convention.co.jp

Scanned URL: https://convention.co.jp

📅 Scan completed: April 16, 2026 at 2:27 AM

52
/ 100
D
Below Avg
Overall Domain Score
SEO 77 · LLM 36 · Perf 36
77

🔍 SEO Score

10 / 13 checks passed

36

🤖 LLM Readiness

4 / 11 checks passed

36

⚡ Performance

4 / 11 checks passed

📝 Extracted Page Tags
Title Tag
JCS / 日本コンベンションサービス株式会社
Meta Description
JCS（日本コンベンションサービス）は、国際会議・学術集会・企業イベント等の企画運営の他、通訳・翻訳・人材サービス・まちづくり事業等を展開するMICE業界のパイオニア。年間13,000超の案件を担当しています。
H1 Heading
JCS 日本コンベンションサービス株式会社
Canonical URL
https://www.convention.co.jp/
🔍 SEO Audit
77/100
❌ Title Tag
Length: 23 chars (Ideal: 30-60).
✅ Meta Description
Length: 105 chars (Ideal: 50-160).
✅ H1 Tag
Found 1 H1 tags. Exactly 1 is recommended.
✅ Canonical URL
Canonical URL is set.
✅ Open Graph Tags
Found 6 OG properties (4+ recommended).
✅ Indexability
Page allows indexing.
✅ Mobile Viewport
Viewport meta tag present.
❌ Image Alt Text
26 of 31 images missing alt.
❌ Sitemap
No sitemap found in robots.txt.
✅ Heading Hierarchy
H1 and H2 structure detected.
✅ Internal Links
Found 103 internal links.
✅ HSTS Security
HSTS header present.
✅ HTTPS
Loads securely over HTTPS.
🤖 LLMO
36/100
❌ Structured Data (JSON-LD)
No JSON-LD found.
❌ Schema Entities
No schema entities.
❌ FAQ Schema
Missing FAQ schema.
✅ Contextual Summary
Description provides good AI context.
❌ E-E-A-T (Author)
No author meta or schema.
❌ Organisation Schema
Missing Organization schema.
❌ Breadcrumb Schema
Missing BreadcrumbList.
✅ AI Crawler Access
AI agents not blocked.
✅ Language Declaration
Language set to 'ja-JP'.
✅ Semantic Structure
Uses <main> or <article>.
❌ Entity Verification Links
No entity validation links.
⚡ Performance
36/100
Network Waterfall (Total: 4091ms)
  • DNS: 510ms
  • Connect: 748ms
  • TTFB: 1992ms
  • Download: 2099ms
❌ Time to First Byte (TTFB)
TTFB: 1992ms (Target: < 600ms).
❌ HTML Payload Size
Raw HTML: 163.7KB (Target: < 150KB).
❌ Text Compression
No Brotli/Gzip detected.
❌ Cache Policies
Missing Cache-Control headers.
❌ CDN Usage
No CDN headers found.
✅ Secure Delivery (HTTPS)
Served securely.
❌ Modern Protocol
Using HTTP/1.1.
✅ Native Lazy Loading
Images use loading='lazy'.
✅ Minified Assets
Minified .js/.css referenced.
❌ Preload / Preconnect Hints
Missing preload/preconnect hints.
✅ Character Set
UTF-8 declared.
🛡️ Security & Blacklist
Clean
✅ Domain is clean.
✅ Spamhaus DBLVerify ↗
Lookup inconclusive — use the Verify link to check manually.
✅ SURBLVerify ↗
Not listed — no threats detected.
✅ URIBLVerify ↗
Lookup inconclusive — use the Verify link to check manually.
✅ Google Safe BrowsingVerify ↗
No warnings found in Google Safe Browsing transparency report.
⚙️ Technologies
Analytics & Tracking
Google Tag Manager
JavaScript
jQuery
Infrastructure & CDN
Nginx
📋 WHOIS

WHOIS unavailable.

🔗 DNS Records
TypeValue
A54.238.22.1
MXconvention-co-jp.mail.protection.outlook.com
TXTapple-domain-verification=EJLm2tAuMtXHVeyy
TXTgoogle-site-verification=JFbW7sXBsCbtnIdoL83XpGSWtpuLq3yfA5tchd_I9gY
TXTamazonses:mmLP4pcsQuP9V6ycbNy9oDGbKsczEHUleMdjZ2evihg=
TXTv=spf1 include:spf.protection.outlook.com ip4:182.50.102.153 ip4:182.50.102.141 ip4:182.50.102.184 ip4:182.50.102.163 include:amazonses.com ip4:52.199.123.49 ip4:122.208.206.179 ip4:122.208.206.185 ip4:150.60.28.41 include:_spf.salesforce.com ip4:157.101.228.92 ip4:157.101.228.93 ip4:52.198.213.97 ip4:54.238.22.1 ip4:13.112.108.41 ip4:221.112.84.218 ip4:43.244.141.155 include:spf.mta.hdems.com ip4:54.178.175.192 ip4:122.103.252.219 ip4:203.223.24.241 ip4:203.223.24.242 ip4:182.50.102.189 ip4:182.50.102.148 ip4:182.50.102.180 include:_spf.willap.jp ip4:133.186.35.0/24 ip4:182.50.102.171 ip4:167.89.0.0/17 ip4:208.117.48.0/20 ip4:50.31.32.0/19 ip4:198.37.144.0/20 ip4:198.21.0.0/21 ip4:192.254.112.0/20 ip4:168.245.0.0/17 ip4:149.72.0.0/16 ip4:159.183.0.0/16 ip4:223.165.113.0/24 ip4:223.165.115.0/24 ip4:223.165.118.0/23 ip4:223.165.120.0/23 ip4:13.112.175.32 ip4:13.113.11.94 ip4:13.112.182.104 ip4:13.113.29.206 ip4:54.249.7.61 ip4:113.192.243.106 ip4:113.192.243.107 ip4:130.69.92.0/24 ip4:130.69.94.0/24 ip4:182.50.102.149 ip4:54.249.36.187 ip4:52.69.227.39 ip4:52.68.241.255 ip4:54.64.168.8 ip4:54.65.108.35 ip4:54.65.164.130 ip4:52.199.17.143 ip4:54.168.242.210 ip4:54.92.19.3 ip4:167.89.43.190 ip4:182.54.187.210 ip4:182.54.187.221 ip4:182.54.187.220 ip4:182.50.102.139 ip4:54.178.170.70 ip4:18.182.179.19 ip4:3.113.190.36 ip4:3.114.155.87 ip4:3.114.148.79 ip4:54.168.104.68 ip4:52.198.87.158 ip4:13.231.98.247 ip4:13.115.107.174 ip4:210.140.73.163 ip4:210.140.75.118 ip4:159.183.181.113 ip4:149.72.116.19 ip4:149.72.117.225 ip4:149.72.119.192 ip4:149.72.119.197 ip4:149.72.119.199 ip4:149.72.119.210 ip4:149.72.147.106 ip4:149.72.148.50 ip4:149.72.155.21 ip4:149.72.160.121 ip4:149.72.166.148 ip4:182.50.102.177 ip4:182.50.102.166 ip4:54.249.226.178 ip4:46.51.248.56 ip4:52.69.208.146 ip4:13.230.91.18 ip4:54.65.17.160 ip4:52.69.95.118 ip4:3.115.251.253 ip4:182.50.102.159 ip4:210.166.72.36 ip4:210.166.72.37 ip4:210.166.72.24 ip4:210.166.72.25 ~all
TXTasv=cfecafe9c573b713a6f2e51a62f4d636
NSjcs-ns.clara.co.jp
NSns.convention.co.jp

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