posfie.com

https://posfie.com· First analyzed 17 May 2026· Updated 17 May 2026

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posfie.com

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

57.180.123.27

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Server

Nginx

Nameservers

ns-1001.awsdns-61.net.ns-1378.awsdns-44.org.ns-1777.awsdns-30.co.uk.ns-461.awsdns-57.com.

Performance

Core Web Vitals

Weight

First Contentful Paint

722 ms10%

Speed Index

939 ms10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

370 KB

65 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

Progressive Web App

Web ManifestApple Touch IconTheme Color

Technology Stack

7 Technologies Detected

Analytics

Libraries

CSS Frameworks

Icon Libraries

Advertising

Web Servers

SEO Analysis

B74/100

Meta Tags7/15

Content8/12

Headings8/8

Technical24/25

E-E-A-T2/7

Images1/7

Links5/5

URL5/5

Social5/5

Freshness2/4

Mobile4/4

Indexability3/3

posfie.composfie.com

posfie - みんなでつくるXポストまとめ

posfie（ポスフィー）は、Xのポストをまとめて、みんなに共有するサービスです。XのEnterprise APIを利用して、誰でも安心してまとめを作ることができます。

Title Length23 chars

Recommended: 50-60 chars (~140px / 580px)

Description Length84 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (45/49) — critical for accessibility and SEO

5 issues found

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Crawlability

Sitemap

Type: index

223 URLs

223 sub-sitemaps

robots.txt

65 rules

Local SEO

Local Search Readiness

13/100

Poor

4 12 1

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

Sponsored

AI & LLM Readiness

F34/100

Bot Access

7/25

Machine Read.

7/25

Schema Data

7/25

Citation

13/25

AI Bot Access

3/14 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:2%

Words:479

Token eff.:Optimal

Structured Data

2 JSON-LD

Organization×1.1WebSiteBreadcrumbListSearchAction

Citation Readiness

Opening Summary

Descriptive Headingsavg 1.6w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (12)

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.

60/100

Passed

Critical

Warnings

Images & Alt Text

5/20

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

Semantic Structure

17/20

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.

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.

64/100

A+

37 mg

CO₂e / view

369.5 KB

Page Weight

90%

Cleaner Than

New Visitor

43 mg

Returning (cached)

21 mg

Annual (10K/mo)

4.5 kg

Emission Segments

Data Center

2 mg

Network

11 mg

Device

25 mg

Resource Breakdown

JavaScript

307.7 KB

Images

1.5 KB

HTML

17.3 KB

Other

42.9 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

21%Critical

Interactive

HTTPS

No WAF

254d

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

28.12.2025

Valid Until

26.01.2027

OCSP Stapling

Enabled

Subject Alternative Names (2)

posfie.com*.posfie.com

SHA-256 Fingerprint

7F:18:F2:B9:FF:0B:CA:D6:E9:96:BD:F5:8C:E1:50:5E:7F:B2:7B:3A...

Top Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

content-encoding

zstd

content-type

text/html; charset=UTF-8

date

Sun, 17 May 2026 05:42:49 GMT

server

nginx

vary

User-Agent

set-cookie

store

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

posfie.com

Domain Age

1y 6m

Created

14.11.2024

Expires

14.11.2026

Last Updated

15.10.2025

Registrar

GMO Internet Group, Inc. d/b/a Onamae.com

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

GDPR Indicators

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.

60/100

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, initial-scale=1.0

2 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

-apple-system

WCAG Partial

60/100

Readability

/30

9/30

13px · LH --

Hierarchy

/20

15/20

1.39x ratio · ✓ H1→H6

WCAG

/25

16/25

2.07:1 min contrast

Performance

/25

20/25

System fonts

Heading Font

-apple-system

Sans18px

Body Font

-apple-system

Sans13px

Contrast Ratio

2.07:1

7 issues

Reading Comfort

~42 CPL

Narrow lines

18px

16px

20px

13px

❌ Critical: 13px body text is too small. Minimum 14px, recommend 16px+.

❌ Very complex text: Flesch score 11/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 7 elements below WCAG AA threshold (min 2.1:1).

✅ 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.

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

Flesch 11

Color Palette

8 unique colors

9.45:1 AAA Light

#ffffff

Background· 80.8%

#4d4442

Secondary· 1.6%

#32c7c7

Primary· 0%

#c5cfd1

Secondary· 3.1%

#e1dbce

Secondary· 1.4%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

14 Resources

Scripts

Styles

Async

Defer

Top Script Sources

s.tgstc.com(5)googletagmanager.com(2)securepubads.g.doubleclick.net(2)google-analytics.com(1)ads.pubmatic.com(1)

Website Identity

posfie - みんなでつくるXポストまとめ

1 year old

Location detected: 🇯🇵 Japanvia ip

GMO Internet Group, Inc. d/b/a Onamae.comja

Social Profiles

Facebook X (Twitter)Instagram TikTok

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Last analyzed: 17 May 2026 at 05:43

Historical Analysis & Change Tracking