What technology does bigsight.jp use?

We did not detect any specific technologies for bigsight.jp in the latest scan.

Is bigsight.jp secure (HTTPS)?

Yes. bigsight.jp uses TLS 1.2 with a certificate issued by SECOM Trust Systems Co., Ltd., valid until Oct 16, 2026.

Who hosts bigsight.jp?

Hosting provider information for bigsight.jp is not available yet.

What is bigsight.jp's SEO score?

bigsight.jp scored 60/100 for SEO in the latest analysis (fair).

What is bigsight.jp's overall website score?

bigsight.jp has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.

bigsight.jp

東京ビッグサイト（東京国際展示場）

Last scanned Jul 26, 2026, 5:47 AM · 3 views

Overall score

Great

Summary

SEO is fair (60/100) and accessibility is excellent (100/100). Security scores excellent (100/100) and performance excellent (100/100). Top issue: Missing meta description.

Top issues to fix

7 issues found · 1 high priority

Missing meta description
SEO
Add a ~150-character meta description to control your search-result snippet and lift click-through rate.
Missing canonical link
SEO
Add <link rel="canonical"> so search engines know which URL variant to index.
No structured data (JSON-LD) found
SEO
Add JSON-LD (Organization, Article, Product…) to become eligible for rich results.
Missing OpenGraph tags
SEO
Add og:title/og:description/og:image so shared links render a proper preview card.
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.

+1 more issue — details in the sections below.

SEO

6 issue(s) found

100

Performance

358 ms

100

Security

HTTPS & header checks

100

Accessibility

0 issue(s) found

Not enough scan history yet to show a trend — check back after this site has been re-scanned a few more times.

Organization

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

X (Twitter)YouTube

Meta tags

Title: 東京ビッグサイト（東京国際展示場）
Description
Canonical
Language: ja
Charset: UTF-8
Viewport: width=device-width, initial-scale=1.0
Robots meta
Manifest

Technologies

Detected frameworks, languages, and tools.

No technologies detected.

Hosting & CDN

Hosting provider: —
CDN provider: Fastly
IP address: —
ASN: —

DNS records

Type	Value
A	—
AAAA	—
MX	—
TXT	—
NS	—
CAA	—
CNAME	—
IPv6 support	No

TLS / SSL certificate

Version: TLS 1.2
Issuer: SECOM Trust Systems Co., Ltd.
Subject: bigsight.jp
Valid from: Apr 2, 2026
Valid to: Oct 16, 2026
Days until expiry: 79
SAN domains: bigsight.jp, www.bigsight.jp

Security headers

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

Compression: none · 0 cookie(s) observed

Content & assets

Headings

H1 1 · H2 2 · H3 3

Links

37 internal · 10 external · 20 broken

Images

30 total · 0 missing alt

Scripts / Styles

5 scripts · 1 stylesheets

JS / CSS size

800 B · 0 B

Page size

17.8 KB

Robots.txt & Sitemap

robots.txt: Not found
Disallow rules: 0
sitemap.xml: Not found
URLs in sitemap: 0

SEO issues

Missing meta description
Missing canonical link
No structured data (JSON-LD) found
Missing OpenGraph tags
robots.txt not found
sitemap.xml not found

Scan details

Requested URL: https://bigsight.jp
Final URL: https://www.bigsight.jp/
HTTP status: 200
HTTP version: HTTP/2
Response time: 358 ms
HTML size: 17.8 KB
Redirect chain: https://bigsight.jp → https://www.bigsight.jp/

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Frequently asked questions

What technology does bigsight.jp use?: We did not detect any specific technologies for bigsight.jp in the latest scan.
Is bigsight.jp secure (HTTPS)?: Yes. bigsight.jp uses TLS 1.2 with a certificate issued by SECOM Trust Systems Co., Ltd., valid until Oct 16, 2026.
Who hosts bigsight.jp?: Hosting provider information for bigsight.jp is not available yet.
What is bigsight.jp's SEO score?: bigsight.jp scored 60/100 for SEO in the latest analysis (fair).
What is bigsight.jp's overall website score?: bigsight.jp has an overall SiteGraph score of 88/100, combining SEO, performance, security, and accessibility.