php.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
Last scanned Jul 26, 2026, 4:17 PM · 5 views
Overall score
Great
Summary
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��… This website uses Apache hosted on SAKURA-A - SAKURA Internet Inc., JP. SEO is fair (55/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance excellent (100/100). Top issue: Title longer than 60 characters.
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。
- Japan
- Hosted on SAKURA-A - SAKURA Internet Inc., JP
Top issues to fix
9 issues found · 2 high priority
Missing Content-Security-Policy header
SecurityAdd a CSP to control which sources can run scripts — the strongest single defense against XSS.
No H1 heading found
SEOAdd exactly one H1 describing the page's main topic — it anchors the document outline for search engines and screen readers.
2 cookies without Secure/HttpOnly flags
SecuritySet Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.
Title longer than 60 characters
SEOShorten the title to under 60 characters so search results don't truncate it.
Meta description longer than 160 characters
SEOTrim the meta description to under 160 characters to avoid truncation in search results.
Missing canonical link
SEOAdd <link rel="canonical"> so search engines know which URL variant to index.
+3 more issues — details in the sections below.
SEO
7 issue(s) found
Performance
328 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
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。
Contact
Email, phone, and address published on this site's own pages.
Meta tags
- Title
- PHP研究所「見方･考え方」イノベーションで社会を変える
- Description
- 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。
- Canonical
- Language
- ja
- Charset
- utf-8
- Viewport
- width=device-width, initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
Hosting & CDN
- Hosting provider
- SAKURA-A - SAKURA Internet Inc., JP
- CDN provider
- —
- IP address
- 153.120.24.123
- ASN
- AS7684 (SAKURA-A - SAKURA Internet Inc., JP)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME | — |
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- Cybertrust Japan Co., Ltd.
- Subject
- www.php.co.jp
- Valid from
- Apr 22, 2026
- Valid to
- Sep 30, 2026
- Days until expiry
- 63
- SAN domains
- www.php.co.jp, php.co.jp
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: none · 6 cookie(s) observed
Content & assets
Headings
H1 0 · H2 6 · H3 0
Links
75 internal · 29 external · 0 broken
Images
99 total · 0 missing alt
Scripts / Styles
5 scripts · 2 stylesheets
JS / CSS size
149 KB · 59.1 KB
Page size
109 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- Title longer than 60 characters
- Meta description longer than 160 characters
- Missing canonical link
- No H1 heading found
- No structured data (JSON-LD) found
- robots.txt not found
- sitemap.xml not found
Accessibility issues
- No H1 heading found
Scan details
- Requested URL
- https://php.co.jp
- Final URL
- https://www.php.co.jp/
- HTTP status
- 200
- HTTP version
- HTTP/2
- Response time
- 326 ms
- HTML size
- 109 KB
- Redirect chain
- https://php.co.jp → https://www.php.co.jp/
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does php.co.jp use?
- php.co.jp is built with Apache.
- Is php.co.jp secure (HTTPS)?
- Yes. php.co.jp uses TLS 1.3 with a certificate issued by Cybertrust Japan Co., Ltd., valid until Sep 30, 2026.
- Who hosts php.co.jp?
- php.co.jp is hosted on SAKURA-A - SAKURA Internet Inc., JP.
- What is php.co.jp's SEO score?
- php.co.jp scored 55/100 for SEO in the latest analysis (fair).
- What is php.co.jp's overall website score?
- php.co.jp has an overall SiteGraph score of 82/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card