What technology does dlsite.jp use?

dlsite.jp is built with Apache.

Is dlsite.jp secure (HTTPS)?

Yes. dlsite.jp uses TLS 1.2 with a certificate issued by Amazon, valid until Oct 23, 2026.

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

What is dlsite.jp's SEO score?

dlsite.jp scored 35/100 for SEO in the latest analysis (poor).

What is dlsite.jp's overall website score?

dlsite.jp has an overall SiteGraph score of 67/100, combining SEO, performance, security, and accessibility.

Has dlsite.jp's score changed over time?

dlsite.jp's overall score has declined by 1 point (from 68 to 67) since Jul 26, 2026.

dlsite.jp

Last scanned Aug 3, 2026, 8:00 AM · 6 views

Overall score

Fair

Summary

This website uses Apache. SEO is poor (35/100) and accessibility is good (75/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing <title>.

Top issues to fix

14 issues found · 6 high priority

Missing Strict-Transport-Security header
Security
Add HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
Security
Add a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing title tag
SEO
Add a unique, descriptive <title> tag — it's the single most important on-page SEO element.
Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
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 viewport meta tag
Accessibility
Add <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.

+8 more issues — details in the sections below.

SEO

8 issue(s) found

100

Performance

146 ms

Security

HTTPS & header checks

Accessibility

3 issue(s) found

Score history

-1 overall since Jul 26, 2026

Overall: 67
SEO: 35
Security: 65
Performance: 100
Accessibility: 75

Technologies

Detected frameworks, languages, and tools.

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: Amazon
Subject: njym.jp
Valid from: Apr 9, 2026
Valid to: Oct 23, 2026
Days until expiry: 81
SAN domains: njym.jp, dlsite.net, *.m.b.dlsite.net, *.cmipo.jp, *.m.dlsite.net, *.stg.vivsh.jp, *.stg.nijiyome.jp, *.b.dlsite.net, *.eissh.jp, nijiyome.jp, *.nijiyome.com, *.b-dev.m.dlsite.net, girlsmaniax.com, cmipo.jp, *.dlst.jp, eissh.jp, *.girlsmaniax.com, *.dlsite.jp, dlsite.com, *.dlsite.com, b.dlsite.net, dlsite.jp, *.nijiyome.jp, vivsh.jp, m.dlsite.net, *.stg.eissh.jp, *.b.m.dlsite.net, *.b-dev.dlsite.net, dlst.jp, *.vivsh.jp, doujin.com, *.doujin.com, *.stg.nijiyome.com, *.stg.dlsite.jp, *.njym.jp, nijiyome.com

Security headers

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

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 0 · H2 0 · H3 0

Links

0 internal · 0 external · 0 broken

Images

0 total · 0 missing alt

Scripts / Styles

0 scripts · 0 stylesheets

JS / CSS size

0 B · 0 B

Page size

45 B

Robots.txt & Sitemap

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

SEO issues

Missing <title>
Missing meta description
Missing canonical link
No H1 heading found
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://dlsite.jp
Final URL: https://dlsite.jp
HTTP status: 404
HTTP version: HTTP/2
Response time: 146 ms
HTML size: 45 B
Redirect chain: https://dlsite.jp

See something wrong on this report? Request a correction

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Frequently asked questions

What technology does dlsite.jp use?: dlsite.jp is built with Apache.
Is dlsite.jp secure (HTTPS)?: Yes. dlsite.jp uses TLS 1.2 with a certificate issued by Amazon, valid until Oct 23, 2026.
Who hosts dlsite.jp?: Hosting provider information for dlsite.jp is not available yet.
What is dlsite.jp's SEO score?: dlsite.jp scored 35/100 for SEO in the latest analysis (poor).
What is dlsite.jp's overall website score?: dlsite.jp has an overall SiteGraph score of 67/100, combining SEO, performance, security, and accessibility.
Has dlsite.jp's score changed over time?: dlsite.jp's overall score has declined by 1 point (from 68 to 67) since Jul 26, 2026.