dmm.com
is an active domain
Related pages
Explore similar reports and related email checks for dmm.com.
Email deliverability checks
Overview
dmm.com is currently active and operational. This domain has working DNS records and responds to HTTP/HTTPS requests. The domain is properly configured and accessible on the internet.
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 domain information helps verify ownership, track expiration dates, identify security issues, and ensure proper DNS configuration. 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
- Flagged on
- Dec 29, 2025 (2 months ago)
- A Records
-
- 13.248.196.236
- MX Records
-
- aspmx.l.google.com. (priority: 1)
- alt1.aspmx.l.google.com. (priority: 5)
- alt2.aspmx.l.google.com. (priority: 5)
- alt4.aspmx.l.google.com. (priority: 10)
- alt3.aspmx.l.google.com. (priority: 10)
- Nameservers
-
- a18-66.akam.net
- ns2.p201.dns.oraclecloud.net
- a13-64.akam.net
- a12-67.akam.net
- a14-65.akam.net
- ... and 5 more
Google / Technical SEO
- Title
- DMM.com - DMM TV・ゲーム・動画・電子書籍・英会話・FX等の総合サイト 42 chars
- Meta Description
- アニメ・エンタメ見放題プランや、オンラインゲーム、動画配信、電子書籍をはじめ、通販ショッピングや競輪も楽しめる総合エンタメサイト。他にも話題のオンライン英会話や外貨投資のFX、各種レンタルなど多様なサービスを提供しています。 112 chars
- Canonical
- Present - https://www.dmm.com
- Robots Meta
- -
- H1
- 0
- Structured Data (JSON-LD)
- Unknown
- Mobile Viewport
- Present
Top Recommendations
- Low Meta description is too short (112 characters). Recommended: 120-160 characters.
- High H1 heading is missing.
- Medium 166 images without alt attributes.
Network / Hosting
- HTTP Status
- 200
- Server
- uvicorn
- IP Addresses
-
13.248.196.236
Security / SSL
- SSL Issuer
- Not available
- Valid From
- Not available
- Valid To
- Not available
HTTP Security Headers
- HTTP Version
- HTTP/1.1
- 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
- Total Cookies
- 3
- Secure Cookies
- 2 / 3
- HttpOnly Cookies
- 0 / 3
- SameSite Cookies
- 0 / 3
- Cookie Details
-
- top_pv_uid Secure
- top_dummy Secure
- ckcy
Technical SEO Analysis
- Title Tag
-
42 characters
DMM.com - DMM TV・ゲーム・動画・電子書籍・英会話・FX等の総合サイト
- Meta Description
-
112 characters
アニメ・エンタメ見放題プランや、オンラインゲーム、動画配信、電子書籍をはじめ、通販ショッピングや競輪も楽しめる総合エンタメサイト。他にも話題のオンライン英会話や外貨投資のFX、各種レンタルなど多様なサービスを提供しています。
- H1 Headings
- 0 found
- Canonical URL
-
Found
https://www.dmm.com
- Viewport Meta
- Found
- Charset
- Found
- Language Attribute
- ja
- Images Alt Attributes
- 111/277 with alt
- Page Size
- 401.78 KB
Improvement Recommendations
Meta description is too short (112 characters). Recommended: 120-160 characters.
Increase the meta description length to 120-160 characters for better display in search snippets
H1 heading is missing.
Add one H1 heading to the page for better SEO optimization
166 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
- Found
- DKIM Record
- Found
- MX Records
- Found
- MTA-STS
- Not Found
- TLS-RPT
- Not Found
- BIMI
- Not Found
Quick Status
Domain Status
Active
HTTP Status
200
Topical Similarity and Theme Detection
?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.