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tkma.co.jp

https://tkma.co.jp· First analyzed 15 May 2026· Updated 15 May 2026
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tkma.co.jp
Desktop screenshot of tkma.co.jp
Mobile screenshot of tkma.co.jp
Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)
aws.amazon.com

IP Address

46.51.244.145

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Server

Nginx

Nameservers

ns-845.awsdns-41.net.ns-1125.awsdns-12.org.ns-1986.awsdns-56.co.uk.ns-248.awsdns-31.com.

Performance

94

Core Web Vitals

Weight

First Contentful Paint
1.2 s10%
Speed Index
1.6 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
9.4 MB
113 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Amazon Web Services (AWS)

Technology Stack

8 Technologies Detected

Analytics

3
Google Analytics
Google Analytics 4
Segment

Libraries

1
jQueryv3.7.0

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

Web Servers

1
Nginx

SEO Analysis

D52/100
13
12
2
Meta Tags8/15
Content7/12
Headings3/8
Technical19/25
E-E-A-T3/7
Images1/7
Links2/5
URL5/5
Social0/5
Freshness0/4
Mobile1/4
Indexability3/3
T
tkma.co.jptkma.co.jp

徳間ジャパン|Tokuma Japan Communications CO

レコード会社、徳間ジャパンコミュニケーションズのサイトです。リリース情報、試聴、PV、コメント動画ほか

Title Length37 chars

Recommended: 50-60 chars (~234px / 580px)

Description Length51 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing H1 tag — every page should have exactly one H1
  • • Most images missing alt text (38/72) — critical for accessibility and SEO

14 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

24,662 URLs

robots.txt

16 rules

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

F34/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
7/25

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
header/footer
Text ratio:2%
Words:136
Token eff.:Too Short
Sections/1K:66.2
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary13w
Descriptive Headingsavg 1.2w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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
12
Passed
2
Critical
1
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.
31/100
F
976 mg
CO₂e / view
9.4 MB
Page Weight
5%
Cleaner Than
New Visitor
1.11 g
vs
Returning (cached)
557 mg
Annual (10K/mo)
117.1 kg
Emission Segments
Data Center
48 mg
Network
287 mg
Device
641 mg
Resource Breakdown
JavaScript
89.9 KB
Images
4.9 MB
CSS
4.4 MB
HTML
9.5 KB
Other
8.2 KB
Green Hosting Verified
Amazon Web Services (AWS)
Provider Match
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

76%Good
Interactive

HTTPS

No WAF

48d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

04.04.2026

Valid Until

03.07.2026

Subject Alternative Names (2)

tkma.co.jpwww.tkma.co.jp

SHA-256 Fingerprint

31:F3:0D:83:9F:2C:6E:E1:71:9C:42:35:CF:F8:06:51:7E:65:86:66...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
📦 Gzip(gzip)
content-security-policy
upgrade-insecure-requests
content-type
text/html; charset=utf-8
date
Fri, 15 May 2026 20:32:21 GMT
server
nginx
strict-transport-security
max-age=31536000
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

68

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mailc.tkma.co.jp

Domain Information

tkma.co.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=1.0,minimum-scale=1.0
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

游ゴシック Medium

WCAG Partial
66/100
Readability
/30
23/30

16px · LH 1.60

Hierarchy
/20
15/20

2x ratio · ✓ H1→H6

WCAG
/25
12/25

1:1 min contrast

Performance
/25
16/25

1 font

Heading Font

游ゴシック Medium

Sans32px

Body Font

游ゴシック Medium

Sans16px

Contrast Ratio

1:1

9 issues

Reading Comfort

~52 CPL

Optimal (45–75)
32px
h1
30px
h2
26px
h3
16px
p

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

✅ Optimal line length: ~52 chars/line (ideal 45–75 CPL).

⚠️ Hard to read: Flesch score 39/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 9 elements below WCAG AA threshold (min 1.0:1).

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

Buy on MyFontsFlesch 39

Color Palette

12 unique colors
Light
#ffffff
Background· 17.999999999999996%
#ae1841
Primary· 21.799999999999997%
#dad8df
Secondary· 9.5%
#c3718c
Secondary· 8.7%
#852e4b
Secondary· 6.2%
#babfcb
Secondary· 5.9%
#d5b4c1
Secondary· 5.6%
#f4edee
Secondary· 5.3%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

Social Media

1
Twitter/X WidgetsFree

Social widgets and sharing tools

2

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

Sponsored

Scripts & Styles

22 Resources

13
Scripts
9
Styles
7
Async
0
Defer

Top Script Sources

local(5)cse.google.com(4)google.com(2)google-analytics.com(1)googletagmanager.com(1)

Website Identity

tkma.co.jp

Location detected: 🇯🇵 Japanvia tld
ja

Sponsored

Last analyzed: 15 May 2026 at 20:32

Historical Analysis & Change Tracking