sudoku-online.org
Sudoku Online y Pasatiempos
Last scanned Jul 26, 2026, 12:19 PM
Overall score
Excellent
Summary
Juega al sudoku online tantas veces como quieras. This website uses Nginx hosted on DigitalOcean. SEO is excellent (100/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100).
Sudoku Online
Juega al sudoku online tantas veces como quieras. Tenemos distintos niveles y tamaños de sudokus. Y disfruta de nuestros pasatiempos diarios!
- Marqués de Pidal 7, Oviedo, Asturias, 33004, ES
- Hosted on DigitalOcean
Top issues to fix
4 issues found · 2 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing X-Content-Type-Options header
SecurityAdd X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
SecurityAdd X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
SEO
0 issue(s) found
Performance
537 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Sudoku Online
Juega al sudoku online tantas veces como quieras. Tenemos distintos niveles y tamaños de sudokus. Y disfruta de nuestros pasatiempos diarios!
Contact
Email, phone, and address published on this site's own pages.
- imanolif@gmail.com
- Address
- Marqués de Pidal 7, Oviedo, Asturias, 33004, ES
Meta tags
- Title
- Sudoku Online y Pasatiempos
- Description
- Juega al sudoku online tantas veces como quieras. Tenemos distintos niveles y tamaños de sudokus. Y disfruta de nuestros pasatiempos diarios!
- Canonical
- https://www.sudoku-online.org
- Language
- es
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- Manifest
- https://www.sudoku-online.org/manifest.json
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- DigitalOcean
- CDN provider
- —
- IP address
- 159.65.203.183
- ASN
- AS14061 (DIGITALOCEAN-ASN - DigitalOcean, LLC, US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Let's Encrypt
- Subject
- sudoku-online.org
- Valid from
- Jun 20, 2026
- Valid to
- Sep 18, 2026
- Days until expiry
- 51
- SAN domains
- sudoku-online.org, www.sudoku-online.org
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 6 · H3 3
Links
91 internal · 4 external · 0 broken
Images
37 total · 0 missing alt
Scripts / Styles
14 scripts · 1 stylesheets
JS / CSS size
488 KB · 90.3 KB
Page size
74.0 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 1
- sitemap.xml
- Found
- URLs in sitemap
- 58
SEO issues
No SEO issues detected.
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://sudoku-online.org
- Final URL
- https://www.sudoku-online.org/
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 536 ms
- HTML size
- 74.0 KB
- Redirect chain
- https://sudoku-online.org → http://www.sudoku-online.org/ → https://www.sudoku-online.org/
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Frequently asked questions
- What technology does sudoku-online.org use?
- sudoku-online.org is built with Google Analytics, Google Ads, Nginx.
- Is sudoku-online.org secure (HTTPS)?
- Yes. sudoku-online.org uses TLS 1.3 with a certificate issued by Let's Encrypt, valid until Sep 18, 2026.
- Who hosts sudoku-online.org?
- sudoku-online.org is hosted on DigitalOcean.
- What is sudoku-online.org's SEO score?
- sudoku-online.org scored 100/100 for SEO in the latest analysis (excellent).
- What is sudoku-online.org's overall website score?
- sudoku-online.org has an overall SiteGraph score of 91/100, combining SEO, performance, security, and accessibility.
- What company operates sudoku-online.org?
- sudoku-online.org is operated by Sudoku Online. Juega al sudoku online tantas veces como quieras. Tenemos distintos niveles y tamaños de sudokus. Y disfruta de nuestros pasatiempos diarios!
OpenGraph & Twitter Card
OpenGraph
Twitter Card