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SGSiteGraph

gemini.edu

Gemini Observatory |

Last scanned Jul 26, 2026, 5:47 AM

89

Overall score

Great

Summary

This website uses Nginx hosted on AWS. SEO is good (80/100) and accessibility is excellent (100/100). Security scores good (80/100) and performance excellent (100/100). Top issue: Missing meta description.

United States
Hosted on AWS

Top issues to fix

5 issues found · 3 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 meta description

    SEO

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

  • No structured data (JSON-LD) found

    SEO

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

  • 4 broken links on the page

    SEO

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

80

SEO

2 issue(s) found

100

Performance

827 ms

80

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)InstagramYouTube

Contact

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

Source: https://gemini.edu/contact

Meta tags

Title
Gemini Observatory |
Description
Canonical
https://www.gemini.edu/
Language
en
Charset
utf-8
Viewport
width=device-width, initial-scale=1.0
Robots meta
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
Gemini Observatory
og:description
—
og:type
website
og:url
https://www.gemini.edu/

Twitter Card

twitter:card
summary
twitter:title
Gemini Observatory
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

DrupaljQueryNginx

Hosting & CDN

Hosting provider
AWS
CDN provider
—
IP address
52.38.58.189
ASN
AS16509 (AMAZON-02 - Amazon.com, Inc., US)

DNS records

TypeValue
A
  • 52.38.58.189
  • 52.39.4.58
  • 35.83.130.26
AAAA—
MX
  • alt3.aspmx.l.google.com
  • alt4.aspmx.l.google.com
  • alt2.aspmx.l.google.com
  • aspmx.l.google.com
  • alt1.aspmx.l.google.com
TXT—
NS
  • ns-1803.awsdns-33.co.uk
  • ns-106.awsdns-13.com
  • ns-1293.awsdns-33.org
  • ns-957.awsdns-55.net
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.2
Issuer
Amazon
Subject
gemini.edu
Valid from
Sep 29, 2025
Valid to
Oct 28, 2026
Days until expiry
94
SAN domains
gemini.edu, www.gemini.edu, www-edit.gemini.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 3 · H3 18

Links

137 internal · 14 external · 4 broken

Images

23 total · 1 missing alt

Scripts / Styles

16 scripts · 0 stylesheets

JS / CSS size

312 KB · 1.3 KB

Page size

65.5 KB

Robots.txt & Sitemap

robots.txt
Found
Disallow rules
36
sitemap.xml
Found
URLs in sitemap
342

SEO issues

  • Missing meta description
  • No structured data (JSON-LD) found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://gemini.edu
Final URL
https://gemini.edu
HTTP status
200
HTTP version
HTTP/2
Response time
826 ms
HTML size
65.5 KB
Redirect chain
https://gemini.edu

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does gemini.edu use?
gemini.edu is built with Drupal, jQuery, Nginx.
Is gemini.edu secure (HTTPS)?
Yes. gemini.edu uses TLS 1.2 with a certificate issued by Amazon, valid until Oct 28, 2026.
Who hosts gemini.edu?
gemini.edu is hosted on AWS.
What is gemini.edu's SEO score?
gemini.edu scored 80/100 for SEO in the latest analysis (great).
What is gemini.edu's overall website score?
gemini.edu has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.