What technology does dmm.com use?

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

Is dmm.com secure (HTTPS)?

Yes. dmm.com uses TLS 1.3 with a certificate issued by GlobalSign nv-sa, valid until Mar 24, 2027.

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

What is dmm.com's SEO score?

dmm.com scored 70/100 for SEO in the latest analysis (fair).

What is dmm.com's overall website score?

dmm.com has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.

Has dmm.com's score changed over time?

dmm.com's overall score has declined by 2 points (from 79 to 77) since Jul 24, 2026.

dmm.com

DMM.com - DMM TV・ゲーム・動画・電子書籍・英会話・FX等の総合サイト

Last scanned Jul 31, 2026, 7:00 PM · 8 views

Overall score

Fair

Summary

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�… SEO is fair (70/100) and accessibility is good (75/100). Security scores good (75/100) and performance excellent (90/100). Top issue: Title longer than 60 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。

Top issues to fix

11 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.
No H1 heading found
SEO
Add exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
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.
3 cookies without Secure/HttpOnly flags
Security
Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEO
Shorten the title to under 60 characters so search results don't truncate it.

+5 more issues — details in the sections below.

SEO

5 issue(s) found

Performance

832 ms

Security

HTTPS & header checks

Accessibility

2 issue(s) found

Score history

-2 overall since Jul 24, 2026

Overall: 77
SEO: 70
Security: 75
Performance: 90
Accessibility: 75

Organization

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

X (Twitter)Facebook Instagram YouTube

Meta tags

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
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。
Canonical: https://www.dmm.com
Language: ja
Charset: UTF-8
Viewport: width=1024
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: CloudFront
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: GlobalSign nv-sa
Subject: *.dmm.com
Valid from: Feb 20, 2026
Valid to: Mar 24, 2027
Days until expiry: 235
SAN domains: *.dmm.com, dmm.com

Security headers

Strict-Transport-SecurityMissing
Content-Security-PolicyEnabled
X-Frame-OptionsMissing
X-Content-Type-OptionsMissing
Referrer-PolicyMissing
Permissions-PolicyMissing

Compression: gzip · 3 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

0 internal · 280 external · 20 broken

Images

299 total · 65 missing alt

Scripts / Styles

37 scripts · 3 stylesheets

JS / CSS size

2.2 KB · 809 B

Page size

433 KB

Robots.txt & Sitemap

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

SEO issues

Title longer than 60 characters
Meta description longer than 160 characters
No H1 heading found
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://dmm.com
Final URL: https://www.dmm.com:443/
HTTP status: 200
HTTP version: HTTP/2
Response time: 824 ms
HTML size: 433 KB
Redirect chain: https://dmm.com → https://www.dmm.com:443/

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Frequently asked questions

What technology does dmm.com use?: We did not detect any specific technologies for dmm.com in the latest scan.
Is dmm.com secure (HTTPS)?: Yes. dmm.com uses TLS 1.3 with a certificate issued by GlobalSign nv-sa, valid until Mar 24, 2027.
Who hosts dmm.com?: Hosting provider information for dmm.com is not available yet.
What is dmm.com's SEO score?: dmm.com scored 70/100 for SEO in the latest analysis (fair).
What is dmm.com's overall website score?: dmm.com has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
Has dmm.com's score changed over time?: dmm.com's overall score has declined by 2 points (from 79 to 77) since Jul 24, 2026.