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air-dive.com

https://air-dive.com· First analyzed 15 May 2026· Updated 15 May 2026
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air-dive.com
Desktop screenshot of air-dive.com
Mobile screenshot of air-dive.com
Mobile

Sponsored

Hosting Provider

XSERVER Inc.

IP Address

85.131.209.51

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS131965

Organization

XSERVER Inc.

Server

Nginx

Nameservers

ns3.xserver.jp.ns5.xserver.jp.ns1.xserver.jp.ns4.xserver.jp.+1 more

Performance

99

Core Web Vitals

Weight

First Contentful Paint
713 ms10%
Speed Index
927 ms10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
156 KB
16 requests
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
XSERVER Inc.

Technology Stack

5 Technologies Detected

Libraries

1
jQueryv3.6.1

Other

1
GSAPv3.11.3

CSS Frameworks

1
Tailwind CSS

Fonts

1
Google Fonts

Web Servers

1
Nginx

SEO Analysis

D49/100
12
9
1
Meta Tags7/15
Content9/12
Headings3/8
Technical11/21
E-E-A-T0/7
Images2/7
Links2/5
URL5/5
Social3/5
Freshness0/4
Mobile4/4
Indexability3/3
A
air-dive.comair-dive.com

有限会社エアーダイブ｜air dive inc.

有限会社エアーダイブ｜air dive inc.の公式ウェブサイトです。WEB制作を始め、アプリ開発、イラスト、漫画広告など、あらゆるクリエイティブ制作をさせていただいております。

Title Length24 chars

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

Description Length90 chars

Recommended: 120-160 chars

Issues (1)

  • • Missing H1 tag — every page should have exactly one H1

10 issues found

Upgrade to view details

Local SEO

Local Search Readiness

8/100
Poor
2 13 2

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

Sponsored

AI & LLM Readiness

F35/100
Bot Access
20/25
Machine Read.
7/25
Schema Data
0/25
Citation
8/25

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
def. lists
Text ratio:4%
Words:208
Token eff.:Too Short
Sections/1K:24
Depth:1/5

Structured Data

No Schema

Citation Readiness

Opening Summary26w
Descriptive Headingsavg 1w
Canonical URL
Open Graph2/3
Twitter Card0/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (9)
AI readiness recommendation preview...
Upgrade to view recommendations

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.
B
78/100
10
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
18/20
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.
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.
58/100
A+
19 mg
CO₂e / view
156.3 KB
Page Weight
95%
Cleaner Than
New Visitor
22 mg
vs
Returning (cached)
11 mg
Annual (10K/mo)
2.3 kg
Emission Segments
Data Center
4 mg
Network
5 mg
Device
10 mg
Resource Breakdown
JavaScript
45.7 KB
Images
66.4 KB
CSS
8.3 KB
Fonts
30.1 KB
HTML
5.8 KB
Green Hosting Not Verified
XSERVER Inc.
5 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
B

Security Score

71%Good
Static / Informational

HTTPS

No WAF

53d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Let's Encrypt

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

09.04.2026

Valid Until

08.07.2026

Subject Alternative Names (2)

air-dive.comwww.air-dive.com

SHA-256 Fingerprint

D8:E4:25:11:01:4C:5A:4C:D8:FD:3F:F2:12:41:DE:2E:30:70:50:BF...

Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

content-encoding
⚡ Brotli(br)
content-type
text/html; charset=UTF-8
date
Fri, 15 May 2026 17:53:10 GMT
server
nginx
vary
Accept-Encoding
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

70

SPF
DKIM
DMARC

MX Records (1)

air-dive.com

Domain Information

air-dive.com

Domain Age
20 years

Created

21.04.2006

Expires

21.04.2027

Last Updated

15.08.2025

Registrar

XServer, Inc.

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
56/100
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
3 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Noto Sans JP

WCAG Partial
69/100
Readability
/30
20/30

18px · LH 2.20

Hierarchy
/20
12/20

1.42x ratio · ✓ H1→H6

WCAG
/25
17/25

1:1 min contrast

Performance
/25
20/25

1 font · 1 req

Heading Font

Noto Sans JP

Sans26px

Body Font

Noto Sans JP

Sans18px

Contrast Ratio

1:1

13 issues

Reading Comfort

~69 CPL

Optimal (45–75)
26px
h1
56px
h2
40px
h3
30px
h4
18px
p
Minor Third
Scale

✅ Excellent readability: 18px body text is ideal for all devices.

⚠️ Wide line spacing (2.20). 1.4–1.6 is optimal for body text.

✅ Optimal line length: ~69 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 13 elements below WCAG AA threshold (min 1.0:1).

✅ 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.

GGoogle Fonts

Color Palette

5 unique colors
Light
#ffffff
Background· 3%
#2a75ae
Primary· 95.9%
#8cb4ce
Secondary· 0.5%
#4180af
Secondary· 0.3%

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

Sponsored

Scripts & Styles

8 Resources

6
Scripts
2
Styles
0
Async
0
Defer

Top Script Sources

cdnjs.cloudflare.com(3)code.jquery.com(2)local(1)

Website Identity

air-dive.com

20 years old

〒064-0808札幌市中央区南8条西4丁目422番地5グランドパークビル3FTEL 011-533-3217　 FAX 011-533-3215

Location detected: 🇯🇵 Japanvia ip
XServer, Inc.ja

Sponsored

Last analyzed: 15 May 2026 at 17:53

Historical Analysis & Change Tracking