sogo-seibu.jp

https://sogo-seibu.jp· First analyzed 30 Apr 2026· Updated 30 Apr 2026

Export

sogo-seibu.jp

Mobile

Sponsored

Hosting Provider

Wix

wix.com

IP Address

185.230.63.107

Site Location

🇯🇵 Japanvia tld

Server Location

🇺🇸 Ashburn, United States

ASN

AS58182

Organization

Wix Com Inc

Server

Pepyaka

CDN

Fastly

Nameservers

02.dnsv.jp.03.dnsv.jp.04.dnsv.jp.01.dnsv.jp.

Performance

100

Core Web Vitals

Weight

First Contentful Paint

489 ms10%

Speed Index

636 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

2.8 MB

217 requests

Image Optimization

Lazy LoadResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Wix

website_builder

Progressive Web App

Service WorkerApple Touch Icon

Technology Stack

8 Technologies Detected

Frameworks

Libraries

Other

CSS Frameworks

Fonts

Customer Support

Analytics

SEO Analysis

D53/100

Meta Tags7/15

Content2/12

Headings3/8

Technical20/25

E-E-A-T0/7

Images5/7

Links2/5

URL5/5

Social5/5

Freshness0/4

Mobile1/4

Indexability3/3

sogo-seibu.jpsogo-seibu.jp

西武・そごう公式ホームページ

西武・そごうの総合サイトです。物語を進めよう。西武・そごうは、みなさまと一緒に楽しめるようなイベントや、コスメ、グルメ、ギフトなどの情報をお届けいたします。

Title Length14 chars

Recommended: 50-60 chars (~86px / 580px)

Description Length78 chars

Recommended: 120-160 chars

Issues (2)

• Very thin content (0 words). Search engines need substantial content for ranking.
• Missing H1 tag — every page should have exactly one H1

10 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

5 URLs

5 sub-sitemaps

robots.txt

24 rules

Sitemap reference found

Local SEO

Local Search Readiness

10/100

Poor

3 13 1

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

Sponsored

AI & LLM Readiness

F32/100

Bot Access

21/25

Machine Read.

7/25

Schema Data

2/25

Citation

2/25

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.txtvalid

llms-full.txt

Semantic HTML

Heading Hierarchy

Text ratio:0%

Words:273

Token eff.:Too Short

Structured Data

1 JSON-LD

WebSite

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

72/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

6/20

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

15/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

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.

20/100

358 mg

CO₂e / view

2.8 MB

Page Weight

30%

Cleaner Than

New Visitor

409 mg

Returning (cached)

204 mg

Annual (10K/mo)

42.9 kg

Emission Segments

Data Center

80 mg

Network

86 mg

Device

192 mg

Resource Breakdown

JavaScript

2.0 MB

Images

294.0 KB

CSS

61.2 KB

HTML

215.1 KB

Other

221.6 KB

Green Hosting Not Verified

Wix

6 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

46%Poor

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+H3

Valid From

17.04.2026

Valid Until

16.07.2026

Subject Alternative Names (2)

sogo-seibu.jpwww.sogo-seibu.jp

SHA-256 Fingerprint

48:09:34:9E:C0:20:03:65:3C:44:2C:EC:19:7D:4E:87:F6:18:50:27...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

age

6188

alt-svc

h3=":443"; ma=2592000,h3-29=":443"; ma=2592000

cache-control

🟡 0s(public,max-age=0,must-revalidate)

content-encoding

⚡ Brotli(br)

content-language

zh-CN

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

Domain Information

sogo-seibu.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

78/100

Mobile Friendly205 breakpoints

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

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Marcellus + Inter

WCAG Partial

58/100

Readability

/30

19/30

13px · LH 1.60

Hierarchy

/20

8/20

WCAG

/25

15/25

1:1 min contrast

Performance

/25

16/25

System fonts

Heading Font

Marcellus

Sans

Body Font

Inter

Sans13px

Contrast Ratio

1:1

12 issues

Reading Comfort

~57 CPL

Optimal (45–75)

73px

14px

13px

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

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

✅ Optimal line length: ~57 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 12 elements below WCAG AA threshold (min 1.0:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

⚠️ Fluid type without rem: clamp() detected but missing rem units. May fail WCAG 1.4.4 zoom test.

Buy on MyFontsFluid TypeFlesch 68

Color Palette

6 unique colors

3.74:1 AA Large Light

#ffffff

Background· 88.60000000000001%

#848484

Other· 2.9000000000000004%

#e0e8ed

Primary· 0.8%

#6c7c8a

Secondary· 0.3%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

18 Resources

Scripts

Styles

Async

Defer

Top Script Sources

static.parastorage.com(12)browser.sentry-cdn.com(2)cs.nakanohito.jp(1)j.wovn.io(1)

Website Identity

西武・そごう

www.sogo-seibu.jp

Location detected: 🇯🇵 Japanvia tld

Sponsored

Last analyzed: 30 Apr 2026 at 08:30

Historical Analysis & Change Tracking