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sunplan-co.jp

https://sunplan-co.jp· First analyzed 14 May 2026· Updated 14 May 2026
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sunplan-co.jp
Desktop screenshot of sunplan-co.jp
Mobile screenshot of sunplan-co.jp
Mobile

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Hosting Provider

Cloudflare
cloudflare.com

IP Address

172.67.218.92

Site Location

🇯🇵 江戸川区, Japanvia schema_nap

Server Location

🇨🇦 Toronto, Canada

ASN

AS13335

Organization

Cloudflare, Inc.

Server

Cloudflare

CDN

Cloudflare

WAF

Cloudflare

Nameservers

dorthy.ns.cloudflare.com.miles.ns.cloudflare.com.

Performance

99

Core Web Vitals

Weight

First Contentful Paint
718 ms10%
Speed Index
933 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.6 MB
20 requests

Image Optimization

Lazy LoadWebP
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
Cloudflare
CDN
Cloudflare

Technology Stack

4 Technologies Detected

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Icon Libraries

1
Font Awesome

CDN

1
Cloudflare

SEO Analysis

B78/100
24
1
1
Meta Tags14/15
Content7/12
Headings8/8
Technical23/25
E-E-A-T2/7
Images2/7
Links5/5
URL5/5
Social5/5
Freshness0/4
Mobile4/4
Indexability3/3
S
sunplan-co.jpsunplan-co.jp

株式会社サンプラン | 道路舗装工事や土木工事を通し、社会基盤の整備、安全で快適な環境・空間づくり

道路舗装工事、土木工事を承っております。 道路の舗装工事や土木工事を通して、社会基盤の整備に積極的に取り組み、安全で快適な環境・空間づくりに努めております。 職人が培ってきた技術と経験を生かし施工をご提案させていただきます。道路舗装工事、土木工事のことなら「株式会社サンプラン」へお問い合わせ、ご相談ください。

Title Length49 chars

Recommended: 50-60 chars (~301px / 580px)

Description Length155 chars

Recommended: 120-160 chars

Issues (1)

  • • Most images missing alt text (9/14) — critical for accessibility and SEO

2 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

1 URLs

1 sub-sitemaps

robots.txt

1 rules

Sitemap reference found

Allows all crawlers

Local SEO

Local Search Readiness

34/100
Needs Work
9 11

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AI & LLM Readiness

D42/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
5/25
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
navheader/footer
Text ratio:4%
Words:57
Token eff.:Too Short
Sections/1K:50
Depth:2/5

Structured Data

2 JSON-LD
Organization×1.1WebSite

Citation Readiness

Opening Summary
Descriptive Headingsavg 1.2w
Canonical URL
Open Graph3/3
Twitter Card3/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
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.
A
88/100
14
Passed
1
Critical
0
Warnings
Images & Alt Text
20/20
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
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
9/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
1 recommendation
  • •Accessibility recommendation preview...
Upgrade to view recommendations

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.
54/100
C
164 mg
CO₂e / view
1.6 MB
Page Weight
60%
Cleaner Than
New Visitor
187 mg
vs
Returning (cached)
93 mg
Annual (10K/mo)
19.6 kg
Emission Segments
Data Center
8 mg
Network
48 mg
Device
107 mg
Resource Breakdown
JavaScript
7.0 KB
Images
1.5 MB
CSS
26.3 KB
HTML
4.1 KB
Green Hosting Verified
Cloudflare
GWF Verified
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
A

Security Score

81%Very Good
Static / Informational

HTTPS

WAF

78d

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

03.05.2026

Valid Until

01.08.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

sunplan-co.jp*.sunplan-co.jp

SHA-256 Fingerprint

8B:BC:17:16:E5:A6:10:8C:F9:3B:9F:1F:35:2D:EC:D4:83:9B:DE:15...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

alt-svc
h3=":443"; ma=86400
cf-cache-status
DYNAMIC
cf-ray🇮🇹 Milan
9fbb5efdfb7f4c60-MXP
content-encoding
zstd
content-type
text/html
date
Thu, 14 May 2026 16:45:03 GMT
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

MX Records (1)

jppro1.fcomet.com

Domain Information

sunplan-co.jp

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
61/100
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
77/100
Readability
/30
21/30

16px · LH 1.80

Hierarchy
/20
18/20

2.7x ratio · ✓ H1→H6

WCAG
/25
17/25

1:1 min contrast

Performance
/25
21/25

System fonts

Heading Font

-apple-system

Sans43px

Body Font

-apple-system

Sans16px

Contrast Ratio

1:1

11 issues

Reading Comfort

~48 CPL

Optimal (45–75)
43px
h1
32px
h2
16px
p

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

✅ Optimal line length: ~48 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 1.0:1).

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

✅ Strong hierarchy: Headlines are 2.7x larger than body text.

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

Color Palette

10 unique colors
9.44:1 AAA Light
#d3d5d4
Other· 19.8%
#2c2c2f
Text· 18.1%
#9aa3ac
Primary· 8.6%

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

9 Resources

5
Scripts
4
Styles
0
Async
0
Defer

Top Script Sources

js(4)unpkg.com(1)

Website Identity

株式会社サンプラン

株式会社サンプラン

Organization
0336503311

東小岩3-6-13, 江戸川区

133-0052, 江戸川区, 東京都

JP

Location detected: 🇯🇵 Japan, 江戸川区via schema_nap
ja

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Last analyzed: 14 May 2026 at 16:45

Historical Analysis & Change Tracking