PR TIMES (prtimes.jp) operates as a leading press release distribution platform in Japan, serving as a central hub for media and corporate communications. With a Global SEODiff Score of 58 and an ACRI Grade of D, the site demonstrates moderate overall search visibility, falling below the benchmark for high-performing content platforms. While its Architecture Score of 77 and strong Semantic Structure (81) indicate a well-organized information architecture with effective content modeling, significant gaps in content integrity and performance limit its full potential. The site’s AI Readiness GEO score of 64 reflects strong alignment with AI-driven search expectations, particularly in content accessibility and structured data readiness.
The platform excels in technical foundations: it is built on Next.js, maintains open bot access (including GPTbot, Claudebot, and Google Extended), and features a declared sitemap with a low ghost ratio (5.0%). However, performance remains a critical weakness—TTFB of 1,698ms and 307.7KB HTML payload suggest substantial latency, compounded by a token bloat ratio of 27.7x and only 11,381 useful text bytes in a 315KB HTML file, indicating severe content dilution. While structured data is present (notably a Website schema), the absence of key blocks like Article, FAQ, or Breadcrumb reduces semantic richness. The content integrity score of 21 reveals a severe lack of original, high-value content, likely due to the site’s archival nature and reliance on third-party press releases.
Architecturally, the site shows strong internal linking (128 links) and solid security (HSTS enabled), but lacks a Content Security Policy (CSP), posing a minor risk. The Tranco Rank of 3,868 confirms its strong regional presence, though it underperforms in global visibility. To improve, PR TIMES should prioritize reducing HTML bloat, optimizing TTFB through server-side improvements, and enriching content with original analysis and semantic markup. With targeted enhancements, especially in content integrity and performance, the site could elevate its ACRI Score and achieve a higher AI Trust Score, unlocking greater visibility in AI-powered search ecosystems.
🧮 Score Transparency — How is this calculated?
📊 ACRI Sub-Scores (AI Readiness Detail)
prtimes.jp shows stronger AI visibility than traditional SEO ranking. Great AI foundation to build on. ACRI measures technical crawler readiness. Read the methodology →
Why prtimes.jp ranks here
Fastest improvements
- Reduce token bloat (navigation/footer/code) so agents reach your main content faster (see Token Bloat).
- Create an
llms.txtfile so AI crawlers can discover your content structure without heavy crawling. Generate llms.txt → - Run a full entropy audit to find which DOM regions waste the most tokens. Run Entropy Audit →
Traditional SEO
46/100 25 % of Global Score 🟢 High Confidence📝 Title Tag
Optimal range: 30–60 characters for SERP display.
📋 Meta Description
Optimal range: 120–160 characters for snippet control.
🔤 Heading Hierarchy
- ✓ Exactly 1 <h1> tag — found 1
- ✓ Has <h2> headings — found 9
- ✓ <h2> not before <h1>
🔍 Indexability
- ✓ Canonical tag present →
https://prtimes.jp/ - ✓ No noindex directive
- ✓ Meta viewport set
- ✓ HTML lang attribute →
ja-JP - ➖ Hreflang tags — N/A (single language site)
- ✓ Googlebot allowed by robots.txt
🌐 Social / OpenGraph
- ✓ og:title — PR TIMES｜プレスリリース・ニュースリリースNo.1配信サービス
- ✓ og:description — プレスリリースをPR TIMESで配信して、効果的なPRを実現。上場企業の63.9％(2,585社／4,045社)が利用する現在シェアNo.1のプレスリリース配信代行サービス。話題のベンチャー～グローバル企業のニュースリリースが集まる生活者も要注目のサイトです。プレスリリースの受信は無料です。
- ✓ og:image — preview
- ✓ twitter:card — summary_large_image
📐 How the SEO Pillar score is calculated
SEO Pillar = Title (20 pts) + Meta Desc (20 pts) + Heading Hierarchy (20 pts) + Indexability (20 pts) + Social/OG (20 pts)
Each sub-score is derived from the checks above. Canonical tag, lang attribute, og:image, and a single H1 are the highest-impact items.
AI Readiness / GEO
63/100 40 % of Global Score 🟢 High ConfidenceThis pillar aggregates citation share, hallucination risk, bot access, schema health, and content extractability. The individual diagnostic sections below contribute to this score.
Is AI lying about your brand? This panel measures how likely LLMs are to hallucinate facts when extracting information from your page.
🤖 Bot Access Matrix
📊 Structure & Information Density Docs
🏷️ Schema Health Docs
Schema Coverage Map
📐 AI Efficiency Metrics Docs
Token Bloat Research
Multimodal Readiness
TDM Rights
🔥 Structural Entropy Check Research
🔬 AI-Crawler Simulation
See your website the way AI crawlers do. CSS stripped, structure labeled, content chunked.
Toggle to "AI Agent View" to see what GPTBot, ClaudeBot, and other AI crawlers actually extract from this page.
AI Answer Preview
NEWSee how AI models summarize your site. Left: your actual content. Right: what the LLM extracts and says about you.
The LLM Interpretation
AI-VERIFIEDSEODiff AI analyzed the extracted content of prtimes.jp and produced this structured business intelligence. Fields marked SEMANTIC VOID indicate information the AI could not find — a critical gap in your site’s machine-readability.
🔧 Tech Stack
Performance & Speed
47/100 20 % of Global Score 🟢 High Confidence⏱️ Time to First Byte
Google considers <200 ms "good". AI crawlers may have even shorter timeouts.
📦 Page Weight
DOM nodes
HTML payload
🗄️ Cache & CDN
- ✓ Cache-Control header →
no-cache, max-age=0, must-revalidate - ✗ CDN cache status
- ✗ CDN detected
🔬 Tracker Tax
tracker scripts
third-party domains
token overhead
📐 How the Performance Pillar score is calculated
Perf Pillar = TTFB (35 pts) + Page Weight (25 pts) + Cache/CDN (20 pts) + Tracker Tax (20 pts)
TTFB <200 ms = full marks. DOM >3000 or payload >300 KB incurs heavy penalties. Tracker scripts beyond 5 reduce score.
Architecture & Trust
77/100 15 % of Global Score 🟢 High Confidence🗺️ Sitemap & Robots
- ✓ Sitemap declared in robots.txt →
https://prtimes.jp/sitemap.xml - ✓ Googlebot allowed
- ✓ GPTBot allowed
- ✓ ClaudeBot allowed
🔗 Linking
internal links
external links
🔒 Security & Trust
- ✓ HSTS header (Strict-Transport-Security)
- ✗ Content-Security-Policy header
- ✓ HTTP status 200 OK (got 200)
♿ Accessibility Signals
- ✓ HTML lang attribute → ja-JP
- ✓ Meta viewport for mobile
- ✓ Single H1 for screen readers
📐 How the Architecture Pillar score is calculated
Arch Pillar = Sitemap & Robots (30 pts) + Linking (25 pts) + Security (25 pts) + Accessibility (20 pts)
Having a valid sitemap, allowing AI bots, HSTS, and a good internal link count are the highest-impact items.
🏅 AI-Verified Trust Badge
Your site scores 53/100. Reach 80+ to unlock the green "AI-Verified" badge. Fix the issues below to improve your score.
<a href="https://seodiff.io/radar/domains/prtimes.jp" rel="noopener"><img src="https://seodiff.io/api/v1/badge?domain=prtimes.jp" alt="AI-Verified by SEODiff" width="280" height="52"></a>
💡 Paste in your site footer, GitHub README, or email signature. Badge updates automatically as your score changes.
� Deep Crawl Analysis 1009 pages · Deep-10
Poorly formatted tables or pricing grids on 106 pages will be split incorrectly during RAG chunking, causing AI models to hallucinate prices and features.
| Page | Type | ACRI | Token Bloat | Words | Status |
|---|---|---|---|---|---|
| other | 67 | 77.3× | 547 | ✓ | |
| other | 67 | 77.0× | 548 | ✓ | |
| other | 67 | 77.2× | 547 | ✓ | |
| other | 67 | 77.4× | 546 | ✓ | |
| other | 67 | 76.9× | 548 | ✓ | |
| other | 67 | 77.3× | 547 | ✓ | |
| other | 67 | 76.7× | 552 | ✓ | |
| other | 67 | 77.4× | 546 | ✓ | |
| other | 67 | 99.5× | 503 | ✓ | |
| other | 67 | 94.6× | 527 | ✓ | |
| pricing | 67 | 97.0× | 518 | 💰 Pricing | |
| other | 67 | 91.0× | 553 | ✓ | |
| other | 67 | 92.1× | 546 | ✓ | |
| other | 67 | 100.1× | 501 | ✓ | |
| other | 67 | 100.4× | 501 | ✓ | |
| other | 67 | 77.2× | 547 | ✓ | |
| other | 67 | 93.9× | 530 | ✓ | |
| other | 67 | 77.1× | 547 | ✓ | |
| other | 67 | 77.0× | 548 | ✓ | |
| other | 67 | 77.2× | 547 | ✓ |
| Path | Pages | Avg ACRI | Ghost % | Bloat | Top Issue |
|---|---|---|---|---|---|
| /main/ | 356 | 45 | 1% | 169.1× | Bot Blocked |
| /topics/ | 100 | 67 | 0% | 77.9× | High JS Bloat |
| /special/ | 27 | 44 | 0% | 153.7× | High JS Bloat |
| /story/ | 2 | 57 | 0% | 128.2× | High JS Bloat |
| /fashion/ | 1 | 67 | 0% | 91.0× | High JS Bloat |
| /gourmet/ | 1 | 57 | 0% | 105.7× | High JS Bloat |
| /service/ | 1 | 50 | 0% | 56.7× | High JS Bloat |
| /startup_free/ | 1 | 47 | 0% | 100.2× | High JS Bloat |
| /mobile/ | 1 | 67 | 0% | 97.0× | High JS Bloat |
| /monoshiri/ | 1 | 43 | 0% | 153.1× | High JS Bloat |
| /entertainment/ | 1 | 67 | 0% | 92.1× | High JS Bloat |
| /lifestyle/ | 1 | 67 | 0% | 100.4× | High JS Bloat |
| /technology/ | 1 | 67 | 0% | 94.6× | High JS Bloat |
| /business/ | 1 | 57 | 0% | 102.0× | High JS Bloat |
| /csr-pr/ | 1 | 60 | 0% | 69.4× | High JS Bloat |
Scores update automatically each month. Create a free account for on-demand re-crawls (3/month free).
🔌 API Access
Pull this data programmatically. All sub-page metrics are available via our public API.
curl https://seodiff.io/api/v1/deep10/domain/prtimes.jpGet your free API key — 100 requests/month included.
🔗 Similar infrastructure Sites
Domains with a similar tech stack, industry, and AI readiness profile to prtimes.jp. Compare side-by-side.
| Domain | ACRI | AI Score | Tech Stack | Token Bloat | Schema | |
|---|---|---|---|---|---|---|
| prtimes.jp (this site) | 53 | 80 | Next.js | 29.4× | 1 | — |
| thetrail.co | 78 | 89 | Next.js | 5.6× | 3 | Compare → |
| luksusbaby.dk | 78 | 89 | Next.js | 6.1× | 4 | Compare → |
| hijabistahub.com | 78 | 89 | Next.js | 5.3× | 4 | Compare → |
| wagashi-biz.jp | 78 | 84 | WordPress | 2.4× | 1 | Compare → |
| bb.ca | 78 | 87 | Shopify | 3.5× | 1 | Compare → |
📊 Semantic Share of Voice
How often would an AI cite prtimes.jp when users ask about topics in this domain's niche? We run entity queries through our 188k-page search index and measure citation probability.
Analyzing citation landscape…
Bait & Switch Delta
A 15 PAGESCompares your homepage rendering quality with inner pages. A high drift score means AI crawlers see a polished homepage but degraded inner content — the "bait & switch" that erodes trust.
Worst Inner Pages
E-E-A-T Trust Signals
D 35/100Trust indicators extracted from surface pages. These signals help AI systems verify your site's Experience, Expertise, Authoritativeness, and Trustworthiness.
Citation Profile
43 DOMAINSOutbound citation patterns across surface-crawled pages. Sites that cite diverse, authoritative sources signal higher E-E-A-T to AI systems.
instagram.com
AI trust scores for the domains prtimes.jp links to. Citing high-trust sources lifts your own credibility signal.
Remediation Patches
COPY-PASTEAuto-generated code fixes tailored to prtimes.jp. Copy and paste these into your codebase to improve AI visibility. These patches are mathematically proven to increase extraction accuracy →
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "Organization",
"name": "Prtimes",
"url": "https://prtimes.jp",
"logo": "https://prtimes.jp/common/v4.1/images/html/favicon/apple-touch-icon.png",
"sameAs": []
}
</script>
<!-- Move inline CSS to external stylesheets --> <link rel="stylesheet" href="/css/main.css"> <!-- Move inline scripts to external files with defer --> <script src="/js/app.js" defer></script> <!-- Remove duplicate navigation blocks --> <!-- Keep only ONE <nav> in the <header> --> <!-- Ensure <main> wraps your primary content --> <main> <!-- Your content here — this is what AI sees first --> </main>
<script type="application/ld+json">
{
"@context": "https://schema.org",
"@type": "FAQPage",
"mainEntity": [
{
"@type": "Question",
"name": "What is Prtimes?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Add your answer here — describe what Prtimes does in 1-2 sentences."
}
},
{
"@type": "Question",
"name": "How does Prtimes work?",
"acceptedAnswer": {
"@type": "Answer",
"text": "Explain the key features and how users interact with Prtimes."
}
}
]
}
</script>
Projected Impact
ROI EST.If you apply the patches above, here's the estimated improvement for prtimes.jp:
*Estimates based on SEODiff's scoring model. Actual results depend on implementation quality.
📋 Data Export
Download scores and metadata for audits, client reports, or CI/CD pipelines. Exports contain computed metrics only (no copyrighted content).
All data is generated automatically and updated with each crawl. JSON exports contain scores and metadata only (no copyrighted content).
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