dlsite.jp
Last scanned Jul 26, 2026, 5:34 AM
Overall score
Fair
Summary
This website uses Apache hosted on AWS. SEO is poor (40/100) and accessibility is good (75/100). Security scores fair (65/100) and performance excellent (100/100). Top issue: Missing <title>.
- United States
- Hosted on AWS
Top issues to fix
13 issues found · 6 high priority
Missing Strict-Transport-Security header
SecurityAdd HSTS so browsers always use HTTPS — this closes the protocol-downgrade attack window.
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
Missing title tag
SEOAdd a unique, descriptive <title> tag — it's the single most important on-page SEO element.
Missing meta description
SEOAdd a ~150-character meta description to control your search-result snippet and lift click-through rate.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
Missing viewport meta tag
AccessibilityAdd <meta name="viewport" content="width=device-width, initial-scale=1"> — without it the site is broken on mobile.
+7 more issues — details in the sections below.
SEO
7 issue(s) found
Performance
141 ms
Security
HTTPS & header checks
Accessibility
3 issue(s) found
Meta tags
- Title
- Description
- Canonical
- Language
- Charset
- Viewport
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- AWS
- CDN provider
- —
- IP address
- 52.198.166.4
- ASN
- AS16509 (AMAZON-02 - Amazon.com, Inc., US)
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
- 89
- 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
- Found
- Disallow rules
- 4
- 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
- sitemap.xml not found
Accessibility issues
- No H1 heading found
- Missing <html lang> attribute
- Missing viewport meta tag
Scan details
- Requested URL
- https://dlsite.jp
- Final URL
- https://dlsite.jp
- HTTP status
- 404
- HTTP version
- HTTP/2
- Response time
- 141 ms
- HTML size
- 45 B
- Redirect chain
- https://dlsite.jp
See something wrong on this report? Request a correction
Related websites
Same technology stack
dgb.de
Deutscher Gewerkschaftsbund | DGB
rebounce.ai
rebounce.ai | AI-based Bounce Management for E-Commerce
uwplatt.edu
University of Wisconsin-Platteville | College in Wisconsin
ebi.ac.uk
EMBL-EBI homepage | EMBL-EBI
lucerna-chem.ch
Lucerna-Chem AG
voicemod.net
Free Real Time Voice Changer for PC & Mac | Voicemod
Same hosting provider
byside.com
Composable Digital Experience Platform | CoreMedia CMS
surveyplanet.com
Free Online Survey Maker | Unlimited Surveys | Surveyplanet
petpooja.com
Software for Small and Medium Businesses | Petpooja
openpgp.org
OpenPGP - OpenPGP
ecosoberhouse.com
EcoSoberHouses – transitional Sober Living Houses
dash0.com
OpenTelemetry Native Observability · Dash0
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?
- dlsite.jp is hosted on AWS.
- What is dlsite.jp's SEO score?
- dlsite.jp scored 40/100 for SEO in the latest analysis (poor).
- What is dlsite.jp's overall website score?
- dlsite.jp has an overall SiteGraph score of 68/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card