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convention.co.jp

JCS | JAPAN CONVENTION SERVICES, INC.

Last scanned Aug 5, 2026, 5:00 AM · 10 views

90

Overall score

Excellent

Summary

Japan Convention Services is the nation's largest and leading PCO, supporting international conferences and congresses as well as corporate incentives for over 50 years. This website uses Nginx. SEO is good (75/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (90/100). Top issue: Meta description longer than 160 characters.

Japan Convention Services is the nation's largest and leading PCO, supporting international conferences and congresses as well as corporate incentives for over 50 years.

Top issues to fix

6 issues found

  • 2 cookies without Secure/HttpOnly flags

    Security

    Set Secure and HttpOnly on session cookies so they can't leak over HTTP or be read by injected scripts.

  • Meta description longer than 160 characters

    SEO

    Trim the meta description to under 160 characters to avoid truncation in search results.

  • No structured data (JSON-LD) found

    SEO

    Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.

  • robots.txt not found

    SEO

    Publish /robots.txt with a Sitemap: directive to guide crawlers.

  • sitemap.xml not found

    SEO

    Publish an XML sitemap and reference it from robots.txt to speed up page discovery.

  • 12 broken links on the page

    SEO

    Fix or remove broken links — they waste crawl budget and erode user trust.

75

SEO

4 issue(s) found

90

Performance

1.30 s

100

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Score history

-1 overall since Jul 27, 2026

Overall
90
SEO
75
Security
100
Performance
90
Accessibility
100

Organization

Company details published in this site's own structured data.

Japan Convention Services is the nation's largest and leading PCO, supporting international conferences and congresses as well as corporate incentives for over 50 years.

YouTubeLinkedIn

Meta tags

Title
JCS | JAPAN CONVENTION SERVICES, INC.
Description
Japan Convention Services is the nation's largest and leading PCO, supporting international conferences and congresses as well as corporate incentives for over 50 years.
Canonical
https://www.convention.co.jp/en/
Language
en
Charset
UTF-8
Viewport
width=1160,user-scalable=yes
Robots meta
NOYDIR
Manifest

OpenGraph & Twitter Card

OpenGraph

og:title
JCS | JAPAN CONVENTION SERVICES, INC.
og:description
Japan Convention Services is the nation's largest and leading PCO, supporting international conferences and congresses as well as corporate incentives for over 50 years.
og:type
website
og:url
https://www.convention.co.jp/en/

Twitter Card

twitter:card
—
twitter:title
—
twitter:description
—

Technologies

Detected frameworks, languages, and tools.

jQueryGoogle AnalyticsGoogle AdsMeta PixelNginx

Hosting & CDN

Hosting provider
—
CDN provider
—
IP address
—
ASN
—

DNS records

TypeValue
A—
AAAA—
MX—
TXT—
NS—
CAA—
CNAME—
IPv6 supportNo

TLS / SSL certificate

Version
TLS 1.2
Issuer
GlobalSign nv-sa
Subject
www.convention.co.jp
Valid from
Jul 7, 2026
Valid to
Jan 22, 2027
Days until expiry
170
SAN domains
www.convention.co.jp, convention.co.jp

Security headers

  • Strict-Transport-SecurityEnabled
  • Content-Security-PolicyEnabled
  • X-Frame-OptionsEnabled
  • X-Content-Type-OptionsEnabled
  • Referrer-PolicyMissing
  • Permissions-PolicyMissing

Compression: none · 3 cookie(s) observed

Content & assets

Headings

H1 1 · H2 4 · H3 0

Links

42 internal · 3 external · 12 broken

Images

35 total · 0 missing alt

Scripts / Styles

34 scripts · 3 stylesheets

JS / CSS size

5.4 KB · 128 KB

Page size

180 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
  • No structured data (JSON-LD) found
  • robots.txt not found
  • sitemap.xml not found

Accessibility issues

No accessibility issues detected.

Scan details

Requested URL
https://convention.co.jp
Final URL
https://www.convention.co.jp/
HTTP status
200
HTTP version
HTTP/1.1
Response time
1.30 s
HTML size
180 KB
Redirect chain
https://convention.co.jp → https://www.convention.co.jp/

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Frequently asked questions

What technology does convention.co.jp use?
convention.co.jp is built with jQuery, Google Analytics, Google Ads, Meta Pixel, Nginx.
Is convention.co.jp secure (HTTPS)?
Yes. convention.co.jp uses TLS 1.2 with a certificate issued by GlobalSign nv-sa, valid until Jan 22, 2027.
Who hosts convention.co.jp?
Hosting provider information for convention.co.jp is not available yet.
What is convention.co.jp's SEO score?
convention.co.jp scored 75/100 for SEO in the latest analysis (fair).
What is convention.co.jp's overall website score?
convention.co.jp has an overall SiteGraph score of 90/100, combining SEO, performance, security, and accessibility.
Has convention.co.jp's score changed over time?
convention.co.jp's overall score has declined by 1 point (from 91 to 90) since Jul 27, 2026.