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supergt.net

https://supergt.net· First analyzed 15 May 2026· Updated 15 May 2026
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supergt.net
Desktop screenshot of supergt.net
Mobile screenshot of supergt.net
Mobile

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Hosting Provider

infoSatsuma

IP Address

210.157.78.68

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS131965

Organization

infoSatsuma

Server

Nginx

Nameservers

ns020-sjplf9u01bo4gcl1.s.d-53.info.ns020-sjplf9u01bo4gcl1.s.d-53.jp.ns020-sjplf9u01bo4gcl1.s.d-53.org.

Performance

97

Core Web Vitals

Weight

First Contentful Paint
963 ms10%
Speed Index
1.3 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
15 MB
147 requests

Image Optimization

Lazy Load
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
WordPressv6.9.4
cms
SUPER GT 公式サイト専用デザインテーマCustom

Technology Stack

8 Technologies Detected

Analytics

2
Google Analytics
Google Analytics 4

Libraries

1
jQueryv3.7.1

UI Components

1
Slick Carousel

CSS Frameworks

1
Tailwind CSS

Payments

1
Square

Web Servers

1
Nginx

Plugins

1
Bogo

SEO Analysis

C60/100
18
8
1
Meta Tags9/15
Content9/12
Headings1/8
Technical17/25
E-E-A-T0/7
Images3/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
S
supergt.netsupergt.net

SUPER GT オフィシャルサイト

SUPER GTは、高性能なGTカーをベースとしたレーシングカーで争われる自動車レースのシリーズ戦。 1994年に「全日本GT選手権」としてスタートし、現在は「AUTOBACS SUPER GT（オートバックス・スーパージーティ）」の名称でエキサイティングなレース内容と高い観客動員を誇る国際シリーズとなっています。

Title Length18 chars

Recommended: 50-60 chars (~114px / 580px)

Description Length158 chars

Recommended: 120-160 chars

Issues (1)

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

9 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

17 URLs

17 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

7/100
Poor
2 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

D47/100
Bot Access
20/25
Machine Read.
17/25
Schema Data
0/25
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.txtinvalid
llms-full.txt
Semantic HTML
Heading Hierarchy
def. listsnavheader/footer
Text ratio:3%
Words:391
Token eff.:Optimal
Sections/1K:15.3
Depth:3/5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 1.8w
Canonical URL
Open Graph3/3
Twitter Card1/3
Language Tag
Publish Date
Author Info
Lists
Tables
TL;DR / Summary
About Page Link
Recommendations (11)
AI readiness recommendation preview...
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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.
A
84/100
14
Passed
2
Critical
1
Warnings
Images & Alt Text
20/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
17/20
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
11/15
Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).
ARIA & Roles
6/15
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.
16/100
F
1.90 g
CO₂e / view
15.0 MB
Page Weight
5%
Cleaner Than
New Visitor
2.17 g
vs
Returning (cached)
1.08 g
Annual (10K/mo)
227.7 kg
Emission Segments
Data Center
424 mg
Network
455 mg
Device
1.02 g
Resource Breakdown
JavaScript
56.8 KB
Images
14.8 MB
CSS
77.6 KB
HTML
15.1 KB
Green Hosting Not Verified
infoSatsuma
8 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
F

Security Score

0%Critical
Critical / Transactional

HTTPS

No WAF

36d

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

22.03.2026

Valid Until

20.06.2026

Subject Alternative Names (2)

supergt.netwww.supergt.net

SHA-256 Fingerprint

D7:A0:71:59:07:A6:DD:CE:D4:C8:5F:02:A0:FE:1C:67:EA:73:12:D4...

Top Recommendations

Security recommendation preview

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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 14:52:09 GMT
link
<https://supergt.net/wp-json/>; rel="https://api.w.org/"
server
nginx
vary
Accept-Encoding
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

20

SPF
DKIM
DMARC

MX Records (1)

mx.po.2iij.net

Domain Information

supergt.net

Domain Age
21y 5m

Created

25.11.2004

Expires

25.11.2029

Last Updated

23.04.2026

Registrar

Japan Registry Services Co., Ltd.

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
63/100
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
2 recommendations
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

Helvetica

WCAG AAA
54/100
Readability
/30
17/30

14px · LH 1.60

Hierarchy
/20
7/20

1x ratio

WCAG
/25
17/25

13.36:1 min contrast

Performance
/25
13/25

1 font · 1 req

Heading Font

Helvetica

Sans14px

Body Font

Helvetica

Sans14px

Contrast Ratio

13.36:1

WCAG AAA (≥7:1)

Reading Comfort

~43 CPL

Narrow lines
14px
h1
20px
h3
14px
p
Minor Second
Scale

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

✅ Optimal line spacing: 1.60 ratio (ideal range 1.4–1.6).

✅ WCAG AAA contrast: All text meets 7:1 ratio (min 13.4:1).

❌ Broken heading hierarchy: 3 level skip(s). Screen readers rely on sequential headings (h1→h2→h3).

⚠️ Weak hierarchy: Headlines should be ≥2x body size for clear visual structure.

❌ Pure vw font sizes: Viewport units alone break browser zoom (WCAG 1.4.4 fail). Use clamp(rem, vw, rem).

Buy on MyFonts

Color Palette

11 unique colors
15.36:1 AAA Light
#ffffff
Background· 25.599999999999998%
#252523
Other· 4.5%
#47462c
Primary· 22.1%
#0a0709
Secondary· 6.9%
#6a342f
Secondary· 2.4%

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

17 Resources

10
Scripts
7
Styles
2
Async
0
Defer

Top Script Sources

supergt.net(8)googletagmanager.com(2)

Website Identity

supergt.net

21 years old
Location detected: 🇯🇵 Japanvia ip
Japan Registry Services Co., Ltd.ja-JP

Sponsored

Last analyzed: 15 May 2026 at 14:52

Historical Analysis & Change Tracking