blogcircle.jp

https://blogcircle.jp· First analyzed 01 May 2026· Updated 01 May 2026

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blogcircle.jp

Mobile

Sponsored

Hosting Provider

SAKURA Internet Inc.

IP Address

133.125.14.71

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS7684

Server

Apache

Nameservers

ns1.blogcircle.jp.ns2.blogcircle.jp.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.0 s10%

Speed Index

2.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

897 KB

66 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

SAKURA Internet Inc.

Technology Stack

12 Technologies Detected

Advertising

Google Ads Criteo Outbrain

Analytics

Libraries

CSS Frameworks

Icon Libraries

Fonts

Payments

Web Servers

Languages

SEO Analysis

D49/100

Meta Tags5/15

Content10/12

Headings6/8

Technical9/25

E-E-A-T0/7

Images1/7

Links4/5

URL5/5

Social3/5

Freshness0/4

Mobile3/4

Indexability3/3

blogcircle.jpblogcircle.jp

ブログサークル | ブログにフォーカスしたSNS

ブログにフォーカスしたコミュニティーサービス(SNS)。同じ趣味の仲間とつながろう！

Title Length24 chars

Recommended: 50-60 chars (~146px / 580px)

Description Length42 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (32/32) — critical for accessibility and SEO

14 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

2 rules

Allows all crawlers

Local SEO

Local Search Readiness

0/100

Poor

15 2

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

Sponsored

AI & LLM Readiness

F35/100

Bot Access

20/25

Machine Read.

5/25

Schema Data

0/25

Citation

10/25

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. listsheader/footer

Text ratio:11%

Words:8,172

Token eff.:Excessive

Sections/1K:0.2

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary85w

Descriptive Headingsavg 3.8w

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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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.

54/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

12/20

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

Forms & Inputs

7/15

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.

5 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.

37/100

111 mg

CO₂e / view

897.4 KB

Page Weight

80%

Cleaner Than

New Visitor

127 mg

Returning (cached)

63 mg

Annual (10K/mo)

13.3 kg

Emission Segments

Data Center

25 mg

Network

27 mg

Device

60 mg

Resource Breakdown

JavaScript

492.0 KB

Images

348.4 KB

CSS

22.7 KB

Fonts

6.2 KB

HTML

4.6 KB

Other

23.5 KB

Green Hosting Not Verified

SAKURA Internet Inc.

6 recommendations

•Carbon footprint recommendation preview...

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Security Score

0%Critical

Critical / Transactional

HTTPS

No WAF

244d

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/1.1

Valid From

01.12.2025

Valid Until

31.12.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

blogcircle.jp

SHA-256 Fingerprint

BC:7C:73:26:33:B0:AE:29:75:E3:9A:2F:01:4B:C7:55:AA:DF:5F:9D...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

cache-control

🔴 No Cache(no-store, no-cache, must-revalidate)

connection

Keep-Alive

content-encoding

📦 Gzip(gzip)

content-length

4458

content-type

text/html; charset=utf-8

date

Fri, 01 May 2026 01:33:30 GMT

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mail2.blogcircle.jp

Domain Information

blogcircle.jp

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.

64/100

Mobile Friendly13 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, minimum-scale=1.0, maximum-scale=1.0, user-scalable=yes

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Open Sans

WCAG Partial

60/100

Readability

/30

14/30

12px · LH 1.33

Hierarchy

/20

14/20

1.46x ratio · ✓ H1→H6

WCAG

/25

14/25

3.54:1 min contrast

Performance

/25

18/25

2 fonts · 2 req

Heading Font

Open Sans

Sans18px

Body Font

Open Sans

Sans12px

Contrast Ratio

3.54:1

27 issues

Reading Comfort

~39 CPL

Narrow lines

18px

32px

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.

❌ Very complex text: Flesch score 0/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 27 elements below WCAG AA threshold (min 3.5:1).

✅ 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.

GGoogle FontsFlesch 0

Color Palette

6 unique colors

6.39:1 AA Dark

#5f5f5f

Other· 70.1%

#ffffff

Background· 19.400000000000002%

#4d6687

Primary· 1.2%

#6b809b

Secondary· 0.9%

Business & Marketing Stack

2 Tools Detected

Advanced

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Advertising

Google AdsEnterprise

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

22 Resources

Scripts

Styles

Async

Defer

Top Script Sources

local(12)fundingchoicesmessages.google.com(2)google-analytics.com(1)googletagservices.com(1)securepubads.g.doubleclick.net(1)

Website Identity

blogcircle.jp

Location detected: 🇯🇵 Japanvia tld

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Last analyzed: 01 May 2026 at 01:34

Historical Analysis & Change Tracking