amass.jp

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

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amass.jp

Mobile

Sponsored

Hosting Provider

SAKURA

IP Address

182.48.12.134

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Osaka, Japan

ASN

AS7684

Organization

SAKURA

Server

Nginx

Nameservers

ns1.dns.ne.jp.ns2.dns.ne.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

905 ms10%

Speed Index

1.2 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

681 KB

86 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

SAKURA

Technology Stack

8 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel

Advertising

Google Ads Google AdSense

Libraries

jQuery

Web Servers

Nginx

Languages

PHPv7.4.33

SEO Analysis

D51/100

Meta Tags5/15

Content8/12

Headings0/8

Technical15/25

E-E-A-T0/7

Images4/7

Links4/5

URL5/5

Social3/5

Freshness0/4

Mobile4/4

Indexability3/3

amass.jpamass.jp

amass

ニュース・サイト「amass」では音楽を中心にさまざまな情報をお伝えします

Title Length5 chars

Recommended: 50-60 chars (~33px / 580px)

Description Length37 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Missing viewport meta tag — page may not be mobile-friendly (Google uses mobile-first indexing)

7 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

4 URLs

4 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Allows all crawlers

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

F30/100

Bot Access

20/25

Machine Read.

2/25

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

Text ratio:10%

Words:255

Token eff.:Too Short

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headings

Canonical URL

Open Graph3/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (11)

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.

64/100

Passed

Critical

Warnings

Images & Alt Text

20/20

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

Semantic Structure

6/20

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

9/15

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.

3 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.

28/100

84 mg

CO₂e / view

681.0 KB

Page Weight

80%

Cleaner Than

New Visitor

96 mg

Returning (cached)

48 mg

Annual (10K/mo)

10.1 kg

Emission Segments

Data Center

19 mg

Network

20 mg

Device

45 mg

Resource Breakdown

JavaScript

521.6 KB

Images

54.6 KB

CSS

10.8 KB

HTML

29.0 KB

Other

65.0 KB

Green Hosting Not Verified

SAKURA

7 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

90d

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

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

20.05.2026

Valid Until

19.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

amass.jpwww.amass.jp

SHA-256 Fingerprint

5D:2D:FA:DC:7E:25:9D:29:95:DD:D8:60:16:41:BB:CD:FB:E3:94:3C...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-type

text/html; charset=UTF-8

date

Thu, 21 May 2026 01:12:40 GMT

server

nginx

x-powered-by

PHP/7.4.33

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

amass.jp

Domain Information

amass.jp

DNSSEC

Not Enabled

Privacy & Compliance

Quantcast Choice

Cookie Consent Banner

Quantcast Choice

GDPR Indicators

Cookie consent banner detected

CMP: Quantcast Choice

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.

37/100

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.

3 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Times New Roman

WCAG AA

52/100

Readability

/30

10/30

8px · LH --

Hierarchy

/20

9/20

WCAG

/25

19/25

6.25:1 min contrast

Performance

/25

14/25

1 font

Heading Font

Times New Roman

Body Font

Times New Roman

Serif8px

Contrast Ratio

6.25:1

WCAG AA (≥4.5:1)

Reading Comfort

Single Family

left aligned

8px

❌ Critical: 8px body text is too small. Minimum 14px, recommend 16px+.

❌ Very complex text: Flesch score 24/100. Consider shorter sentences and simpler words.

✅ WCAG AA contrast: All text meets 4.5:1 ratio (min 6.2:1).

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

⚠️ Missing font-display: swap — users may see invisible text while fonts load (FOIT).

Buy on MyFontsFlesch 24

Color Palette

8 unique colors

11.46:1 AAA Dark

#212121

Other· 5.1%

#d8dad9

Other· 2.4%

#eff8ff

Primary· 78.4%

#3e555f

Secondary· 3.9%

#7dcae3

Accent· 3%

#b7ccd4

Secondary· 2.8%

#b7fcfd

Accent· 2.1%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Social Media

Twitter/X WidgetsFree

Facebook SDKFree

Social widgets and sharing tools

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

pagead2.googlesyndication.com(5)amass.jp(4)fundingchoicesmessages.google.com(4)connect.facebook.net(2)platform.twitter.com(2)

Website Identity

amass.jp

Location detected: 🇯🇵 Japanvia tld

Social Profiles

Facebook X (Twitter)

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Last analyzed: 21 May 2026 at 01:13

Historical Analysis & Change Tracking