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php.co.jp

https://php.co.jp· First analyzed 29 Apr 2026· Updated 29 Apr 2026
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php.co.jp
Desktop screenshot of php.co.jp
Mobile screenshot of php.co.jp
Mobile

Sponsored

Hosting Provider

SAKURA

IP Address

153.120.24.123

Site Location

🇯🇵 Japanvia tld

Server Location

🇯🇵 Osaka, Japan

ASN

AS7684

Organization

SAKURA

Server

Apache

Nameservers

ns001-a60md1l33djmfgri.a.d-53.jp.ns001-a60md1l33djmfgri.a.d-53.net.ns001-a60md1l33djmfgri.a.d-53.info.

Performance

73

Core Web Vitals

Weight

First Contentful Paint
17.3 s10%
Speed Index
22.5 s10%
Largest Contentful Paint
—25%
Total Blocking Time
0.0 ms30%
Cumulative Layout Shift
0.00025%
1.2 MB
129 requests

Image Optimization

Lazy LoadWebPResponsive
0–49
50–89
90–100

Architecture Stack

Monolithic
⚙️ SSR
Infrastructure
Hosting
SAKURA

Technology Stack

9 Technologies Detected

Analytics

4
Google Analytics
Google Analytics 4
Facebook PixelMicrosoft Clarity

UI Components

1
Swiper

CSS Frameworks

1
Tailwind CSS

Tag Managers

1
Google Tag Manager

Advertising

1
Microsoft Advertising

Web Servers

1
Apache

SEO Analysis

D58/100
18
6
1
Meta Tags8/15
Content8/12
Headings3/8
Technical11/21
E-E-A-T0/7
Images7/7
Links5/5
URL5/5
Social4/5
Freshness0/4
Mobile4/4
Indexability3/3
P
php.co.jpphp.co.jp

PHP研究所「見方･考え方」イノベーションで社会を変える

PHP研究所の公式サイトです。「PHP」とは《Peace and Happiness through Prosperity＝繁栄によって平和と幸福を》という意味で、創設者・松下幸之助の願いがこめられています。

Title Length28 chars

Recommended: 50-60 chars (~173px / 580px)

Description Length104 chars

Recommended: 120-160 chars

Issues (1)

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

7 issues found

Upgrade to view details

Local SEO

Local Search Readiness

6/100
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

F38/100
Bot Access
20/25
Machine Read.
9/25
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
Text ratio:2%
Words:404
Token eff.:Optimal
Sections/1K:5

Structured Data

No Schema

Citation Readiness

Opening Summary
Descriptive Headingsavg 2.5w
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...
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.
C
69/100
10
Passed
4
Critical
2
Warnings
Images & Alt Text
15/20
Checks if images have descriptive alt text for screen readers and visually impaired users.
Semantic Structure
13/20
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
7/15
Checks correct use of WAI-ARIA attributes (roles, states, properties) for assistive technologies.
5 recommendations
  • •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.
34/100
C
149 mg
CO₂e / view
1.2 MB
Page Weight
70%
Cleaner Than
New Visitor
171 mg
vs
Returning (cached)
85 mg
Annual (10K/mo)
17.9 kg
Emission Segments
Data Center
33 mg
Network
36 mg
Device
80 mg
Resource Breakdown
JavaScript
313.3 KB
Images
557.5 KB
CSS
228.7 KB
HTML
108.5 KB
Green Hosting Not Verified
SAKURA
7 recommendations
  • •Carbon footprint recommendation preview...
Upgrade to view recommendations
D

Security Score

56%Poor
Interactive

HTTPS

No WAF

154d

Certificate Details

Type

Organization Validated (OV)

Certificate Authority

Cybertrust Japan Co., Ltd.

Key Algorithm

RSA (2048 bit)

Signature

SHA-256 with RSA

TLS Version

TLSv1.3

HTTP Protocol

HTTP/2

Valid From

22.04.2026

Valid Until

30.09.2026

OCSP Stapling

Enabled

Subject Alternative Names (2)

www.php.co.jpphp.co.jp

SHA-256 Fingerprint

79:01:96:54:4C:9D:71:90:57:E6:74:B3:E7:24:D7:58:CF:5D:45:E5...

Top Recommendations

Security recommendation preview

Upgrade to view recommendations
Upgrade to view header details

HTTP Headers

Developer Console

cache-control
🔴 No Cache(no-store, no-cache, must-revalidate)
content-type
text/html; charset=UTF-8
date
Wed, 29 Apr 2026 12:05:38 GMT
expires
Thu, 19 Nov 1981 08:52:00 GMT
pragma
no-cache
server
Apache
Good Warning Issue

Email Infrastructure

Custom Mail Server

Score

65

SPF
DKIM
DMARC

DMARC Policy

None (Monitor Only)

MX Records (1)

mx.securemx.jp

Domain Information

php.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
65/100
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
1 recommendation
  • •Mobile compatibility recommendation preview...
Upgrade to view recommendations

Typography & Readability

TsukuGoPro-B-HelveticaNowTextMedium + Noto Sans JP

WCAG Partial
62/100
Readability
/30
19/30

18px · LH 1.70

Hierarchy
/20
8/20
WCAG
/25
18/25

1.47:1 min contrast

Performance
/25
17/25

3 fonts

Heading Font

TsukuGoPro-B-HelveticaNowTextMedium

Sans

Body Font

Noto Sans JP

Sans18px

Contrast Ratio

1.47:1

1 issue

Reading Comfort

~34 CPL

Narrow lines
37px
h2
18px
p

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

❌ Very complex text: Flesch score 28/100. Consider shorter sentences and simpler words.

⚠️ Partial contrast: 1 elements below WCAG AA threshold (min 1.5:1).

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

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

Buy on MyFontsFlesch 28

Color Palette

1 unique colors
Light
#ffffff
Background· 100%

Business & Marketing Stack

5 Tools Detected

Enterprise

Behavior Analytics

3
Google Tag ManagerFree
Google AnalyticsFree
Microsoft ClarityFree

User behavior and product analytics

Advertising

2
Facebook PixelMid-Market
Microsoft AdsEnterprise

Ad platforms and retargeting pixels

2

Categories

5

Total Tools

1

Enterprise

1

Mid-Market

Assessment: Sophisticated marketing and sales technology infrastructure

Sponsored

Scripts & Styles

22 Resources

20
Scripts
2
Styles
12
Async
0
Defer

Top Script Sources

googletagmanager.com(3)local(3)s.yimg.jp(3)connect.facebook.net(2)bat.bing.com(2)

Website Identity

php.co.jp

Location detected: 🇯🇵 Japanvia tld
ja

Sponsored

Last analyzed: 29 Apr 2026 at 12:06

Historical Analysis & Change Tracking