zf-web.com

https://zf-web.com· First analyzed 24 May 2026· Updated 24 May 2026

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zf-web.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

52.199.127.131

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Nameservers

ns1.kagoya.net.ns0.kagoya.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

1.3 s10%

Speed Index

1.7 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

8.5 MB

158 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

14 Technologies Detected

Advertising

Google Ads Google AdSense Criteo Outbrain

Icon Libraries

Font Awesome Material Icons

Analytics

Libraries

UI Components

CSS Frameworks

Fonts

Tag Managers

Payments

SEO Analysis

D56/100

Meta Tags5/15

Content10/12

Headings6/8

Technical15/25

E-E-A-T0/7

Images1/7

Links5/5

URL5/5

Social3/5

Freshness0/4

Mobile3/4

Indexability3/3

zf-web.comzf-web.com

ぎふチャン｜岐阜放送公式サイト

Title Length15 chars

Recommended: 50-60 chars (~93px / 580px)

Description Length1 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (40/74) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: standard

3,978 URLs

robots.txt

6 rules

Sitemap reference found

Local SEO

Local Search Readiness

6/100

Poor

2 13 2

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

Sponsored

AI & LLM Readiness

F39/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

12/25

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. listsnav

Text ratio:11%

Words:8,323

Token eff.:Excessive

Sections/1K:0.1

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary85w

Descriptive Headingsavg 3.7w

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

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.

83/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

18/20

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

11/15

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.

2 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.

26/100

876 mg

CO₂e / view

8.5 MB

Page Weight

Cleaner Than

New Visitor

1.00 g

Returning (cached)

500 mg

Annual (10K/mo)

105.1 kg

Emission Segments

Data Center

43 mg

Network

257 mg

Device

575 mg

Resource Breakdown

JavaScript

666.0 KB

Images

7.8 MB

CSS

45.8 KB

Fonts

6.2 KB

HTML

12.3 KB

Other

300 B

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

8 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

64d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (4096 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

29.04.2026

Valid Until

28.07.2026

Subject Alternative Names (2)

www.zf-web.comzf-web.com

SHA-256 Fingerprint

FD:3D:BE:CC:04:2E:76:38:DC:82:53:93:10:7F:ED:83:8F:AE:2A:F5...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

accept-ranges

bytes

age

43542

content-encoding

📦 Gzip(gzip)

content-length

12263

content-type

text/html; charset=utf-8

date

Sun, 24 May 2026 21:23:29 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

MX Records (1)

dmail.kagoya.net

Domain Information

zf-web.com

Domain Age

25y 7m

Created

11.10.2000

Expires

11.10.2026

Last Updated

24.11.2025

Registrar

Kagoya Japan Inc.

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

Legitimate interest basis 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.

67/100

Mobile Friendly11 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

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans

WCAG AAA

68/100

Readability

/30

12/30

12px · LH 1.33

Hierarchy

/20

12/20

1.46x ratio

WCAG

/25

24/25

15.43:1 min contrast

Performance

/25

20/25

2 fonts · 3 req

Heading Font

Open Sans

Sans18px

Body Font

Open Sans

Sans12px

Contrast Ratio

15.43:1

WCAG AAA (≥7:1)

Reading Comfort

~44 CPL

Narrow lines

18px

22px

16px

14px

12px

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

⚠️ Tight line spacing (1.33). Increase to 1.4–1.6 for better readability.

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 15.4:1).

⚠️ Minor heading issue: 0 level skip(s) detected. Maintain sequential order for screen readers.

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

✅ Lean font stack: 2 font families keeps load times fast.

GGoogle Fonts

Color Palette

9 unique colors

5.74:1 AA Dark

#666666

Other· 38.7%

#ffffff

Background· 20.4%

#1e1608

Primary· 15.5%

#2e2626

Text· 7.4%

#66604b

Secondary· 4.9%

#053043

Accent· 4.2%

#415555

Secondary· 2.8%

#64707f

Secondary· 2.1%

Business & Marketing Stack

4 Tools Detected

Enterprise

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Social Media

Twitter/X WidgetsFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

30 Resources

Scripts

Styles

Async

Defer

Top Script Sources

zf-web.com(9)googletagmanager.com(3)local(2)script.4dex.io(1)pagead2.googlesyndication.com(1)

Website Identity

zf-web.com

25 years old

Location detected: 🇯🇵 Japanvia ip

Kagoya Japan Inc.ja

Social Profiles

X (Twitter)YouTube

Sponsored

Last analyzed: 24 May 2026 at 21:24

Historical Analysis & Change Tracking