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dr-stone.jp

https://dr-stone.jp· First analyzed 22 May 2026· Updated 22 May 2026
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dr-stone.jp
Desktop screenshot of dr-stone.jp
Mobile screenshot of dr-stone.jp
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.26.4.226

Site Location

🇯🇵 Japanvia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

amber.ns.cloudflare.com.bruce.ns.cloudflare.com.

Performance

95

Core Web Vitals

Weight

First Contentful Paint
1.1 s10%
Speed Index
1.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
6.7 MB
84 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms
Dr.Stone v4v0.1Custom
by SALT,inc.

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.6.0

UI Components

1
Swiper

Fonts

1
Google Fonts

Tag Managers

1
Google Tag Manager

CDN

1
Cloudflare

SEO Analysis

D53/100
17
6
2
Meta Tags7/15
Content3/12
Headings4/8
Technical13/25
E-E-A-T0/7
Images2/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile4/4
Indexability3/3
D
dr-stone.jpdr-stone.jp

アニメ「Ｄｒ．ＳＴＯＮＥ(ドクターストーン)」公式HP

TVアニメ第4期第3クール『Dr.STONE SCIENCE FUTURE』2026年4月2日(木)22時～TOKYO MXほかにて放送開始

Title Length27 chars

Recommended: 50-60 chars (~167px / 580px)

Description Length70 chars

Recommended: 120-160 chars

Issues (2)

  • • Very thin content (1 words). Search engines need substantial content for ranking.
  • • Most images missing alt text (14/17) — critical for accessibility and SEO

8 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

3/100
Poor
1 14 2

This site doesn't appear to be a local business. Local SEO signals are optional for non-local websites.

Sponsored

AI & LLM Readiness

F26/100
Bot Access
20/25
Machine Read.
1/25
Schema Data
0/25
Citation
5/25

AI Bot Access

14/14 accessible
AI Search
OAI-SearchBot
PerplexityBot
Claude-SearchBot
Gemini-Deep-Research
DuckAssistBot
Training
GPTBot
ClaudeBot
Google-Extended
Meta-ExternalAgent
Bytespiderinfo
Amazonbot
Applebot-Extended
CCBotinfo
Fetch
ChatGPT-User

Machine Readability

llms.txt
llms-full.txt
Semantic HTML
Heading Hierarchy
Text ratio:0%
Words:102
Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
Upgrade to view recommendations

Sponsored

Accessibility

WCAG 2.1 Compliance

Evaluates how accessible your website is for users with disabilities, based on WCAG 2.1 guidelines. Checks images, forms, keyboard navigation, ARIA roles, and color contrast.
A
86/100
13
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
18/20
Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.
Forms & Inputs
15/15
Verifies form fields have labels, error messages are clear, and inputs are properly associated.
Color & Contrast
15/15
Tests text-to-background color contrast ratios against WCAG AA/AAA minimum requirements.
Keyboard & Focus
9/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •Accessibility recommendation preview...
Upgrade to view recommendations

Carbon Footprint

SWDM v4 · Eco-Score

Carbon emissions estimated using the Sustainable Web Design Model v4 (SWDM v4). Factors in data center, network, and device energy across new and returning visitors. Grade thresholds based on HTTP Archive percentiles.
37/100
F
696 mg
CO₂e / view
6.7 MB
Page Weight
5%
Cleaner Than
New Visitor
795 mg
vs
Returning (cached)
398 mg
Annual (10K/mo)
83.5 kg
Emission Segments
Data Center
34 mg
Network
205 mg
Device
457 mg
Resource Breakdown
JavaScript
74.0 KB
Images
5.0 MB
CSS
1.7 MB
HTML
35.4 KB
Green Hosting Verified
Cloudflare
GWF Verified
6 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

86%Very Good
Static / Informational

HTTPS

WAF

71d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

04.05.2026

Valid Until

02.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

dr-stone.jp*.dr-stone.jp

SHA-256 Fingerprint

D2:81:5C:E4:81:D2:A2:9D:10:C0:87:66:6F:B9:1B:42:C5:1E:01:BF...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cache-control
🟡 4 Hours(max-age=14400)
cf-apo-via
tcache
cf-cache-status
HIT
cf-edge-cache
cache,platform=wordpress
cf-ray
9ffdbfc6bcda1d8b-BOS
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

dr-stone.jp

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

Mobile Compatibility

Viewport & Responsive Test

Tests how well your website works on mobile devices. Checks viewport configuration, responsive layout, touch targets, font readability, and simulates rendering across different screen sizes.
D
53/100
Mobile Friendly1 breakpoint
Viewport Meta
The viewport meta tag tells mobile browsers how to scale the page. Without it, mobile devices render at desktop width.
Responsive Design
Uses CSS media queries or flexible layouts to adapt content to different screen sizes automatically.
Touch Icons
Apple touch icons and favicons displayed when users add the site to their home screen on mobile devices.
Readable Font Size
Base font size should be at least 16px on mobile to ensure text is readable without zooming.
Relative Units
Using em, rem, %, or vw instead of fixed px values allows content to scale properly across screen sizes.
No H-Scroll Risk
No elements wider than the viewport that would cause horizontal scrolling on mobile devices.
Tap Targets OK
Interactive elements (buttons, links) are at least 48x48px with enough spacing to prevent accidental taps.
No Fixed Widths
No elements with fixed pixel widths that could overflow on smaller screens and break the layout.
Viewport
width=device-width, initial-scale=1, user-scalable=no
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Noto Sans JP

WCAG Partial
55/100
Readability
/30
19/30

16px · LH 2.00

Hierarchy
/20
10/20

1x ratio

WCAG
/25
10/25

1:1 min contrast

Performance
/25
16/25

1 font · 25 req

Heading Font

Noto Sans JP

Sans16px

Body Font

Noto Sans JP

Sans16px

Contrast Ratio

1:1

24 issues

Reading Comfort

~59 CPL

Optimal (45–75)
16px
h1
16px
h2
16px
p
Minor Second
Scale

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

✅ Optimal line length: ~59 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 24 elements below WCAG AA threshold (min 1.0:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

Buy on MyFontsFlesch 59

Color Palette

2 unique colors
2.23:1 Fail Dark
#000000
Primary· 98.19999999999999%
#474644
Other· 2%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2
Google Tag ManagerFree
Google AnalyticsFree

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

15 Resources

12
Scripts
3
Styles
5
Async
0
Defer

Top Script Sources

googletagmanager.com(4)dr-stone.jp(3)youtube.com(2)ajax.googleapis.com(1)cdnjs.cloudflare.com(1)

Website Identity

dr-stone.jp

Location detected: 🇯🇵 Japanvia tld
ja

Sponsored

Last analyzed: 22 May 2026 at 18:05

Historical Analysis & Change Tracking