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japan-dev.com

https://japan-dev.com· First analyzed 29 May 2026· Updated 29 May 2026
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japan-dev.com
Desktop screenshot of japan-dev.com
Mobile screenshot of japan-dev.com
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

104.26.7.99

Site Location

🇨🇦 Canadavia ip

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

coco.ns.cloudflare.com.alec.ns.cloudflare.com.

Performance

98

Core Web Vitals

Weight

First Contentful Paint
908 ms10%
Speed Index
1.2 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
801 KB
157 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Hybrid
⚙️ SSR
Frontend
Framework
Nuxt.js
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

3 Technologies Detected

Meta Frameworks

1
Nuxt.js

CSS Frameworks

1
Tailwind CSS

CDN

1
Cloudflare

SEO Analysis

B78/100
25
2
1
Meta Tags14/15
Content3/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images5/7
Links5/5
URL5/5
Social5/5
Freshness2/4
Mobile3/4
Indexability3/3
J
japan-dev.comjapan-dev.com

Software Developer Jobs in Japan | Japan Dev

Hand-picked jobs in Japan for English-speaking software developers and tech folks. No Japanese required. Visa sponsorship from overseas. Vetted companies.

Title Length44 chars

Recommended: 50-60 chars (~269px / 580px)

Description Length154 chars

Recommended: 120-160 chars

Issues (1)

  • • Very thin content (8 words). Search engines need substantial content for ranking.

3 issues found

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Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

31/100
Needs Work
9 10

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AI & LLM Readiness

F36/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
7/25
Citation
2/25

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:3%
Words:2,178
Token eff.:Optimal

Structured Data

2 JSON-LD
Organization×1.1WebSiteSearchAction
sameAs entity links

Citation Readiness

Opening Summary
Descriptive Headings
Canonical URL
Open Graph0/3
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.
B
74/100
10
Passed
3
Critical
0
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
16/20
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
12/15
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
4/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •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
B
81 mg
CO₂e / view
801.4 KB
Page Weight
80%
Cleaner Than
New Visitor
93 mg
vs
Returning (cached)
46 mg
Annual (10K/mo)
9.7 kg
Emission Segments
Data Center
4 mg
Network
24 mg
Device
53 mg
Resource Breakdown
JavaScript
540.2 KB
Images
27.4 KB
CSS
178.0 KB
HTML
55.3 KB
Other
414 B
Green Hosting Verified
Cloudflare
GWF Verified
3 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

WAF

49d

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

19.04.2026

Valid Until

18.07.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

japan-dev.com

SHA-256 Fingerprint

C1:0A:4C:04:13:1F:97:34:BB:0C:ED:F9:12:0E:DF:99:BA:AA:F5:DE...

Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age
6853
alt-svc
h3=":443"; ma=86400
cache-control
🟡 4 Hours(max-age=14400)
cf-cache-status
HIT
cf-ray🇺🇸 Washington DC
a0360002ec9620a0-IAD
content-encoding
⚡ Brotli(br)
Good Warning Issue

Email Infrastructure

Google Workspace

Score

95

SPF
DKIM
DMARC

DMARC Policy

Reject (Strictest)

MX Records (5)

alt2.aspmx.l.google.com
alt3.aspmx.l.google.com
aspmx.l.google.com
alt1.aspmx.l.google.com

+1 more

Domain Information

japan-dev.com

Domain Age
7y 2m

Created

21.03.2019

Expires

21.03.2034

Last Updated

28.02.2025

Registrar

Cloudflare, Inc.

DNSSEC
Not Enabled

Privacy & Compliance

Cookie Consent Banner
Privacy Policy
Terms of Service

GDPR Indicators

Privacy policy page linked

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.
C
68/100
Mobile Friendly423 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=5
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Source Sans Pro + Open Sans

WCAG Partial
66/100
Readability
/30
16/30

14px · LH 1.86

Hierarchy
/20
18/20

3.57x ratio · ✓ H1→H6

WCAG
/25
18/25

2.6:1 min contrast

Performance
/25
14/25

3 fonts · 5 req

Heading Font

Source Sans Pro

Sans50px

Body Font

Open Sans

Sans14px

Contrast Ratio

2.6:1

2 issues

Reading Comfort

~44 CPL

Narrow lines
50px
h1
36px
h2
21px
h3
14px
p

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

⚠️ Wide line spacing (1.86). 1.4–1.6 is optimal for body text.

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 2.6:1).

✅ Perfect heading hierarchy: Sequential h1→h2→h3 with single H1 — ideal for SEO & accessibility.

✅ Strong hierarchy: Headlines are 3.6x larger than body text.

✅ Smart font loading: font-display: swap prevents invisible text during load (FOIT).

Buy on MyFontsFlesch 51

Color Palette

5 unique colors
Light
#ffffff
Background· 87.2%
#a1abbe
Primary· 3.7%
#2c529f
Accent· 3.1%
#d8e1e8
Secondary· 2.7%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

1
Google AnalyticsFree

User behavior and product analytics

1

Categories

1

Total Tools

0

Enterprise

0

Mid-Market

Assessment: Growing marketing technology adoption

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Scripts & Styles

13 Resources

3
Scripts
10
Styles
1
Async
2
Defer

Top Script Sources

local(1)accounts.google.com(1)static.cloudflareinsights.com(1)

Website Identity

Japan Dev

Japan Dev

Organization

Hand-picked jobs in Japan for English-speaking software developers and tech folks. No Japanese required. Visa sponsorship from overseas. Vetted companies.

contact@japan-dev.com
7 years old
Location detected: 🇨🇦 Canadavia ip
Cloudflare, Inc.📧 Google Workspaceen

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Last analyzed: 29 May 2026 at 13:56

Historical Analysis & Change Tracking