blind.co.jp

https://blind.co.jp· First analyzed 15 May 2026· Updated 15 May 2026

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blind.co.jp

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

52.193.104.189

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Server

Apache

Nameservers

ns-944.awsdns-54.net.ns-1433.awsdns-51.org.ns-1562.awsdns-03.co.uk.ns-248.awsdns-31.com.

Performance

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%

15.6 MB

128 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

13 Technologies Detected

Fonts

Google Fonts Adobe Fonts (Typekit)Adobe Fonts

Analytics

Libraries

UI Components

Other

Other

CSS Frameworks

Icon Libraries

Tag Managers

Web Servers

SEO Analysis

D57/100

Meta Tags12/15

Content10/12

Headings3/8

Technical11/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

blind.co.jpblind.co.jp

タチカワブラインド|窓まわりと間仕切りのインテリア総合メーカー｜タチカワブラインド

1938年創業タチカワブラインドの公式サイト。新築、リフォーム、模様替えを検討中のお客様へ、ブラインド、ロールスクリーンなどの窓まわり製品や間仕切り製品で快適なインテリアをご提案します。

Title Length41 chars

Recommended: 50-60 chars (~252px / 580px)

Description Length93 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (75/109) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

500 URLs

robots.txt

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

D40/100

Bot Access

20/25

Machine Read.

13/25

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

nav

Text ratio:3%

Words:402

Token eff.:Optimal

Sections/1K:19.9

Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.2w

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (10)

AI readiness recommendation preview...

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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.

67/100

Passed

Critical

Warnings

Images & Alt Text

5/20

Checks if images have descriptive alt text for screen readers and visually impaired users.

Semantic Structure

17/20

Evaluates proper use of HTML5 semantic elements (header, nav, main, footer) and heading hierarchy.

Forms & Inputs

12/15

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.

4 recommendations

•Accessibility recommendation preview...

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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.

26/100

1.62 g

CO₂e / view

15.6 MB

Page Weight

Cleaner Than

New Visitor

1.85 g

Returning (cached)

923 mg

Annual (10K/mo)

193.9 kg

Emission Segments

Data Center

79 mg

Network

475 mg

Device

1.06 g

Resource Breakdown

JavaScript

336.1 KB

Images

14.6 MB

CSS

365.7 KB

Fonts

238.4 KB

HTML

150.4 KB

Other

318 B

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

9 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

70d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

25.06.2025

Valid Until

24.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (3)

blind.co.jp*.blind.co.jpwww.blind.co.jp

SHA-256 Fingerprint

AA:A8:1C:4B:92:BA:0F:64:7E:98:AF:13:A6:5F:DB:7D:1E:AB:2C:62...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-credentials

true

access-control-allow-headers

Origin, X-Requested-With, Content-Type, Accept, Authorizatio...

access-control-allow-methods

GET, POST, PUT, PATCH, DELETE, OPTIONS

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

content-type

text/html; charset=UTF-8

date

Fri, 15 May 2026 07:40:26 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mgf.cybermail.jp

Domain Information

blind.co.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

56/100

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...

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Typography & Readability

Noto Sans JP

WCAG Partial

64/100

Readability

/30

19/30

16px · LH 1.53

Hierarchy

/20

15/20

1x ratio · ✓ H1→H6

WCAG

/25

10/25

1:1 min contrast

Performance

/25

20/25

1 font · 2 req

Heading Font

Noto Sans JP

Sans16px

Body Font

Noto Sans JP

Sans16px

Contrast Ratio

1:1

4 issues

Reading Comfort

Single Font Family

left aligned

16px

24px

30px

16px

Augmented Fourth

Scale

⚠️ Small text: 16px may strain on mobile. Use ≥16px for WCAG compliance.

✅ Optimal line spacing: 1.53 ratio (ideal range 1.4–1.6).

⚠️ Partial contrast: 4 elements below WCAG AA threshold (min 1.0:1).

✅ 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.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

GGoogle Fonts AAdobe FontsFlesch 55

Color Palette

9 unique colors

3.32:1 AA Large Light

#e5e7e5

Other· 19.8%

#767e83

Other· 4.7%

#784d31

Primary· 7.1%

#a89b8f

Secondary· 6.3%

#3a362e

Text· 5.4%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(10)googletagmanager.com(2)visumo.jp(2)google-analytics.com(1)ajax.googleapis.com(1)

Website Identity

blind.co.jp

Location detected: 🇯🇵 Japanvia tld

Social Profiles

Facebook X (Twitter)Instagram YouTube

Sponsored

Last analyzed: 15 May 2026 at 07:40

Historical Analysis & Change Tracking