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SGSiteGraph

sdsc.edu

San Diego Supercomputer Center

Last scanned Jul 26, 2026, 5:17 AM · 1 view

80

Overall score

Great

Summary

Leading the way in high-performance computing and data-intensive research. This website uses Apache. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.

Leading the way in high-performance computing and data-intensive research. Discover advanced cyberinfrastructure, cutting-edge supercomputers, and expert services for scientific innovation.

United States

Top issues to fix

9 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.

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

  • Missing canonical link

    SEO

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

+3 more issues — details in the sections below.

70

SEO

5 issue(s) found

90

Performance

1.38 s

65

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.

Leading the way in high-performance computing and data-intensive research. Discover advanced cyberinfrastructure, cutting-edge supercomputers, and expert services for scientific innovation.

FacebookX (Twitter)InstagramLinkedInYouTube

Meta tags

Title
San Diego Supercomputer Center
Description
Leading the way in high-performance computing and data-intensive research. Discover advanced cyberinfrastructure, cutting-edge supercomputers, and expert services for scientific innovation.
Canonical
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1
Robots meta
Manifest
https://www.sdsc.edu/_files/images/site.webmanifest

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.

BootstrapGoogle AnalyticsApache

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
132.249.112.52
ASN
AS195 ()

DNS records

TypeValue
A
  • 132.249.112.52
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.3
Issuer
Internet2
Subject
www.sdsc.edu
Valid from
Nov 10, 2025
Valid to
Nov 10, 2026
Days until expiry
107
SAN domains
www.sdsc.edu, expanse.sdsc.edu, sc23.sdsc.edu, sc24.sdsc.edu, sdsc.edu, tritoncluster.sdsc.edu, tscc.sdsc.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 5 · H3 8

Links

61 internal · 9 external · 0 broken

Images

10 total · 0 missing alt

Scripts / Styles

6 scripts · 7 stylesheets

JS / CSS size

8.8 KB · 75.1 KB

Page size

47.7 KB

Robots.txt & Sitemap

robots.txt
Not found
Disallow rules
0
sitemap.xml
Found
URLs in sitemap
924

SEO issues

  • Meta description longer than 160 characters
  • Missing canonical link
  • No structured data (JSON-LD) found
  • Missing OpenGraph tags
  • robots.txt not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://sdsc.edu
Final URL
https://www.sdsc.edu/
HTTP status
200
HTTP version
HTTP/2
Response time
1.38 s
HTML size
47.7 KB
Redirect chain
https://sdsc.edu → https://www.sdsc.edu/

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does sdsc.edu use?
sdsc.edu is built with Bootstrap, Google Analytics, Apache.
Is sdsc.edu secure (HTTPS)?
Yes. sdsc.edu uses TLS 1.3 with a certificate issued by Internet2, valid until Nov 10, 2026.
Who hosts sdsc.edu?
Hosting provider information for sdsc.edu is not available yet.
What is sdsc.edu's SEO score?
sdsc.edu scored 70/100 for SEO in the latest analysis (fair).
What is sdsc.edu's overall website score?
sdsc.edu has an overall SiteGraph score of 80/100, combining SEO, performance, security, and accessibility.