century.co.jp

https://century.co.jp· First analyzed 20 May 2026· Updated 20 May 2026

Export

century.co.jp

Mobile

Sponsored

Hosting Provider

Cloudflare

cloudflare.com

IP Address

172.67.136.230

Site Location

🇯🇵 Japanvia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Apache

CDN

Cloudflare

WAF

Cloudflare

Nameservers

wells.ns.cloudflare.com.vivienne.ns.cloudflare.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.5 s10%

Speed Index

2.0 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

11.5 MB

80 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Cloudflare

CDN

Cloudflare

Technology Stack

5 Technologies Detected

Libraries

Analytics

Web Servers

SEO Analysis

B73/100

Meta Tags13/15

Content10/12

Headings8/8

Technical18/25

E-E-A-T5/7

Images1/7

Links2/5

URL5/5

Social4/5

Freshness0/4

Mobile4/4

Indexability3/3

century.co.jpcentury.co.jp

株式会社センチュリー国産産業用ドローン緊急地震速報 HDDケース HDDコピーモバイル充電器

センチュリーでは国産ドローンや緊急地震速報等の防災関連製品、HDDケースや小型モニタ等のPC周辺機器、モバイルバッテリー、電子雑貨機器等の開発、製造、販売など幅広い製品・サービスを提供しています。

Title Length50 chars

Recommended: 50-60 chars (~310px / 580px)

Description Length98 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (53/63) — critical for accessibility and SEO

6 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

3,467 URLs

robots.txt

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

D41/100

Bot Access

20/25

Machine Read.

13/25

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. listsnavheader/footer

Text ratio:11%

Words:317

Token eff.:Optimal

Sections/1K:6.3

Depth:3/5

Structured Data

1 JSON-LD

Citation Readiness

Opening Summary

Descriptive Headingsavg 1w

Canonical URL

Open Graph3/3

Twitter Card1/3

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.

65/100

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

5/15

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

11/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

3 recommendations

•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.

26/100

1.19 g

CO₂e / view

11.5 MB

Page Weight

Cleaner Than

New Visitor

1.36 g

Returning (cached)

682 mg

Annual (10K/mo)

143.1 kg

Emission Segments

Data Center

58 mg

Network

351 mg

Device

784 mg

Resource Breakdown

JavaScript

81.4 KB

Images

6.3 MB

CSS

14.0 KB

HTML

9.2 KB

Other

5.1 MB

Green Hosting Verified

Cloudflare

GWF Verified

7 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

21%Critical

Interactive

HTTPS

No WAF

284d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Japan Registry Services Co., Ltd.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/1.1

Valid From

10.02.2026

Valid Until

28.02.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.century.co.jpcentury.co.jp

SHA-256 Fingerprint

5C:AB:F0:9D:3D:6C:9F:E5:4C:A9:88:40:B9:E2:60:3C:D4:58:63:02...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations

Upgrade to view header details

HTTP Headers

Developer Console

accept-ranges

bytes

cache-control

🔴 No Cache(no-cache)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

9074

content-type

text/html; charset=UTF-8

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt2.aspmx.l.google.com

alt4.aspmx.l.google.com

alt1.aspmx.l.google.com

aspmx.l.google.com

+1 more

Domain Information

century.co.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

49/100

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=device-width

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial

64/100

Readability

/30

19/30

16px · LH --

Hierarchy

/20

9/20

1.25x ratio

WCAG

/25

14/25

1:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

-apple-system

Sans20px

Body Font

-apple-system

Sans16px

Contrast Ratio

1:1

23 issues

Reading Comfort

Single Font Family

left aligned

20px

19px

16px

✅ Excellent readability: 16px body text is ideal for all devices.

⚠️ Partial contrast: 23 elements below WCAG AA threshold (min 1.0:1).

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

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

✅ System fonts: Zero font loading delay — best possible LCP impact.

Color Palette

11 unique colors

4.44:1 AA Large Light

#ffffff

Background· 29.700000000000003%

#7d7676

Other· 4.3%

#e2e3dc

Border· 14%

#004bc8

Primary· 12.7%

#fdf1dc

Accent· 8.8%

#b2c0be

Secondary· 5.9%

#d9c0a6

Secondary· 4.7%

#1f68d8

Accent· 4.4%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

century.co.jp(2)ajax.googleapis.com(2)googletagmanager.com(1)cdn.jsdelivr.net(1)

Website Identity

株式会社センチュリー

Corporation

www.century.co.jp/

Location detected: 🇯🇵 Japanvia tld

📧 Google Workspaceja

Sponsored

Last analyzed: 20 May 2026 at 09:32

Historical Analysis & Change Tracking

century.co.jp

株式会社センチュリー 国産 産業用ドローン 緊急地震速報 HDDケース HDDコピー モバイル充電器

Accessibility

Carbon Footprint

Mobile Compatibility

Color Palette

株式会社センチュリー

株式会社センチュリー国産産業用ドローン緊急地震速報 HDDケース HDDコピーモバイル充電器