curves.co.jp

https://curves.co.jp· First analyzed 21 May 2026· Updated 21 May 2026

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curves.co.jp

Mobile

Sponsored

Hosting Provider

MIRAI CO., LTD.

IP Address

210.172.223.97

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Kani, Japan

ASN

AS7690

Organization

MIRAI CO., LTD.

Server

Nginx

Nameservers

ans02.iic.or.jp.ans01.iic.or.jp.ans03.iic.or.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

3.1 s10%

Speed Index

4.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

5.5 MB

250 requests

Image Optimization

WebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Technology Stack

17 Technologies Detected

Advertising

Google Ads Twitter Ads TikTok Pixel Microsoft Advertising Criteo Taboola Outbrain

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity

UI Components

Swiper Slick Carousel

Libraries

CSS Frameworks

Tag Managers

Web Servers

SEO Analysis

B74/100

Meta Tags10/15

Content9/12

Headings8/8

Technical20/25

E-E-A-T3/7

Images2/7

Links5/5

URL5/5

Social3/5

Freshness2/4

Mobile4/4

Indexability3/3

curves.co.jpcurves.co.jp

【公式】女性専用フィットネスクラブ・スポーツジムなら30分健康フィットネスのカーブス

【カーブス公式】カーブスの公式ウェブサイト。今なら「1回無料体験」。女性だけの30分時短フィットネスジム。

Title Length42 chars

Recommended: 50-60 chars (~260px / 580px)

Description Length53 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (60/80) — critical for accessibility and SEO

5 issues found

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Crawlability

Sitemap

robots.txt

3 rules

Local SEO

Local Search Readiness

20/100

Needs Work

5 12 1

Sponsored

AI & LLM Readiness

D57/100

Bot Access

20/25

Machine Read.

14/25

Schema Data

7/25

Citation

16/25

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

code blocksdef. listsnavheader/footer

Text ratio:4%

Words:381

Token eff.:Optimal

Sections/1K:65.6

Depth:4/5

Structured Data

2 JSON-LD

FAQPage×1.5WebSite

Citation Readiness

Opening Summary43w

Descriptive Headingsavg 1w

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (7)

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.

61/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

20/20

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

Forms & Inputs

10/15

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

7/15

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

ARIA & Roles

4/15

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.

20/100

692 mg

CO₂e / view

5.5 MB

Page Weight

Cleaner Than

New Visitor

790 mg

Returning (cached)

395 mg

Annual (10K/mo)

83.0 kg

Emission Segments

Data Center

154 mg

Network

166 mg

Device

371 mg

Resource Breakdown

JavaScript

188.4 KB

Images

4.9 MB

CSS

383.6 KB

HTML

13.9 KB

Other

2.3 KB

Green Hosting Not Verified

MIRAI CO., LTD.

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

190d

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

30.10.2025

Valid Until

27.11.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

www.curves.co.jp

SHA-256 Fingerprint

1E:A1:6A:6E:7F:4F:DD:E9:A6:79:C5:E4:16:B9:06:F5:45:07:B8:B5...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-cache, must-revalidate, max-age=0)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=UTF-8

date

Thu, 21 May 2026 12:06:26 GMT

expires

Wed, 11 Jan 1984 05:00:00 GMT

link

<https://www.curves.co.jp/wp-json/>; rel="https://api.w.org/...

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

mgf.cybermail.jp

Domain Information

curves.co.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

65/100

Mobile Friendly2 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=1.0

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Noto Sans JP

WCAG AA

66/100

Readability

/30

22/30

22px · LH 1.50

Hierarchy

/20

14/20

0.71x ratio · ✓ H1→H6

WCAG

/25

15/25

4.8:1 min contrast

Performance

/25

15/25

2 fonts · 1 req

Heading Font

Noto Sans JP

Sans16px

Body Font

Noto Sans JP

Sans22px

Contrast Ratio

4.8:1

WCAG AA (≥4.5:1)

Reading Comfort

~38 CPL

Narrow lines

16px

37px

22px

Minor Third

Scale

✅ Excellent readability: 22px body text is ideal for all devices.

✅ Optimal line spacing: 1.50 ratio (ideal range 1.4–1.6).

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 4.8:1).

✅ 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).

Buy on MyFonts

Color Palette

11 unique colors

Light

#7f7f7f

Other· 53.8%

#7e7346

Secondary· 9.2%

#3d0f37

Accent· 6.9%

#60060c

Accent· 6.2%

#eee8b4

Primary· 5.7%

#34632d

Secondary· 4.5%

#554036

Secondary· 4.5%

#b93d31

Accent· 3%

Business & Marketing Stack

4 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

TikTok PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

s.yimg.jp(5)googletagmanager.com(3)px.ladsp.com(3)scripts.clarity.ms(1)penta.a.one.impact-ad.jp(1)

Website Identity

カーブス

0120441029

www.curves.co.jp/

Location detected: 🇯🇵 Japanvia tld

Sponsored

Last analyzed: 21 May 2026 at 12:07

Historical Analysis & Change Tracking