sudokubliss.com
Sudoku Online - Solve Web Sudoku Puzzles | 100% Free
Last scanned Aug 24, 2026, 1:21 PM · 1 view
Overall score
Excellent
Summary
Solve sudoku puzzles online, 100% free. This website uses Express hosted on AWS behind CloudFront CDN. SEO is excellent (95/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Multiple H1 headings found.
Solve sudoku puzzles online, 100% free. Play unlimited games and choose difficulty levels. To play, place numbers 1 through 9 in boxes, columns, and rows.
- United States
- Hosted on AWS
Top issues to fix
5 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.
Multiple H1 headings found
SEOKeep a single H1 per page and demote the others to H2/H3.
SEO
1 issue(s) found
Performance
765 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
Solve sudoku puzzles online, 100% free. Play unlimited games and choose difficulty levels. To play, place numbers 1 through 9 in boxes, columns, and rows.
Contact
Email, phone, and address published on this site's own pages.
- name@example.com
Meta tags
- Title
- Sudoku Online - Solve Web Sudoku Puzzles | 100% Free
- Description
- Solve sudoku puzzles online, 100% free. Play unlimited games and choose difficulty levels. To play, place numbers 1 through 9 in boxes, columns, and rows.
- Canonical
- https://sudokubliss.com/
- Language
- en
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1, shrink-to-fit=no
- Robots meta
- Manifest
- https://sudokubliss.com/manifest.webmanifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- CloudFront
- IP address
- 13.227.249.18
- ASN
- AS16509 (AMAZON-02 - Amazon.com, Inc., US)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX |
|
| TXT |
|
| NS |
|
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Amazon
- Subject
- sudoku.com.au
- Valid from
- Mar 29, 2026
- Valid to
- Oct 12, 2026
- Days until expiry
- 49
- SAN domains
- sudoku.com.au, sudokubliss.com
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 2 · H2 6 · H3 6
Links
83 internal · 4 external · 0 broken
Images
28 total · 0 missing alt
Scripts / Styles
25 scripts · 4 stylesheets
JS / CSS size
130 KB · 185 KB
Page size
79.1 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 1
- sitemap.xml
- Found
- URLs in sitemap
- 840
SEO issues
- Multiple H1 headings found
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://sudokubliss.com
- Final URL
- https://sudokubliss.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 764 ms
- HTML size
- 79.1 KB
- Redirect chain
- https://sudokubliss.com
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Frequently asked questions
- What technology does sudokubliss.com use?
- sudokubliss.com is built with Express, Node.js, Bootstrap, jQuery, Google Analytics, Google Ads.
- Is sudokubliss.com secure (HTTPS)?
- Yes. sudokubliss.com uses TLS 1.3 with a certificate issued by Amazon, valid until Oct 12, 2026.
- Who hosts sudokubliss.com?
- sudokubliss.com is hosted on AWS, behind CloudFront CDN.
- What is sudokubliss.com's SEO score?
- sudokubliss.com scored 95/100 for SEO in the latest analysis (excellent).
- What is sudokubliss.com's overall website score?
- sudokubliss.com has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card