idemitsu.com
出光興産
Last scanned Jul 26, 2026, 11:49 AM
Overall score
Fair
Summary
2050年カーボンニュートラル・循環型社会において、エネルギーとカーボンニュートラルソリューションのメインプレイヤーであることを目指す、出光興産のコーポ… This website is hosted on IIJ - Internet Initiative Japan Inc., JP. SEO is fair (60/100) and accessibility is excellent (90/100). Security scores excellent (90/100) and performance good (75/100). Top issue: Meta description longer than 160 characters.
2050年カーボンニュートラル・循環型社会において、エネルギーとカーボンニュートラルソリューションのメインプレイヤーであることを目指す、出光興産のコーポレートサイトです。
- Japan
- Hosted on IIJ - Internet Initiative Japan Inc., JP
Top issues to fix
7 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.
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.
No structured data (JSON-LD) found
SEOAdd JSON-LD (Organization, Article, Product…) to become eligible for rich results.
robots.txt not found
SEOPublish /robots.txt with a Sitemap: directive to guide crawlers.
+1 more issue — details in the sections below.
SEO
6 issue(s) found
Performance
311 ms
Security
HTTPS & header checks
Accessibility
1 issue(s) found
Organization
Company details published in this site's own structured data.
2050年カーボンニュートラル・循環型社会において、エネルギーとカーボンニュートラルソリューションのメインプレイヤーであることを目指す、出光興産のコーポレートサイトです。
Meta tags
- Title
- 出光興産
- Description
- 2050年カーボンニュートラル・循環型社会において、エネルギーとカーボンニュートラルソリューションのメインプレイヤーであることを目指す、出光興産のコーポレートサイトです。
- Canonical
- Language
- ja
- Charset
- utf-8
- Viewport
- width=device-width,initial-scale=1
- Robots meta
- Manifest
Technologies
Detected frameworks, languages, and tools.
No technologies detected.
Hosting & CDN
- Hosting provider
- IIJ - Internet Initiative Japan Inc., JP
- CDN provider
- CloudFront
- IP address
- 210.149.83.63
- ASN
- AS2497 (IIJ - Internet Initiative Japan Inc., JP)
DNS records
| Type | Value |
|---|---|
| A |
|
| AAAA | — |
| MX | — |
| TXT | — |
| NS | — |
| CAA | — |
| CNAME |
|
| IPv6 support | No |
TLS / SSL certificate
- Version
- TLS 1.3
- Issuer
- DigiCert Inc
- Subject
- *.idemitsu.com
- Valid from
- Feb 6, 2026
- Valid to
- Mar 8, 2027
- Days until expiry
- 223
- SAN domains
- *.idemitsu.com, idemitsu.com
Security headers
- Strict-Transport-SecurityEnabled
- Content-Security-PolicyMissing
- X-Frame-OptionsEnabled
- X-Content-Type-OptionsEnabled
- Referrer-PolicyMissing
- Permissions-PolicyMissing
Compression: gzip · 0 cookie(s) observed
Content & assets
Headings
H1 0 · H2 4 · H3 4
Links
34 internal · 5 external · 0 broken
Images
31 total · 0 missing alt
Scripts / Styles
8 scripts · 1 stylesheets
JS / CSS size
1.4 MB · 361 KB
Page size
53.1 KB
Robots.txt & Sitemap
- robots.txt
- Not found
- Disallow rules
- 0
- sitemap.xml
- Not found
- URLs in sitemap
- 0
SEO issues
- 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://idemitsu.com
- Final URL
- https://www.idemitsu.com/jp/index.html
- HTTP status
- 200
- HTTP version
- HTTP/1.1
- Response time
- 310 ms
- HTML size
- 53.1 KB
- Redirect chain
- https://idemitsu.com → https://www.idemitsu.com/jp/index.html
See something wrong on this report? Request a correction
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Frequently asked questions
- What technology does idemitsu.com use?
- We did not detect any specific technologies for idemitsu.com in the latest scan.
- Is idemitsu.com secure (HTTPS)?
- Yes. idemitsu.com uses TLS 1.3 with a certificate issued by DigiCert Inc, valid until Mar 8, 2027.
- Who hosts idemitsu.com?
- idemitsu.com is hosted on IIJ - Internet Initiative Japan Inc., JP, behind CloudFront CDN.
- What is idemitsu.com's SEO score?
- idemitsu.com scored 60/100 for SEO in the latest analysis (fair).
- What is idemitsu.com's overall website score?
- idemitsu.com has an overall SiteGraph score of 77/100, combining SEO, performance, security, and accessibility.
OpenGraph & Twitter Card
OpenGraph
Twitter Card