What technology does livesudoku.com use?

We did not detect any specific technologies for livesudoku.com in the latest scan.

Is livesudoku.com secure (HTTPS)?

Yes. livesudoku.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 10, 2026.

Who hosts livesudoku.com?

Hosting provider information for livesudoku.com is not available yet.

What is livesudoku.com's SEO score?

livesudoku.com scored 90/100 for SEO in the latest analysis (excellent).

What is livesudoku.com's overall website score?

livesudoku.com has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.

Has livesudoku.com's score changed over time?

livesudoku.com's overall score has declined by 2 points (from 90 to 88) since Jul 26, 2026.

livesudoku.com

Sudoku Online - Play for Free | Live Sudoku

Last scanned Aug 2, 2026, 8:00 PM · 11 views

Overall score

Great

Summary

Play free Sudoku online at Live Sudoku. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: robots.txt not found.

Play free Sudoku online at Live Sudoku. Easy, medium, hard, and evil puzzles, multiplayer games, daily challenges, and free printable PDFs. No sign-up.

Top issues to fix

7 issues found · 2 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 X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
Missing X-Frame-Options header
Security
Add X-Frame-Options (or a CSP frame-ancestors rule) to prevent clickjacking via hidden iframes.
robots.txt not found
SEO
Publish /robots.txt with a Sitemap: directive to guide crawlers.
sitemap.xml not found
SEO
Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

+1 more issue — details in the sections below.

SEO

2 issue(s) found

100

Performance

543 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-2 overall since Jul 26, 2026

Overall: 88
SEO: 90
Security: 65
Performance: 100
Accessibility: 100

Organization

Company details published in this site's own structured data.

Play free Sudoku online at Live Sudoku. Easy, medium, hard, and evil puzzles, multiplayer games, daily challenges, and free printable PDFs. No sign-up.

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Meta tags

Title: Sudoku Online - Play for Free | Live Sudoku
Description: Play free Sudoku online at Live Sudoku. Easy, medium, hard, and evil puzzles, multiplayer games, daily challenges, and free printable PDFs. No sign-up.
Canonical: https://www.livesudoku.com/
Language: en
Charset: utf-8
Viewport: width=device-width, initial-scale=1
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: Cloudflare
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.3
Issuer: Google Trust Services
Subject: livesudoku.com
Valid from: Jun 12, 2026
Valid to: Sep 10, 2026
Days until expiry: 38
SAN domains: livesudoku.com, *.livesudoku.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 1 · H2 7 · H3 2

Links

78 internal · 6 external · 20 broken

Images

30 total · 0 missing alt

Scripts / Styles

10 scripts · 0 stylesheets

JS / CSS size

5.3 KB · 42.8 KB

Page size

98.5 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://livesudoku.com
Final URL: https://www.livesudoku.com/
HTTP status: 200
HTTP version: HTTP/2
Response time: 541 ms
HTML size: 98.5 KB
Redirect chain: https://livesudoku.com → https://www.livesudoku.com/

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Frequently asked questions

What technology does livesudoku.com use?: We did not detect any specific technologies for livesudoku.com in the latest scan.
Is livesudoku.com secure (HTTPS)?: Yes. livesudoku.com uses TLS 1.3 with a certificate issued by Google Trust Services, valid until Sep 10, 2026.
Who hosts livesudoku.com?: Hosting provider information for livesudoku.com is not available yet.
What is livesudoku.com's SEO score?: livesudoku.com scored 90/100 for SEO in the latest analysis (excellent).
What is livesudoku.com's overall website score?: livesudoku.com has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
Has livesudoku.com's score changed over time?: livesudoku.com's overall score has declined by 2 points (from 90 to 88) since Jul 26, 2026.