duoc.cl
Blackboard - Certificados :: DUOC UC
Last scanned Jul 27, 2026, 4:43 PM
Overall score
Great
Summary
This website uses PHP hosted on ORACLE-BMC-31898 - Oracle Corporation, US. SEO is fair (50/100) and accessibility is good (80/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Missing meta description.
- United States
- Hosted on ORACLE-BMC-31898 - Oracle Corporation, US
Top issues to fix
9 issues found · 2 high priority
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
1 cookie without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEOAdd og:title/og:description/og:image so shared links render a proper preview card.
+3 more issues — details in the sections below.
SEO
7 issue(s) found
Performance
460 ms
Security
HTTPS & header checks
Accessibility
2 issue(s) found
Meta tags
- Title
- Blackboard - Certificados :: DUOC UC
- Description
- Canonical
- Language
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- ORACLE-BMC-31898 - Oracle Corporation, US
- CDN provider
- —
- IP address
- 136.248.244.61
- ASN
- AS31898 (ORACLE-BMC-31898 - Oracle Corporation, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT | — |
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.2
- Issuer
- GlobalSign nv-sa
- Subject
- *.duoc.cl
- Valid from
- Dec 24, 2025
- Valid to
- Jan 17, 2027
- Days until expiry
- 174
- SAN domains
- *.duoc.cl, duoc.cl
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyEnabled
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyEnabled
- Permissions-PolicyEnabled
Compression: none · 1 cookie(s) observed
Content & assets
Headings
H1 0 · H2 1 · H3 0
Links
0 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
11 scripts · 6 stylesheets
JS / CSS size
434 KB · 287 KB
Page size
5.1 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Missing meta description
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- Missing OpenGraph tags
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
- Missing <html lang> attribute
Scan details
- Requested URL
- https://duoc.cl
- Final URL
- https://duoc.cl
- HTTP status
- 500
- HTTP version
- HTTP/1.1
- Response time
- 460 ms
- HTML size
- 5.1 KB
- Redirect chain
- https://duoc.cl
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does duoc.cl use?
- duoc.cl is built with PHP, Bootstrap, jQuery.
- Is duoc.cl secure (HTTPS)?
- Yes. duoc.cl uses TLS 1.2 with a certificate issued by GlobalSign nv-sa, valid until Jan 17, 2027.
- Who hosts duoc.cl?
- duoc.cl is hosted on ORACLE-BMC-31898 - Oracle Corporation, US.
- What is duoc.cl's SEO score?
- duoc.cl scored 50/100 for SEO in the latest analysis (fair).
- What is duoc.cl's overall website score?
- duoc.cl has an overall SiteGraph score of 81/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card