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knee-cell.com

https://knee-cell.com· First analyzed 30 Apr 2026· Updated 30 Apr 2026
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knee-cell.com
Desktop screenshot of knee-cell.com
Mobile screenshot of knee-cell.com
Mobile

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Hosting Provider

IP Address

162.43.101.88

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS131965

Organization

BETINC

Server

Nginx

Nameservers

ns5.xserver.jp.ns4.xserver.jp.ns3.xserver.jp.ns1.xserver.jp.+1 more

Performance

81

Core Web Vitals

Weight

First Contentful Paint
2.2 s10%
Speed Index
2.8 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
4.2 MB
98 requests

Image Optimization

Lazy LoadResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
sapporo-knee-cell-clinic 2026v1.0Custom
by Yuko Takahashi

SEO Analysis

B71/100
22
7
1
Meta Tags8/15
Content6/12
Headings3/8
Technical24/25
E-E-A-T2/7
Images6/7
Links2/5
URL5/5
Social4/5
Freshness4/4
Mobile4/4
Indexability3/3
K
knee-cell.comknee-cell.com

札幌ひざのセルクリニック|変形性膝関節症・手術しない膝治療

膝が痛い、ヒアルロン酸が効かない、変形性膝関節症を手術をしないで治す方法は?その答えは札幌ひざのセルクリニックにあります。再生医療や幹細胞治療、PRP療法を通し、患者さまにとって最善の治療法をご提案いたします。西18丁目駅すぐ。

Title Length29 chars

Recommended: 50-60 chars (~179px / 580px)

Description Length114 chars

Recommended: 120-160 chars

Issues (1)

  • Missing H1 tag — every page should have exactly one H1

Crawlability

Sitemap

Type: index

10 URLs

10 sub-sitemaps

robots.txt

3 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

29/100
Needs Work
8 9

Sponsored

AI & LLM Readiness

D45/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
7/25
Citation
11/25

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:2%
Words:432
Token eff.:Optimal

Structured Data

4 JSON-LD
Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary19w
Descriptive Headingsavg 1.6w
Canonical URL
Open Graph2/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (12)
AI readiness recommendation preview...

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
83/100
14
Passed
3
Critical
0
Warnings
Images & Alt Text
13/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
20/20
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
11/15
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.
2 recommendations
  • Accessibility recommendation preview...

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.
21/100
F
534 mg
CO₂e / view
4.2 MB
Page Weight
15%
Cleaner Than
New Visitor
611 mg
vs
Returning (cached)
305 mg
Annual (10K/mo)
64.1 kg
Emission Segments
Data Center
119 mg
Network
128 mg
Device
287 mg
Resource Breakdown
JavaScript
177.0 KB
Images
2.5 MB
CSS
1.5 MB
HTML
111.3 KB
Green Hosting Not Verified
BETINC
8 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

21%Critical
Interactive

HTTPS

No WAF

76d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

16.04.2026

Valid Until

15.07.2026

Subject Alternative Names (2)

knee-cell.comwww.knee-cell.com

SHA-256 Fingerprint

35:60:DA:BE:38:31:B4:34:EB:9C:E6:EA:FE:FB:20:8C:08:56:C2:D6...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

content-encoding
Brotli(br)
content-type
text/html; charset=UTF-8
date
Thu, 30 Apr 2026 02:05:53 GMT
link
<https://knee-cell.com/wp-json/>; rel="https://api.w.org/", ...
server
nginx
vary
Accept-Encoding
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

90

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

knee-cell.com

Domain Information

knee-cell.com

Domain Age
2y 4m

Created

28.12.2023

Expires

28.12.2026

Last Updated

28.11.2025

Registrar

XServer, Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked
Data Protection Officer mentioned

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.
B
71/100
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=1.0
2 recommendations
  • Mobile compatibility recommendation preview...

Typography & Readability

游ゴシック体

WCAG Fail
57/100
Readability
/30
21/30

18px · LH 1.80

Hierarchy
/20
11/20

0.56x ratio · ✓ H1→H6

WCAG
/25
10/25

2.45:1 min contrast

Performance
/25
15/25

2 fonts · 1 req

Heading Font

游ゴシック体

Sans10px

Body Font

游ゴシック体

Sans18px

Contrast Ratio

2.45:1

48 issues

Reading Comfort

~48 CPL

Optimal (45–75)
10px
h1
59px
h2
18px
h3
18px
p

✅ Excellent readability: 18px body text is ideal for all devices.

✅ Optimal line length: ~48 chars/line (ideal 45–75 CPL).

❌ Very complex text: Flesch score 25/100. Consider shorter sentences and simpler words.

❌ Low contrast: 48 elements fail WCAG AA (min 2.5:1). Increase text/background contrast.

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

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

Color Palette

10 unique colors
Light
#ffffff
Background· 19.5%
#d7cdb5
Secondary· 25.099999999999998%
#00bc8a
Primary· 15.5%
#e5e0cc
Secondary· 14.100000000000001%
#d6ece2
Primary· 7.9%
#efefeb
Secondary· 6.9%
#79ccae
Secondary· 4%
#607c67
Secondary· 2.7%

Business & Marketing Stack

3 Tools Detected

Growing

Behavior Analytics

3

User behavior and product analytics

1

Categories

3

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

29 Resources

20
Scripts
9
Styles
7
Async
0
Defer

Top Script Sources

knee-cell.com(9)googletagmanager.com(3)youtube.com(2)js.ptengine.jp(2)scripts.clarity.ms(1)

Website Identity

札幌ひざのセルクリニック

札幌ひざのセルクリニック

Organization

膝が痛い、ヒアルロン酸が効かない、変形性膝関節症を手術をしないで治す方法は?その答えは札幌ひざのセルクリニックにあります。再生医療や幹細胞治療、PRP療法を通し、患者さまにとって最善の治療法をご提案いたします。西18丁目駅すぐ。

Location detected: 🇯🇵 Japanvia ip
XServer, Inc.ja

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Last analyzed: 30 Apr 2026 at 02:06

Historical Analysis & Change Tracking