SEO Report: t-com.ne.jp
Generated 1 Méi 2026 · 42 findings · 5.4s
Institutional websites prioritize accessibility, security, and proper indexing — citizens and stakeholders need easy access to relevant information.
Score Breakdown
Average General score: 50
Score Projection
Estimated improvement based on the findings in this report
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Module Breakdown
All Findings (41)
Critical (4)
- highheaders
Missing strict-transport-security
HSTS header is missing. The site may be vulnerable to downgrade attacks.
Add Strict-Transport-Security header with max-age of at least 31536000
- highsitemap
Missing sitemap.xml
No sitemap.xml found at the root
Create a sitemap.xml to help search engines discover all pages
- highcontent
No H1 tag found
The page has no H1 heading
Add exactly one H1 tag with the primary keyword
- highaccessibility
2 form fields without labels
Form inputs without associated labels are inaccessible
Use <label for="id"> or aria-label on every form field
Medium (20)
- mediumcookies
2 cookies missing Secure flag
Cookies without Secure flag can be sent over unencrypted HTTP connections
Add the Secure attribute to all cookies to prevent transmission over HTTP
- mediumdns
No DKIM record found
None of the common DKIM selectors returned a valid key. Email authentication may be incomplete.
Configure DKIM signing with your email provider and publish the public key in DNS
- mediumheaders
Missing content-security-policy
CSP header is missing. The site may be vulnerable to XSS attacks.
Add a Content-Security-Policy header to restrict resource loading
- mediumheaders
Missing x-frame-options
X-Frame-Options is missing. The site may be vulnerable to clickjacking.
Add X-Frame-Options: DENY or SAMEORIGIN header
- mediummeta
Meta description too short
Description is 65 characters (recommended: 120-160)
Write a more detailed meta description
- mediummeta
Missing canonical URL
No canonical link tag found
Add a canonical URL to prevent duplicate content issues
- mediumstructured data
No structured data found
No JSON-LD schemas detected on the page
Add structured data (Organization, WebSite, BreadcrumbList) for rich search results
- mediumrobots
Missing robots.txt
robots.txt returned HTTP 404
Create a robots.txt file to guide search engine crawlers
- mediumtechnology
Render-blocking scripts
8 scripts load synchronously without async/defer
Add async or defer to non-critical scripts to improve page load speed
- mediumcontent
Thin content
Page has only 185 words (recommended: 300+)
Add more meaningful content — aim for at least 300 words on key pages
- mediumcontent
External links without noopener
4 external links with target="_blank" lack rel="noopener"
Add rel="noopener noreferrer" to all target="_blank" links
- mediumcontent
Low keyword relevance
Only 0% of title keywords appear in body text
Ensure the page content includes the keywords from the title
- mediumaccessibility
No skip navigation link
No skip-to-content link at the top of the page
Add a visually hidden skip link as the first focusable element
- mediumaccessibility
Positive tabindex values found
4 elements use tabindex > 0, which disrupts natural tab order
Use tabindex="0" or tabindex="-1" instead of positive values
- mediumrate limits
No rate limiting detected
10 rapid requests all succeeded without any rate-limit headers or 429 responses. The site may be vulnerable to abuse.
Implement rate limiting (e.g., 429 Too Many Requests) to protect against brute-force attacks
- mediumsocial checker
Missing Twitter Card
No twitter:card meta tag — Twitter/X will use default preview
Add twitter:card meta tag (e.g., "summary_large_image")
- mediumuptime checker
Inconsistent www handling
Both www and non-www versions respond with 200 — one should redirect to the other
Choose either www or non-www as canonical and redirect the other with a 301
- mediumbrand checker
No Organization schema
No Organization JSON-LD found
Add Organization structured data with name, logo, and contact information
- mediumcrawl budget
No sitemap.xml found
sitemap.xml returned HTTP 404
Create a sitemap.xml to help search engines discover all pages
- mediumindexing checker
Missing canonical URL
No canonical link tag found — search engines may index duplicate versions
Add a self-referencing canonical URL to prevent duplicate content issues
Low (17)
- lowcookies
1 cookie missing HttpOnly flag
Cookies without HttpOnly can be accessed by JavaScript, increasing XSS risk
Add HttpOnly to session and authentication cookies
- lowcookies
2 cookies missing SameSite attribute
Missing SameSite defaults to Lax in modern browsers but should be explicit
Set SameSite=Strict or SameSite=Lax on all cookies
- lowdns
Only one MX record (no redundancy)
A single MX record means no failover if the mail server goes down.
Add a secondary MX record for email redundancy
- lowheaders
Missing referrer-policy
Referrer-Policy is not set. Full URLs may leak to third parties.
Add Referrer-Policy: strict-origin-when-cross-origin
- lowheaders
Missing permissions-policy
Permissions-Policy is missing.
Add Permissions-Policy to restrict browser feature access
- lowheaders
Server header exposes software
Server: Apache
Remove or obfuscate the Server header to reduce information leakage
- lowheaders
Missing Cache-Control header
No Cache-Control header — browser caching is undefined
Add Cache-Control with appropriate max-age for static and dynamic resources
- lowheaders
Content-Type missing charset
Content-Type header does not specify charset
Add charset=utf-8 to Content-Type header
- lowmeta
Missing Twitter Card
No twitter:card meta tag
Add twitter:card meta tag for Twitter sharing
- lowcontent
Lazy images without dimensions
31 lazy-loaded images lack width/height — causes layout shift
Add width and height attributes to lazy-loaded images
- lowaccessibility
Missing navigation landmark
No <nav> element or role="navigation" found
Wrap navigation links in a <nav> element
- lowrate limits
No WAF detected
No Web Application Firewall (Cloudflare, AWS, Akamai, Vercel, Sucuri, Fastly) was detected in response headers.
Consider using a WAF to protect against common web attacks (XSS, SQL injection, DDoS)
- lowrate limits
No bot protection detected
No CAPTCHA, challenge page, or bot detection was triggered during rapid requests.
Consider implementing bot protection (e.g., Cloudflare Turnstile, hCaptcha) for sensitive endpoints
- lowbrand checker
No WebSite schema
No WebSite JSON-LD found
Add WebSite structured data for sitelinks search box in Google
- lowbrand checker
No web app manifest
No manifest.json linked — PWA features unavailable
Add a web app manifest for installability and brand customization
- lowcrawl budget
No robots.txt found
No robots.txt file — no crawl directives
Add a robots.txt file with sitemap reference and crawl directives
- lowpage experience
Popup elements detected
Found 1 popup/overlay element(s) — likely consent banners
Ensure popups don't cover main content excessively, especially on mobile
AI Fix Prompt
Copy this prompt into ChatGPT or Claude to get step-by-step fix instructions
Fix all SEO issues found in the audit of t-com.ne.jp.
Prioritize high-severity issues first, then medium. For each fix, make the actual code change — don't just describe what to do.
```json
{
"domain": "t-com.ne.jp",
"scores": {
"overall": 70,
"performance": 0,
"seo": 63,
"accessibility": 66,
"bestPractices": 93,
"security": 71
},
"findings": [
{
"module": "cookies",
"severity": "medium",
"title": "2 cookies missing Secure flag",
"description": "Cookies without Secure flag can be sent over unencrypted HTTP connections",
"recommendation": "Add the Secure attribute to all cookies to prevent transmission over HTTP"
},
{
"module": "dns",
"severity": "medium",
"title": "No DKIM record found",
"description": "None of the common DKIM selectors returned a valid key. Email authentication may be incomplete.",
"recommendation": "Configure DKIM signing with your email provider and publish the public key in DNS"
},
{
"module": "headers",
"severity": "high",
"title": "Missing strict-transport-security",
"description": "HSTS header is missing. The site may be vulnerable to downgrade attacks.",
"recommendation": "Add Strict-Transport-Security header with max-age of at least 31536000"
},
{
"module": "headers",
"severity": "medium",
"title": "Missing content-security-policy",
"description": "CSP header is missing. The site may be vulnerable to XSS attacks.",
"recommendation": "Add a Content-Security-Policy header to restrict resource loading"
},
{
"module": "headers",
"severity": "medium",
"title": "Missing x-frame-options",
"description": "X-Frame-Options is missing. The site may be vulnerable to clickjacking.",
"recommendation": "Add X-Frame-Options: DENY or SAMEORIGIN header"
},
{
"module": "meta",
"severity": "medium",
"title": "Meta description too short",
"description": "Description is 65 characters (recommended: 120-160)",
"recommendation": "Write a more detailed meta description"
},
{
"module": "meta",
"severity": "medium",
"title": "Missing canonical URL",
"description": "No canonical link tag found",
"recommendation": "Add a canonical URL to prevent duplicate content issues"
},
{
"module": "structured-data",
"severity": "medium",
"title": "No structured data found",
"description": "No JSON-LD schemas detected on the page",
"recommendation": "Add structured data (Organization, WebSite, BreadcrumbList) for rich search results"
},
{
"module": "robots",
"severity": "medium",
"title": "Missing robots.txt",
"description": "robots.txt returned HTTP 404",
"recommendation": "Create a robots.txt file to guide search engine crawlers"
},
{
"module": "sitemap",
"severity": "high",
"title": "Missing sitemap.xml",
"description": "No sitemap.xml found at the root",
"recommendation": "Create a sitemap.xml to help search engines discover all pages"
},
{
"module": "technology",
"severity": "medium",
"title": "Render-blocking scripts",
"description": "8 scripts load synchronously without async/defer",
"recommendation": "Add async or defer to non-critical scripts to improve page load speed"
},
{
"module": "content",
"severity": "high",
"title": "No H1 tag found",
"description": "The page has no H1 heading",
"recommendation": "Add exactly one H1 tag with the primary keyword"
},
{
"module": "content",
"severity": "medium",
"title": "Thin content",
"description": "Page has only 185 words (recommended: 300+)",
"recommendation": "Add more meaningful content — aim for at least 300 words on key pages"
},
{
"module": "content",
"severity": "medium",
"title": "External links without noopener",
"description": "4 external links with target=\"_blank\" lack rel=\"noopener\"",
"recommendation": "Add rel=\"noopener noreferrer\" to all target=\"_blank\" links"
},
{
"module": "content",
"severity": "medium",
"title": "Low keyword relevance",
"description": "Only 0% of title keywords appear in body text",
"recommendation": "Ensure the page content includes the keywords from the title"
},
{
"module": "accessibility",
"severity": "high",
"title": "2 form fields without labels",
"description": "Form inputs without associated labels are inaccessible",
"recommendation": "Use <label for=\"id\"> or aria-label on every form field"
},
{
"module": "accessibility",
"severity": "medium",
"title": "No skip navigation link",
"description": "No skip-to-content link at the top of the page",
"recommendation": "Add a visually hidden skip link as the first focusable element"
},
{
"module": "accessibility",
"severity": "medium",
"title": "Positive tabindex values found",
"description": "4 elements use tabindex > 0, which disrupts natural tab order",
"recommendation": "Use tabindex=\"0\" or tabindex=\"-1\" instead of positive values"
},
{
"module": "rate-limits",
"severity": "medium",
"title": "No rate limiting detected",
"description": "10 rapid requests all succeeded without any rate-limit headers or 429 responses. The site may be vulnerable to abuse.",
"recommendation": "Implement rate limiting (e.g., 429 Too Many Requests) to protect against brute-force attacks"
},
{
"module": "social-checker",
"severity": "medium",
"title": "Missing Twitter Card",
"description": "No twitter:card meta tag — Twitter/X will use default preview",
"recommendation": "Add twitter:card meta tag (e.g., \"summary_large_image\")"
},
{
"module": "uptime-checker",
"severity": "medium",
"title": "Inconsistent www handling",
"description": "Both www and non-www versions respond with 200 — one should redirect to the other",
"recommendation": "Choose either www or non-www as canonical and redirect the other with a 301"
},
{
"module": "brand-checker",
"severity": "medium",
"title": "No Organization schema",
"description": "No Organization JSON-LD found",
"recommendation": "Add Organization structured data with name, logo, and contact information"
},
{
"module": "crawl-budget",
"severity": "medium",
"title": "No sitemap.xml found",
"description": "sitemap.xml returned HTTP 404",
"recommendation": "Create a sitemap.xml to help search engines discover all pages"
},
{
"module": "indexing-checker",
"severity": "medium",
"title": "Missing canonical URL",
"description": "No canonical link tag found — search engines may index duplicate versions",
"recommendation": "Add a self-referencing canonical URL to prevent duplicate content issues"
}
]
}
```Recommendations for your industry
- 1Ensure WCAG 2.1 AA compliance
- 2Implement all recommended security headers
- 3Ensure sitemap covers all important pages
- 4Optimize page load time to under 2 seconds
- 5Ensure responsive design on all pages
SEO Checklist for General
Tips for Mixed websites
- →Define clear landing pages for each segment
- →Use different meta strategies per page group
- →Segment sitemap by content type