diltiazeminfo.com

https://diltiazeminfo.com· First analyzed 23 Apr 2026· Updated 23 Apr 2026

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diltiazeminfo.com

Mobile

Sponsored

Hosting Provider

BETINC

IP Address

162.43.117.109

Site Location

🇯🇵 Japanvia ip

Server Location

🇯🇵 Chiyoda City, Japan

ASN

AS131965

Organization

BETINC

Server

Nginx

Nameservers

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

Performance

Core Web Vitals

Weight

First Contentful Paint

1.2 s10%

Speed Index

1.6 s10%

Largest Contentful Paint

—25%

Total Blocking Time

0.0 ms30%

Cumulative Layout Shift

0.00025%

4.8 MB

36 requests

Image Optimization

Lazy Load

0–49

50–89

90–100

Architecture Stack

Monolithic

⚙️ SSR

WordPress

cms

Bloomv1.11Custom

by TCD

View Theme

Technology Stack

7 Technologies Detected

Libraries

jQueryv3.7.1

UI Components

Slick Carousel

CSS Frameworks

Tailwind CSS

Fonts

Adobe Fonts (Typekit)

Analytics

Google Analytics

Web Servers

Nginx

Customer Support

Zendesk

SEO Analysis

D59/100

Meta Tags11/15

Content6/12

Headings3/8

Technical19/25

E-E-A-T0/7

Images2/7

Links5/5

URL5/5

Social0/5

Freshness2/4

Mobile3/4

Indexability3/3

diltiazeminfo.comdiltiazeminfo.com

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今からでも間に合う、通わず高校卒業できる通信制高校サポート校

Title Length50 chars

Recommended: 50-60 chars (~310px / 580px)

Description Length30 chars

Recommended: 120-160 chars

Issues (2)

• Missing H1 tag — every page should have exactly one H1
• Most images missing alt text (31/35) — critical for accessibility and SEO

11 issues found

Upgrade to view details

Crawlability

Sitemap

Type: index

3 URLs

3 sub-sitemaps

robots.txt

4 rules

Sitemap reference found

Local SEO

Local Search Readiness

3/100

Poor

1 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

F36/100

Bot Access

20/25

Machine Read.

7/25

Schema Data

0/25

Citation

9/25

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:3%

Words:175

Token eff.:Too Short

Sections/1K:165.7

Depth:2/5

Structured Data

No Schema

Citation Readiness

Opening Summary

Descriptive Headingsavg 1w

Canonical URL

Open Graph0/3

Twitter Card0/3

Language Tag

Publish Date

Author Info

Lists

Tables

TL;DR / Summary

About Page Link

Recommendations (9)

AI readiness recommendation preview...

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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.

81/100

Passed

Critical

Warnings

Images & Alt Text

15/20

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

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

11/15

Ensures all interactive elements are reachable and operable via keyboard (tab, enter, escape).

ARIA & Roles

10/15

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

3 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.

23/100

604 mg

CO₂e / view

4.8 MB

Page Weight

15%

Cleaner Than

New Visitor

691 mg

Returning (cached)

345 mg

Annual (10K/mo)

72.5 kg

Emission Segments

Data Center

135 mg

Network

145 mg

Device

324 mg

Resource Breakdown

JavaScript

80.0 KB

Images

4.6 MB

CSS

48.8 KB

HTML

14.4 KB

Other

308 B

Green Hosting Not Verified

BETINC

7 recommendations

•Carbon footprint recommendation preview...

Upgrade to view recommendations

Security Score

21%Critical

Interactive

HTTPS

No WAF

50d

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

14.03.2026

Valid Until

12.06.2026

Subject Alternative Names (2)

diltiazeminfo.comwww.diltiazeminfo.com

SHA-256 Fingerprint

FE:40:EB:EF:A8:81:68:24:F6:49:B6:9C:92:E9:8D:55:8A:C4:9A:0D...

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

Thu, 23 Apr 2026 01:29:28 GMT

link

<https://diltiazeminfo.com/wp-json/>; rel="https://api.w.org...

server

nginx

vary

Accept-Encoding

Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

SPF

DKIM

DMARC

Domain Information

diltiazeminfo.com

Domain Age

11 months

Created

17.05.2025

Expires

17.05.2026

Last Updated

17.05.2025

Registrar

GMO Internet Group, Inc. d/b/a Onamae.com

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.

71/100

Mobile Friendly8 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

1 recommendation

•Mobile compatibility recommendation preview...

Upgrade to view recommendations

Typography & Readability

Segoe UI + Verdana

WCAG Partial

60/100

Readability

/30

16/30

14px · LH 2.00

Hierarchy

/20

6/20

1x ratio

WCAG

/25

17/25

2.85:1 min contrast

Performance

/25

21/25

System fonts

Heading Font

Segoe UI

Sans14px

Body Font

Verdana

Sans14px

Contrast Ratio

2.85:1

11 issues

Reading Comfort

~50 CPL

Optimal (45–75)

14px

22px

18px

14px

Minor Third

Scale

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

⚠️ Wide line spacing (2.00). 1.4–1.6 is optimal for body text.

✅ Optimal line length: ~50 chars/line (ideal 45–75 CPL).

⚠️ Partial contrast: 11 elements below WCAG AA threshold (min 2.9:1).

❌ Missing H1: Every page should have exactly one H1 element for SEO and accessibility.

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

AAdobe Fonts

Color Palette

10 unique colors

12.33:1 AAA Light

#ffffff

Background· 36.300000000000004%

#373434

Text· 9.3%

#5e8fb9

Primary· 14.5%

#6ea0cb

Secondary· 11.100000000000001%

#e3de9c

Accent· 10.600000000000001%

#2e6290

Accent· 5.7%

#a29e88

Secondary· 3.7%

#617482

Secondary· 3.1%

Business & Marketing Stack

1 Tools Detected

Growing

Behavior Analytics

Google AnalyticsFree

User behavior and product analytics

Sponsored

Scripts & Styles

12 Resources

Scripts

Styles

Async

Defer

Top Script Sources

diltiazeminfo.com(7)use.typekit.net(1)

Website Identity