instabase.jp

https://instabase.jp· First analyzed 20 May 2026· Updated 20 May 2026

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instabase.jp

Mobile

Sponsored

Hosting Provider

Amazon Web Services (AWS)

aws.amazon.com

IP Address

52.196.196.237

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Tokyo, Japan

ASN

AS16509

Organization

AWS EC2 (ap-northeast-1)

Server

Nginx

CDN

CloudFront

Nameservers

ns-1358.awsdns-41.org.ns-1627.awsdns-11.co.uk.ns-189.awsdns-23.com.ns-1005.awsdns-61.net.

Performance

Core Web Vitals

Weight

First Contentful Paint

858 ms10%

Speed Index

1.1 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

1.6 MB

187 requests

Image Optimization

WebPResponsive

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

Frontend

Styling

Tailwind CSS

CMS

HubSpot CMS

Infrastructure

Platform

AWS CloudFront

CDN

CloudFront

Technology Stack

14 Technologies Detected

Analytics

Google Analytics

Google Analytics 4

Facebook Pixel Microsoft Clarity Segment FullStory

Advertising

Google Ads LinkedIn Ads Microsoft Advertising

CSS Frameworks

Icon Libraries

Tag Managers

Marketing

Web Servers

SEO Analysis

C69/100

Meta Tags9/15

Content6/12

Headings8/8

Technical20/25

E-E-A-T2/7

Images2/7

Links5/5

URL5/5

Social5/5

Freshness0/4

Mobile4/4

Indexability3/3

instabase.jpinstabase.jp

レンタルスペースを探すならインスタベース

全国のレンタルスペースを簡単予約！おしゃれなパーティールームから駅近の格安な貸会議室まで、1時間から借りられます。場所、用途、部屋タイプ等から、目的にあった空間を見つけましょう。サービス手数料無料、ポイント還元で益々おトク。場所に困ったら、インスタベース

Title Length20 chars

Recommended: 50-60 chars (~124px / 580px)

Description Length127 chars

Recommended: 120-160 chars

Issues (1)

• Most images missing alt text (78/155) — critical for accessibility and SEO

4 issues found

Upgrade to view details

Crawlability

Sitemap

robots.txt

101 rules

Local SEO

Local Search Readiness

12/100

Poor

3 14

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

Sponsored

AI & LLM Readiness

D53/100

Bot Access

23/25

Machine Read.

13/25

Schema Data

7/25

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

nav

Text ratio:1%

Words:336

Token eff.:Optimal

Sections/1K:3

Depth:1/5

Structured Data

2 JSON-LD

Organization×1.1WebSiteSearchAction

sameAs entity links

Citation Readiness

Opening Summary

Descriptive Headingsavg 1w

Canonical URL

Open Graph3/3

Twitter Card3/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (8)

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.

73/100

Passed

Critical

Warnings

Images & Alt Text

13/20

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

10/15

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

8/15

Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.

4 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.

56/100

170 mg

CO₂e / view

1.6 MB

Page Weight

60%

Cleaner Than

New Visitor

194 mg

Returning (cached)

97 mg

Annual (10K/mo)

20.4 kg

Emission Segments

Data Center

8 mg

Network

50 mg

Device

112 mg

Resource Breakdown

JavaScript

1.1 MB

Images

467.6 KB

CSS

66.2 KB

HTML

31.1 KB

Other

4.6 KB

Green Hosting Verified

Amazon Web Services (AWS)

Provider Match

4 recommendations

•Carbon footprint recommendation preview...

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Security Score

25%Critical

Critical / Transactional

HTTPS

No WAF

139d

Certificate Details

Type

Domain Validated (DV)

Certificate Authority

Amazon

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

07.09.2025

Valid Until

06.10.2026

OCSP Stapling

Enabled

Subject Alternative Names (1)

*.instabase.jp

SHA-256 Fingerprint

90:42:5A:A1:3E:AB:A9:F1:A0:7F:01:CE:78:1C:9A:1B:89:2B:DF:23...

Top Recommendations

Security recommendation preview

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Upgrade to view header details

HTTP Headers

Developer Console

age

2513

cache-control

🟡 1 Hours(max-age=3600, public)

content-encoding

📦 Gzip(gzip)

content-type

text/html; charset=utf-8

date

Wed, 20 May 2026 11:09:53 GMT

etag

W/"00195e10fda19110c9f4c783bdf2cab1"

Good Warning Issue

Email Infrastructure

Google Workspace

Score

SPF

DKIM

DMARC

DMARC Policy

None (Monitor Only)

MX Records (5)

alt2.aspmx.l.google.com

alt1.aspmx.l.google.com

aspmx.l.google.com

aspmx3.googlemail.com

+1 more

Domain Information

instabase.jp

DNSSEC

Not Enabled

Privacy & Compliance

Cookiebot

Cookie Consent Banner

Cookiebot

GDPR Indicators

Cookie consent banner detected

CMP: Cookiebot

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.

72/100

Mobile Friendly11 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=1

3 recommendations

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Roboto

WCAG Partial

68/100

Readability

/30

16/30

14px · LH 1.71

Hierarchy

/20

11/20

1.14x ratio · ✓ H1→H6

WCAG

/25

19/25

1.88:1 min contrast

Performance

/25

22/25

System fonts

Heading Font

Roboto

Sans16px

Body Font

Roboto

Sans14px

Contrast Ratio

1.88:1

2 issues

Reading Comfort

~38 CPL

Narrow lines

16px

28px

24px

14px

Perfect Fourth

Scale

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

⚠️ Partial contrast: 2 elements below WCAG AA threshold (min 1.9:1).

✅ 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.

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

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

Color Palette

4 unique colors

Light

#ffffff

Background· 86.80000000000001%

#8297a1

Secondary· 3.3%

Business & Marketing Stack

8 Tools Detected

Enterprise

CRM Systems

HubSpotMid-Market

Customer Relationship Management platforms

Behavior Analytics

Google Tag ManagerFree

Google AnalyticsFree

Microsoft ClarityFree

User behavior and product analytics

Advertising

Facebook PixelMid-Market

LinkedIn AdsEnterprise

Microsoft AdsEnterprise

Ad platforms and retargeting pixels

Privacy & Cookies

CookiebotMid-Market

Cookie consent and privacy compliance tools

Sponsored

Scripts & Styles

23 Resources

Scripts

Styles

Async

Defer

Top Script Sources

googletagmanager.com(5)dmp.im-apps.net(2)clarity.ms(2)snap.licdn.com(2)connect.facebook.net(2)

Website Identity

インスタベース

Organization

www.instabase.jp/

Location detected: 🇯🇵 Japanvia tld

📧 Google Workspaceja

Social Profiles

Facebook X (Twitter)Instagram

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Last analyzed: 20 May 2026 at 11:52

Historical Analysis & Change Tracking