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aumasson.jp

https://aumasson.jp· First analyzed 01 Jun 2026· Updated 01 Jun 2026
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aumasson.jp
Desktop screenshot of aumasson.jp
Mobile screenshot of aumasson.jp
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.151.84

Site Location

🇯🇵 Japanvia tld

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

naomi.ns.cloudflare.com.seth.ns.cloudflare.com.

Performance

100

Core Web Vitals

Weight

First Contentful Paint
642 ms10%
Speed Index
835 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.4 MB
13 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Substack

Technology Stack

1 Technologies Detected

CDN

1
Cloudflare

SEO Analysis

D47/100
13
9
2
Meta Tags4/15
Content7/12
Headings3/8
Technical12/25
E-E-A-T0/7
Images4/7
Links5/5
URL5/5
Social0/5
Freshness0/4
Mobile4/4
Indexability3/3
A
aumasson.jpaumasson.jp

Jean-Philippe Aumasson

No description available for this page.

Title Length22 chars

Recommended: 50-60 chars (~132px / 580px)

Description Length0 chars

Recommended: 120-160 chars

Issues (2)

  • • Missing meta description — important for click-through rates in SERPs
  • • Missing H1 tag — every page should have exactly one H1

11 issues found

Upgrade to view details

Crawlability

Sitemap
robots.txt

2 rules

Allows all crawlers

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.

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AI & LLM Readiness

F28/100
Bot Access
20/25
Machine Read.
5/25
Schema Data
0/25
Citation
3/25

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
nav
Text ratio:13%
Words:112
Token eff.:Too Short
Sections/1K:53.6
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 1.7w
Canonical URL
Open Graph0/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (10)
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.
B
71/100
8
Passed
4
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
11/20
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
9/15
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.
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.
52/100
C
147 mg
CO₂e / view
1.4 MB
Page Weight
60%
Cleaner Than
New Visitor
168 mg
vs
Returning (cached)
84 mg
Annual (10K/mo)
17.6 kg
Emission Segments
Data Center
7 mg
Network
43 mg
Device
97 mg
Resource Breakdown
JavaScript
961 B
Images
1.4 MB
CSS
1.9 KB
HTML
2.4 KB
Green Hosting Verified
Cloudflare
GWF Verified
4 recommendations
  • •Carbon footprint recommendation preview...
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A

Security Score

81%Very Good
Static / Informational

HTTPS

WAF

36d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Google Trust Services

Key Algorithm

ECDSA (secp256r1) (256 bit)

Signature

ECDSA with SHA-256

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2+H3

Valid From

08.04.2026

Valid Until

07.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

aumasson.jp*.aumasson.jp

SHA-256 Fingerprint

17:7E:43:E4:40:69:DB:7A:48:87:A4:73:48:AA:64:F7:33:A0:5B:67...

Recommendations

Security recommendation preview

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HTTP Headers

Developer Console

access-control-allow-origin
*
age
0
alt-svc
h3=":443"; ma=86400
cache-control
🟡 600s(max-age=600)
cf-cache-status
DYNAMIC
cf-ray🇮🇹 Milan
a0505b0d4832edca-MXP
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

0

SPF
DKIM
DMARC

Domain Information

aumasson.jp

DNSSEC
Not Enabled

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.
D
55/100
Mobile Friendly
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Silkscreen + Arial

WCAG AA
68/100
Readability
/30
21/30

16px · LH 1.80

Hierarchy
/20
6/20
WCAG
/25
22/25

4.51:1 min contrast

Performance
/25
19/25

System fonts

Heading Font

Silkscreen

Sans

Body Font

Arial

Sans16px

Contrast Ratio

4.51:1

WCAG AA (≥4.5:1)

Reading Comfort

~38 CPL

Narrow lines
40px
h2
29px
h3
16px
p

✅ Excellent readability: 16px body text is ideal for all devices.

❌ Very complex text: Flesch score 25/100. Consider shorter sentences and simpler words.

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

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

Buy on MyFontsFlesch 25

Color Palette

7 unique colors
5.55:1 AA Light
#ffffff
Background· 79.69999999999999%
#606a6e
Other· 2.4%
#23516c
Primary· 5.9%
#659cba
Secondary· 4.3%
#bebcad
Secondary· 2.8%
#814230
Secondary· 2.4%

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Scripts & Styles

1 Resources

0
Scripts
1
Styles
0
Async
0
Defer

Top Script Sources

Website Identity

aumasson.jp

Location detected: 🇯🇵 Japanvia tld
en

Social Profiles

LinkedInGitHub

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Last analyzed: 01 Jun 2026 at 18:42

Historical Analysis & Change Tracking