue(s) found

Performance

564 ms

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.

YouTube Facebook Instagram X (Twitter)LinkedIn YouTube

Contact

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

Email: OWS@CLEMSON.EDU

Meta tags

Title: Clemson University, South Carolina
Description: Clemson University is a leading public research institution located in Upstate South Carolina. Here, researchers create solutions that change the world.
Canonical: https://www.clemson.edu/
Language: en-US
Charset: UTF-8
Viewport: width=device-width, initial-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

PHP Apache

Hosting & CDN

Hosting provider: CLEMSONU - Clemson University, US
CDN provider: —
IP address: 130.127.204.30
ASN: AS12148 (CLEMSONU - Clemson University, US)

DNS records

Type	Value
A	130.127.204.30
AAAA	2620:103:a004:36::30
MX	—
TXT	—
NS	—
CAA	—
CNAME	www.l.clemson.edu
IPv6 support	Yes

TLS / SSL certificate

Version: TLS 1.2
Issuer: Internet2
Subject: clemson.edu
Valid from: Mar 9, 2026
Valid to: Apr 9, 2027
Days until expiry: 262
SAN domains: clemson.edu, *.clemson.edu

Security headers

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

Compression: gzip · 1 cookie(s) observed

Content & assets

Headings

H1 2 · H2 25 · H3 28

Links

111 internal · 35 external · 0 broken

Images

30 total · 0 missing alt

Scripts / Styles

10 scripts · 2 stylesheets

JS / CSS size

576 KB · 2.2 MB

Page size

398 KB

Robots.txt & Sitemap

robots.txt: Found
Disallow rules: 4
sitemap.xml: Found
URLs in sitemap: 98

SEO issues

Multiple H1 headings found
No structured data (JSON-LD) found

Scan details

Requested URL: https://clemson.edu
Final URL: https://www.clemson.edu/
HTTP status: 200
HTTP version: HTTP/1.1
Response time: 556 ms
HTML size: 398 KB
Redirect chain: https://clemson.edu → https://www.clemson.edu/

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Frequently asked questions

What technology does clemson.edu use?: clemson.edu is built with PHP, Apache.
Is clemson.edu secure (HTTPS)?: Yes. clemson.edu uses TLS 1.2 with a certificate issued by Internet2, valid until Apr 9, 2027.
Who hosts clemson.edu?: clemson.edu is hosted on CLEMSONU - Clemson University, US.
What is clemson.edu's SEO score?: clemson.edu scored 85/100 for SEO in the latest analysis (great).
What is clemson.edu's overall website score?: clemson.edu has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.