oatbeam.com
数独工坊 — 免费在线数独，附完整解法教程 | Oatbeam
Last scanned Aug 24, 2026, 1:14 PM · 1 view
Overall score
Great
Summary
数独工坊提供四种难度的免费在线数独，无需注册、可离线游玩。并附有从入门到进阶的完整数独解题技巧教程：唯一候选法、区块摒除、数对、X-Wing 等。. This website uses Google Analytics hosted on ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN. SEO is excellent (90/100) and accessibility is excellent (100/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
数独工坊提供四种难度的免费在线数独，无需注册、可离线游玩。并附有从入门到进阶的完整数独解题技巧教程：唯一候选法、区块摒除、数对、X-Wing 等。
- Singapore
- Hosted on ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN
Top issues to fix
6 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.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
SEO
2 issue(s) found
Performance
130 ms
Security
HTTPS & header checks
Accessibility
0 issue(s) found
Organization
Company details published in this site's own structured data.
数独工坊提供四种难度的免费在线数独，无需注册、可离线游玩。并附有从入门到进阶的完整数独解题技巧教程：唯一候选法、区块摒除、数对、X-Wing 等。
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- 数独工坊 — 免费在线数独，附完整解法教程 | Oatbeam
- Description
- 数独工坊提供四种难度的免费在线数独，无需注册、可离线游玩。并附有从入门到进阶的完整数独解题技巧教程：唯一候选法、区块摒除、数对、X-Wing 等。
- Canonical
- https://oatbeam.com/
- Language
- zh-CN
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1.0
- Robots meta
- index, follow, max-image-preview:large
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN
- CDN provider
- —
- IP address
- 8.219.65.177
- ASN
- AS45102 (ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA |
|
| MX | — |
| TXT | — |
| NS |
|
| CAA | — |
| CNAME |
|
| IPv6 support | Yes |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Beijing Xinchacha Credit Management Co., Ltd.
- Subject
- *.oatbeam.com
- Valid from
- May 12, 2026
- Valid to
- Nov 27, 2026
- Days until expiry
- 94
- SAN domains
- *.oatbeam.com, oatbeam.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 3 · H3 13
Links
6 internal · 0 external · 0 broken
Images
0 total · 0 missing alt
Scripts / Styles
8 scripts · 1 stylesheets
JS / CSS size
851 KB · 46.4 KB
Page size
39.3 KB
Robots.txt & Sitemap
- robots.txt
- Found
- Disallow rules
- 0
- sitemap.xml
- Found
- URLs in sitemap
- 6
SEO issues
- Title longer than 60 characters
- Meta description longer than 160 characters
Accessibility issues
No accessibility issues detected.
Scan details
- Requested URL
- https://oatbeam.com
- Final URL
- https://oatbeam.com
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 130 ms
- HTML size
- 39.3 KB
- Redirect chain
- https://oatbeam.com
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does oatbeam.com use?
- oatbeam.com is built with Tailwind CSS, Google Analytics, Google Ads.
- Is oatbeam.com secure (HTTPS)?
- Yes. oatbeam.com uses TLS 1.3 with a certificate issued by Beijing Xinchacha Credit Management Co., Ltd., valid until Nov 27, 2026.
- Who hosts oatbeam.com?
- oatbeam.com is hosted on ALIBABA-CN-NET - Alibaba (US) Technology Co., Ltd., CN.
- What is oatbeam.com's SEO score?
- oatbeam.com scored 90/100 for SEO in the latest analysis (excellent).
- What is oatbeam.com's overall website score?
- oatbeam.com has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card