teachme.jp

https://teachme.jp· First analyzed 16 May 2026· Updated 16 May 2026

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teachme.jp

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

54.248.2.28

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Nameservers

ns-64.awsdns-08.com.ns-661.awsdns-18.net.ns-1493.awsdns-58.org.ns-1868.awsdns-41.co.uk.

Performance

Core Web Vitals

Weight

First Contentful Paint

2.4 s10%

Speed Index

3.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

148 KB

28 requests

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Infrastructure

Hosting

Amazon Web Services (AWS)

Technology Stack

4 Technologies Detected

Analytics

Tag Managers

SEO Analysis

D45/100

Meta Tags4/15

Content0/12

Headings6/8

Technical16/25

E-E-A-T3/7

Images1/7

Links3/5

URL5/5

Social3/5

Freshness0/4

Mobile1/4

Indexability3/3

teachme.jpteachme.jp

Teachme Biz

No description available for this page.

Title Length11 chars

Recommended: 50-60 chars (~68px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (3)

• Missing meta description — important for click-through rates in SERPs
• Very thin content (23 words). Search engines need substantial content for ranking.
• Most images missing alt text (1/1) — critical for accessibility and SEO

10 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

6 rules

Local SEO

Local Search Readiness

3/100

Poor

1 14 2

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

Sponsored

AI & LLM Readiness

F13/100

Bot Access

3/25

Machine Read.

1/25

Schema Data

0/25

Citation

9/25

AI Bot Access

0/14 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:0%

Words:21

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 (12)

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.

58/100

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

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

7/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

1/15

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.

68/100

A+

15 mg

CO₂e / view

147.7 KB

Page Weight

95%

Cleaner Than

New Visitor

17 mg

Returning (cached)

9 mg

Annual (10K/mo)

1.8 kg

Emission Segments

Data Center

<0.001 g

Network

4 mg

Device

10 mg

Resource Breakdown

JavaScript

145.5 KB

Images

342 B

HTML

1.5 KB

Other

379 B

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

81%Very Good

Interactive

HTTPS

No WAF

100d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.2

HTTP Protocol

HTTP/2

Valid From

28.07.2025

Valid Until

24.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

teachme.jp

SHA-256 Fingerprint

4D:DB:42:E1:24:BD:81:B5:44:BD:25:20:B7:33:A4:7D:BE:D6:4E:AF...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

content-encoding

📦 Gzip(gzip)

content-security-policy

frame-ancestors *

content-type

text/html; charset=utf-8

date

Sat, 16 May 2026 04:18:14 GMT

p3p

CP="UNI CUR OUR"

referrer-policy

strict-origin-when-cross-origin

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (7)

aspmx4.googlemail.com

aspmx2.googlemail.com

aspmx5.googlemail.com

aspmx3.googlemail.com

+3 more

Domain Information

teachme.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookie Consent Banner

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.

70/100

Mobile Friendly16 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, maximum-scale=2, minimum-scale=1

2 recommendations

•Mobile compatibility recommendation preview...

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Typography & Readability

Helvetica

WCAG Partial

62/100

Readability

/30

14/30

14px · LH --

Hierarchy

/20

13/20

1.29x ratio · ✓ H1→H6

WCAG

/25

19/25

3.42:1 min contrast

Performance

/25

16/25

1 font

Heading Font

Helvetica

Sans18px

Body Font

Helvetica

Sans14px

Contrast Ratio

3.42:1

2 issues

Reading Comfort

Single Font Family

left aligned

18px

14px

⚠️ Small text: 14px may strain on mobile. Use ≥16px for WCAG compliance.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 3.4:1).

✅ 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.

✅ 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 MyFonts

Color Palette

4 unique colors

Light

#c1c8c7

Other· 0.9%

#f3f4f6

Primary· 94.8%

#d8deec

Secondary· 3.3000000000000003%

#6c8ba7

Secondary· 0.9%

Business & Marketing Stack

3 Tools Detected

Advanced

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

Ad platforms and retargeting pixels

Sponsored

Scripts & Styles

8 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(3)connect.facebook.net(2)google-analytics.com(1)cdn.jsdelivr.net(1)asset.teachme.jp(1)

Website Identity

teachme.jp

Location detected: 🇯🇵 Japanvia tld

📧 Google Workspaceen

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Last analyzed: 16 May 2026 at 04:18

Historical Analysis & Change Tracking