What technology does duga.jp use?

duga.jp is built with Google Analytics, Apache.

Is duga.jp secure (HTTPS)?

Yes. duga.jp uses TLS 1.2 with a certificate issued by DigiCert Inc, valid until Sep 1, 2026.

Hosting provider information for duga.jp is not available yet.

What is duga.jp's SEO score?

duga.jp scored 60/100 for SEO in the latest analysis (fair).

What is duga.jp's overall website score?

duga.jp has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.

Has duga.jp's score changed over time?

duga.jp's overall score has improved by 2 points (from 82 to 84) since Jul 26, 2026.

duga.jp

DUGA（デュガ） | アダルト動画 - マニア、フェチから女優まで

Last scanned Aug 3, 2026, 12:00 AM · 10 views

Overall score

Great

Summary

DUGAは国内986メーカーの13万作品を取り扱うアダルト動画サイト。おかげさまで開設19周年。会員数150万人を突破！全作品のサンプル動画を無料配信中。マルチデバ��… This website uses Apache. SEO is fair (60/100) and accessibility is excellent (100/100). Security scores good (85/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.

DUGAは国内986メーカーの13万作品を取り扱うアダルト動画サイト。おかげさまで開設19周年。会員数150万人を突破！全作品のサンプル動画を無料配信中。マルチデバイス対応。

Top issues to fix

12 issues found · 1 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
TLS certificate expires in 29 days
Security
Renew soon or enable auto-renewal to avoid a browser-warning outage.
Missing X-Content-Type-Options header
Security
Add X-Content-Type-Options: nosniff to stop MIME-sniffing attacks.
2 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.
Meta description longer than 160 characters
SEO
Trim the meta description to under 160 characters to avoid truncation in search results.

+6 more issues — details in the sections below.

SEO

7 issue(s) found

100

Performance

155 ms

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

+2 overall since Jul 26, 2026

Overall: 84
SEO: 60
Security: 85
Performance: 100
Accessibility: 100

Organization

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

Meta tags

Title: DUGA（デュガ） | アダルト動画 - マニア、フェチから女優まで
Description: DUGAは国内986メーカーの13万作品を取り扱うアダルト動画サイト。おかげさまで開設19周年。会員数150万人を突破！全作品のサンプル動画を無料配信中。マルチデバイス対応。
Canonical
Language: ja
Charset: utf-8
Viewport: width=device-width
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

Google Analytics Apache

Hosting & CDN

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

DNS records

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

TLS / SSL certificate

Version: TLS 1.2
Issuer: DigiCert Inc
Subject: duga.jp
Valid from: Aug 7, 2025
Valid to: Sep 1, 2026
Days until expiry: 29
SAN domains: www.duga.jp, duga.jp

Security headers

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

Compression: none · 2 cookie(s) observed

Content & assets

Headings

H1 1 · H2 0 · H3 0

Links

1 internal · 1 external · 2 broken

Images

1 total · 0 missing alt

Scripts / Styles

4 scripts · 1 stylesheets

JS / CSS size

608 B · 0 B

Page size

16.2 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
Missing canonical link
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://duga.jp
Final URL: https://duga.jp
HTTP status: 200
HTTP version: HTTP/2
Response time: 155 ms
HTML size: 16.2 KB
Redirect chain: https://duga.jp

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Frequently asked questions

What technology does duga.jp use?: duga.jp is built with Google Analytics, Apache.
Is duga.jp secure (HTTPS)?: Yes. duga.jp uses TLS 1.2 with a certificate issued by DigiCert Inc, valid until Sep 1, 2026.
Who hosts duga.jp?: Hosting provider information for duga.jp is not available yet.
What is duga.jp's SEO score?: duga.jp scored 60/100 for SEO in the latest analysis (fair).
What is duga.jp's overall website score?: duga.jp has an overall SiteGraph score of 84/100, combining SEO, performance, security, and accessibility.
Has duga.jp's score changed over time?: duga.jp's overall score has improved by 2 points (from 82 to 84) since Jul 26, 2026.

Top issues to fix

Score history

Organization

Meta tags

OpenGraph & Twitter Card

Technologies

Hosting & CDN

DNS records

TLS / SSL certificate

Security headers

Content & assets

Robots.txt & Sitemap

SEO issues

Accessibility issues

Scan details

Related websites

Frequently asked questions