colorado.edu
Home | University of Colorado Boulder
Last scanned Jul 29, 2026, 2:00 PM · 8 views
Overall score
Great
Summary
This website uses Nginx behind Fastly CDN. SEO is fair (70/100) and accessibility is excellent (100/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Missing meta description.
Top issues to fix
7 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
TLS certificate expires in 25 days
SecurityRenew soon or enable auto-renewal to avoid a browser-warning outage.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEOPublish an XML sitemap and reference it from robots.txt to speed up page discovery.
+1 more issue — details in the sections below.
SEO
4 issue(s) found
Performance
12 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Score history
+4 overall since Jul 18, 2026
- Overall
- 89
- SEO
- 70
- Security
- 90
- Performance
- 100
- Accessibility
- 100
Organization
Company details published in this site's own structured data.
Meta tags
- Title
- Home | University of Colorado Boulder
- Description
- Canonical
- https://www.colorado.edu/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- —
- CDN provider
- Fastly
- IP address
- —
- ASN
- —
DNS records
| Type | Value |
|---|---|
| A | — |
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- Certainly
- Subject
- www.colorado.edu
- Valid from
- Jul 25, 2026
- Valid to
- Aug 24, 2026
- Days until expiry
- 25
- SAN domains
- www.colorado.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 1 · H2 11 · H3 1
Links
103 internal · 17 external · 20 broken
Images
7 total · 0 missing alt
Scripts / Styles
11 scripts · 6 stylesheets
JS / CSS size
2.4 KB · 10.1 KB
Page size
84.8 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://colorado.edu
- Final URL
- https://www.colorado.edu/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 11 ms
- HTML size
- 84.8 KB
- Redirect chain
- https://colorado.edu → https://www.colorado.edu/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does colorado.edu use?
- colorado.edu is built with Drupal, jQuery, Nginx.
- Is colorado.edu secure (HTTPS)?
- Yes. colorado.edu uses TLS 1.2 with a certificate issued by Certainly, valid until Aug 24, 2026.
- Who hosts colorado.edu?
- Hosting provider information for colorado.edu is not available yet.
- What is colorado.edu's SEO score?
- colorado.edu scored 70/100 for SEO in the latest analysis (fair).
- What is colorado.edu's overall website score?
- colorado.edu has an overall SiteGraph score of 89/100, combining SEO, performance, security, and accessibility.
- Has colorado.edu's score changed over time?
- colorado.edu's overall score has improved by 4 points (from 85 to 89) since Jul 18, 2026.
OpenGraph & Twitter Card
OpenGraph
Twitter Card