nyt-sudoku.net
is an active domain
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Overview
nyt-sudoku.net is an active, reachable domain. It resolves to 4 IP addresses (104.21.0.87, 172.67.150.198, 2606:4700:3030::6815:57...). DNS is served by 2 nameservers (liberty.ns.cloudflare.com). The web server responded with HTTP status 200 via cloudflare.
The site presents an SSL/TLS certificate issued by Google Trust Services, valid for another 44 days. The connection negotiates TLSv1.3.
Mail is handled by 3 MX records. Published email-authentication records: SPF.
No common HTTP security headers (HSTS, CSP, X-Frame-Options, ...) were detected. This domain has been tracked in our index for 3 days.
This report focuses on signals that affect crawlability and visibility in Google: DNS configuration, HTTP/HTTPS availability, SSL/TLS, security headers, and technical SEO checks.
How to read DNS, MX, NS
A records show where the site is hosted. Multiple A records can mean load-balancing or CDNs. MX records indicate which mail servers accept mail for the domain; missing MX often blocks inbound email. NS records list authoritative nameservers - mismatches or slow NS can cause resolution errors.
SSL/TLS interpretation
The SSL issuer and validity period show whether browsers will trust the site. Expired or self-signed certs trigger warnings. If HTTP responds but HTTPS fails, redirect traffic to HTTPS and renew certificates (Let's Encrypt or commercial CA) to avoid SEO and security penalties.
Email security (SPF/DMARC/DKIM)
SPF lists IPs/hosts allowed to send mail for the domain. DMARC enforces how receivers treat mail that fails SPF/DKIM and where to send reports. Missing or relaxed DMARC makes phishing easier. Align SPF/DKIM with your sending services and move DMARC to quarantine or reject once passes are confirmed.
HTTP status & crawlability
Stable 200/301 responses indicate healthy routing. 4xx/5xx codes block indexing and often signal outages or firewall blocks. Ensure redirects are single-hop, set canonical tags, and keep robots meta/tag rules consistent with your indexing goals.
Frequently Asked Questions
What does domain status mean?
Domain status indicates the current operational state. Active means the domain is working and accessible. Inactive means the domain is registered but not responding. Deleted means the domain appears unregistered or expired.
Why should I check domain information?
Checking a domain's DNS, hosting and status helps identify configuration and security issues and confirm the site is reachable. This is essential for webmasters, security teams, and domain investors.
How can I use this information?
Use this data to verify domain configuration, check SSL certificate validity, monitor email security settings, and research domain history before making decisions about domain management or investment.
Domain Information
- First seen in our index
- Aug 29, 2026 (3 days ago)
- A Records
-
- 104.21.0.87
- 172.67.150.198
- 2606:4700:3030::6815:57
- 2606:4700:3032::ac43:96c6
- MX Records
-
- route2.mx.cloudflare.net. (priority: 5)
- route3.mx.cloudflare.net. (priority: 44)
- route1.mx.cloudflare.net. (priority: 91)
- Nameservers
-
- liberty.ns.cloudflare.com
- lee.ns.cloudflare.com
Google / Technical SEO
- Title
- NYT Sudoku - Free Online Daily and Unlimited Sudoku 51 chars
- Meta Description
- Play daily Easy, Medium, and Hard Sudoku plus unlimited generated practice on a fast browser Sudoku board. 106 chars
- Canonical
- Present - https://nyt-sudoku.net/
- Robots Meta
- index, follow
- H1
- 1 (optimal) - NYT Sudoku
- Structured Data (JSON-LD)
- WebSite, ['Game', 'WebApplication'], FAQPage
- Mobile Viewport
- Present
Top Recommendations
- Low Meta description is too short (106 characters). Recommended: 120-160 characters.
- Medium 2 images without alt attributes.
Network / Hosting
- HTTP Status
- 200
- Server
- cloudflare
- IP Addresses
-
104.21.0.87 172.67.150.198 2606:4700:3030::6815:57 2606:4700:3032::ac43:96c6
Security / SSL
- SSL Issuer
- Google Trust Services
- Valid From
- July 18, 2026
- Valid To
- October 16, 2026 44 days remaining
HTTP Security Headers
- HTTP Version
- HTTP/1.1
- TLS Version
- TLSv1.3
- Cipher Suite
- TLS_AES_256_GCM_SHA384
- X-Frame-Options
- Not Found
- X-Content-Type-Options
- Not Found
- Strict-Transport-Security (HSTS)
- Not Found
- Content-Security-Policy (CSP)
- Not Found
- Referrer-Policy
- Not Found
- X-XSS-Protection
- Not Found
Cookies Privacy & Security
- Cookies
- No cookies detected
Technical SEO Analysis
- Title Tag
-
51 characters
NYT Sudoku - Free Online Daily and Unlimited Sudoku
- Meta Description
-
106 characters
Play daily Easy, Medium, and Hard Sudoku plus unlimited generated practice on a fast browser Sudoku board.
- H1 Headings
-
1 found
- • NYT Sudoku
- Canonical URL
-
Found
https://nyt-sudoku.net/
- Viewport Meta
- Found
- Charset
- Found
- Language Attribute
- en
- Images Alt Attributes
- 71/73 with alt
- Page Size
- 173.07 KB
Improvement Recommendations
Meta description is too short (106 characters). Recommended: 120-160 characters.
Increase the meta description length to 120-160 characters for better display in search snippets
2 images without alt attributes.
Add alt attributes to all images to improve accessibility and SEO
Important: The recommendations provided are general advice for improving Technical SEO and are not a call to action. Every site is unique, and some recommendations may not be suitable for your specific case. Always consult with an SEO specialist before making significant changes.
Email Security
- SPF Record
- Found
- DMARC Record
- Not Found
- DKIM Record
- Not Found
- MX Records
- Found
- MTA-STS
- Not Found
- TLS-RPT
- Not Found
- BIMI
- Not Found
Quick Status
Domain Status
Active
HTTP Status
200
Site topic & similar domains
Based on homepage content only - no WHOIS or external databases.
Important Notice
This domain analysis is provided for informational purposes only. Domain information may change at any time, and we cannot guarantee the accuracy or completeness of the data presented. Always verify critical information with your domain registrar or hosting provider. This service does not provide legal advice or guarantee domain availability.