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suumo.jp

https://suumo.jp· First analyzed 25 Apr 2026· Updated 25 Apr 2026
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suumo.jp
Desktop screenshot of suumo.jp
Mobile screenshot of suumo.jp
Mobile

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Hosting Provider

IP Address

160.17.3.13

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS2497

Organization

Recruit Co., Ltd.

Nameservers

ns3.x.recruit.co.jp.ns2.x.recruit.co.jp.ns1.x.recruit.co.jp.

Performance

78

Core Web Vitals

Weight

First Contentful Paint
2.6 s10%
Speed Index
3.4 s10%
Largest Contentful Paint
25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.6 MB
181 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms

Technology Stack

9 Technologies Detected

SEO Analysis

C62/100
16
6
2
Meta Tags14/15
Content11/12
Headings8/8
Technical11/25
E-E-A-T0/7
Images1/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
S
suumo.jpsuumo.jp

【SUUMO】不動産売買・住宅購入・賃貸情報ならリクルートの不動産ポータルサイト

【SUUMO(スーモ)】不動産・住宅に関する総合情報サイトです。全国の賃貸情報からマンション・一戸建て・土地などの不動産売買・物件購入情報はもちろん、注文住宅、リフォーム、設備情報に至るまでの豊富な住宅情報で、あなたの幸せな住まい探しをサポートします。

Title Length40 chars

Recommended: 50-60 chars (~253px / 580px)

Description Length126 chars

Recommended: 120-160 chars

Issues (2)

  • Most images missing alt text (37/61) — critical for accessibility and SEO
  • Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

Crawlability

Sitemap
robots.txt

381 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

F38/100
Bot Access
20/25
Machine Read.
13/25
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
def. lists
Text ratio:4%
Words:746
Token eff.:Optimal
Sections/1K:8
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 1w
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...

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.
C
66/100
9
Passed
3
Critical
0
Warnings
Images & Alt Text
10/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
16/20
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
1/15
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.
29/100
C
197 mg
CO₂e / view
1.6 MB
Page Weight
60%
Cleaner Than
New Visitor
225 mg
vs
Returning (cached)
113 mg
Annual (10K/mo)
23.7 kg
Emission Segments
Data Center
44 mg
Network
47 mg
Device
106 mg
Resource Breakdown
JavaScript
288.4 KB
Images
982.7 KB
CSS
281.5 KB
HTML
16.1 KB
Other
25.4 KB
Green Hosting Not Verified
Recruit Co., Ltd.
6 recommendations
  • Carbon footprint recommendation preview...
F

Security Score

36%Critical
Interactive

HTTPS

No WAF

265d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

DigiCert Inc

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/1.1

Valid From

16.01.2026

Valid Until

15.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (1)

suumo.jp

SHA-256 Fingerprint

88:02:B6:54:47:C1:35:CD:A5:C2:6F:F2:05:74:C1:D0:C2:9C:59:7A...

Top Recommendations

Security recommendation preview

HTTP Headers

Developer Console

connection
Keep-Alive
content-encoding
📦 Gzip(gzip)
content-length
16145
content-type
text/html;charset=UTF-8
date
Sat, 25 Apr 2026 21:10:49 GMT
keep-alive
timeout=1, max=100
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

68

SPF
DKIM
DMARC

DMARC Policy

Quarantine (Moderate)

MX Records (1)

mx.x.recruit.co.jp

Domain Information

suumo.jp

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

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
40/100
Not 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.
2 recommendations
  • Mobile compatibility recommendation preview...

Typography & Readability

メイリオ

WCAG Partial
51/100
Readability
/30
10/30

12px · LH 1.80

Hierarchy
/20
11/20

1x ratio · ✓ H1→H6

WCAG
/25
16/25

2.66:1 min contrast

Performance
/25
14/25

1 font

Heading Font

メイリオ

Sans12px

Body Font

メイリオ

Sans12px

Contrast Ratio

2.66:1

5 issues

Reading Comfort

~77 CPL

Wide lines
12px
h1
23px
h2
12px
p
Octave
Scale

❌ Critical: 12px body text is too small. Minimum 14px, recommend 16px+.

⚠️ Wide lines: ~77 chars/line. Use max-width: 65ch for comfortable reading.

⚠️ Hard to read: Flesch score 33/100. Simplify sentences for wider reach.

⚠️ Partial contrast: 5 elements below WCAG AA threshold (min 2.7:1).

✅ 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.

Color Palette

12 unique colors
Light
#ffffff
Background· 38.6%
#60ab2d
Primary· 12.2%
#d8e0e0
Secondary· 10.1%
#fbffaf
Accent· 8.1%
#38d0ea
Accent· 7.8%
#a7dc9d
Secondary· 5.4%
#a2c079
Secondary· 5.3%
#d5dfbb
Secondary· 4.9%

Business & Marketing Stack

2 Tools Detected

Growing

Behavior Analytics

2

User behavior and product analytics

1

Categories

2

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

22 Resources

20
Scripts
2
Styles
19
Async
0
Defer

Top Script Sources

s.yimg.jp(10)googletagmanager.com(8)js.fout.jp(1)tm.r-ad.ne.jp(1)

Website Identity

suumo.jp

Location detected: 🇯🇵 Japanvia tld
ja

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Last analyzed: 25 Apr 2026 at 21:11

Historical Analysis & Change Tracking

suumo.jp Technology Stack - Built With jQuery, Tailwind CSS, Google Analytics, Google Tag Manager, Facebook Pixel | StackOptic | StackOptic