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isize.com

https://isize.com· First analyzed 10 May 2026· Updated 10 May 2026
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isize.com
Desktop screenshot of isize.com
Mobile screenshot of isize.com
Mobile

Sponsored

Hosting Provider

Recruit Co., Ltd.

IP Address

160.17.99.188

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS2497

Organization

Recruit Co., Ltd.

Server

Apache

Nameservers

v46ns3.x.recruit.co.jp.v46ns1.x.recruit.co.jp.v46ns2.x.recruit.co.jp.

Performance

82

Core Web Vitals

Weight

First Contentful Paint
2.1 s10%
Speed Index
2.7 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
278 KB
42 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPress
cms

Technology Stack

5 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv1.7.2

Tag Managers

1
Google Tag Manager

Web Servers

1
Apache

SEO Analysis

D59/100
17
7
0
Meta Tags5/15
Content7/12
Headings8/8
Technical15/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
I
isize.comisize.com

リクルートの行動支援サイトISIZE［イサイズ］

ISIZE［イサイズ］：リクルートがお届けする「私サイズ」の行動支援サイトです。日本最大級の生活情報から選べる！買える！予約できます

Title Length24 chars

Recommended: 50-60 chars (~144px / 580px)

Description Length66 chars

Recommended: 120-160 chars

Issues (0)

    7 issues found

    Upgrade to view details

    Crawlability

    Sitemap

    Type: standard

    robots.txt

    3 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.
    6/25
    Schema Data
    0/25
    Citation
    8/25

    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:11%
    Words:159
    Token eff.:Too Short
    Sections/1K:81.8
    Depth:1/5

    Structured Data

    No Schema

    Citation Readiness

    Opening Summary
    Descriptive Headingsavg 1.4w
    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...
    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.
    B
    74/100
    10
    Passed
    3
    Critical
    0
    Warnings
    Images & Alt Text
    20/20
    Checks if images have descriptive alt text for screen readers and visually impaired users.
    Semantic Structure
    14/20
    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.
    1 recommendation
    • •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.
    49/100
    A+
    34 mg
    CO₂e / view
    277.5 KB
    Page Weight
    90%
    Cleaner Than
    New Visitor
    39 mg
    vs
    Returning (cached)
    20 mg
    Annual (10K/mo)
    4.1 kg
    Emission Segments
    Data Center
    8 mg
    Network
    8 mg
    Device
    18 mg
    Resource Breakdown
    JavaScript
    145.9 KB
    Images
    76.8 KB
    CSS
    48.6 KB
    HTML
    6.3 KB
    Green Hosting Not Verified
    Recruit Co., Ltd.
    5 recommendations
    • •Carbon footprint recommendation preview...
    Upgrade to view recommendations
    B

    Security Score

    71%Good
    Static / Informational

    HTTPS

    No WAF

    145d

    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

    18.03.2026

    Valid Until

    02.10.2026

    OCSP Stapling

    Enabled

    Subject Alternative Names (6)

    *.isize.comisize.com*.isize.netisize.net*.isize.ne.jpisize.ne.jp

    SHA-256 Fingerprint

    3E:0F:94:4C:65:A0:A5:18:E8:54:17:5F:EB:7E:74:42:40:D0:9E:B6...

    Recommendations

    Security recommendation preview

    Upgrade to view recommendations
    Upgrade to view header details

    HTTP Headers

    Developer Console

    connection
    Keep-Alive
    content-encoding
    📦 Gzip(gzip)
    content-length
    6144
    content-type
    text/html; charset=UTF-8
    date
    Sun, 10 May 2026 07:44:27 GMT
    keep-alive
    timeout=5, 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

    isize.com

    Domain Age
    27y 7m

    Created

    30.09.1998

    Expires

    29.09.2026

    Last Updated

    25.09.2025

    Registrar

    CSC Corporate Domains, Inc.

    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.
    F
    35/100
    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.
    Viewport
    width=362px, user-scalable=no, target-densitydpi=device-dpi
    4 recommendations
    • •Mobile compatibility recommendation preview...
    Upgrade to view recommendations

    Typography & Readability

    メイリオ

    WCAG Partial
    54/100
    Readability
    /30
    13/30

    12px · LH 1.60

    Hierarchy
    /20
    11/20

    0.83x ratio · ✓ H1→H6

    WCAG
    /25
    16/25

    1:1 min contrast

    Performance
    /25
    14/25

    1 font

    Heading Font

    メイリオ

    Sans10px

    Body Font

    メイリオ

    Sans12px

    Contrast Ratio

    1:1

    1 issue

    Reading Comfort

    ~41 CPL

    Narrow lines
    10px
    h1
    14px
    h2
    12px
    h3
    12px
    p
    Major Second
    Scale

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

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

    ⚠️ Partial contrast: 1 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.

    ✅ Lean font stack: 1 font families keeps load times fast.

    Buy on MyFonts

    Color Palette

    7 unique colors
    2.12:1 Fail Light
    #ffffff
    Background· 77.7%
    #bab0ac
    Secondary· 2.4%
    #c4cdd1
    Primary· 3.2%
    #503833
    Secondary· 3.1%
    #96a3b0
    Secondary· 2.6%
    #ded5d1
    Secondary· 2.4%

    Business & Marketing Stack

    2 Tools Detected

    Growing

    Behavior Analytics

    2
    Google AnalyticsFree
    Google Tag ManagerFree

    User behavior and product analytics

    1

    Categories

    2

    Total Tools

    0

    Enterprise

    0

    Mid-Market

    Assessment: Growing marketing technology adoption

    Sponsored

    Scripts & Styles

    22 Resources

    16
    Scripts
    6
    Styles
    6
    Async
    0
    Defer

    Top Script Sources

    local(6)googletagmanager.com(3)assets.adobedtm.com(3)google-analytics.com(2)recruit.sc.omtrdc.net(1)

    Website Identity

    isize.com

    27 years old
    Location detected: 🇯🇵 Japanvia ip
    CSC Corporate Domains, Inc.ja

    Social Profiles

    Facebook

    Sponsored

    Last analyzed: 10 May 2026 at 07:45

    Historical Analysis & Change Tracking