日本相撲協会公式サイト
sumo.or.jp
In its own words日本相撲協会公式サイト入場券や相撲観戦の情報も充実。番付の即日発表や相撲歴史文化等、最新情報提供中。
sumo
日本相撲協会公式サイト (sumo.or.jp) is ranked in the top 10,000 sites and was registered in 1996. It is built with jQuery; we found no traces of an AI site builder.
Popularity
Website Traffic CheckerAmong the top 10K sites.
A popularity band, not a visit count.
Top 1KTop 10KTop 100KTop 1MOutside top 1M
Tranco: #15,192 · Chrome UX Report: Top 5,000 · Majestic Million: #29,422
Each list, with its date
| Source | Says | As of |
|---|---|---|
| TrancoA research ranking that combines several traffic and link sources, published daily. | #15,192 | list of 27 Oct 2026 |
| Chrome UX ReportRank buckets from Google’s real Chrome traffic, published monthly. | Top 5,000 | Sep 2026 |
| Majestic MillionRanks sites by how many separate networks link to them (links, not visits), published daily. CC BY 3.0 | #29,422 | list of 28 Oct 2026 |
Technology
Tech Stack CheckerBuilt with jQuery and Slick.
jQueryJavaScript libraryShow evidenceHide evidence
Evidence · page source, line 23Popular sites using jQuery Is this wrong? Report it<script src="//ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js">
SlickJavaScript libraryShow evidenceHide evidence
Evidence · page source, line 2660Popular sites using Slick Is this wrong? Report it<script src="/js/vendor/slick.min.js">
Everything else it uses (7)
Around it: CDN, Email, SEO, Video and more.
cdnjsCDNShow evidenceHide evidence
Evidence · page source, line 2661Popular sites using cdnjs Is this wrong? Report it<script src="//cdnjs.cloudflare.com/ajax/libs/object-fit-images/3.2.4/ofi.min.js">
Google Hosted LibrariesCDNShow evidenceHide evidence
Evidence · page source, line 23Popular sites using Google Hosted Libraries Is this wrong? Report it<script src="//ajax.googleapis.com/ajax/libs/jquery/3.6.0/jquery.min.js">
CloudflareCDNShow evidenceHide evidence
Evidence · response headerPopular sites using Cloudflare Is this wrong? Report itcf-ray: a5246447da6da662-MIA
SendGridEmailShow evidenceHide evidence
Evidence · DNS recordPopular sites using SendGrid Is this wrong? Report it…95.32.38/32 +ip4:150.95.47.157/32 +ip4:150.95.34.55/32 include:spf.alpha-prm.jp include:sendgrid.net ~all
Google Search ConsoleSEOShow evidenceHide evidence
Evidence · DNS recordPopular sites using Google Search Console Is this wrong? Report itsumo.or.jp TXT google-site-verification=Qn6QyWGSpdos_QsgT4maikRzCDLqQ5Pmw6MJlj-mJDY
YouTubeVideoShow evidenceHide evidence
Evidence · page source, line 2124Popular sites using YouTube Is this wrong? Report it<iframe src="https://www.youtube.com/embed/c332XLW1Grg" frameborder="0" allow="acc…
Google FontsFontsShow evidenceHide evidence
Evidence · page source, line 18Popular sites using Google Fonts Is this wrong? Report it<link rel="stylesheet" href="//fonts.googleapis.com/css2?family=Noto+Sans+JP:wght@400;700&display=swap">
Trust signals
Website Trust Checker2 of 7 trust signals found on the home page.
Signals, not a judgement: missing details are common on small, honest sites.
- Domain registered4 Jul 1996, 30 years agoNoted
- HTTPSLoads over HTTPS with a valid certificateFound
- Contact detailsNo email or phone on the home pageNot found
- Privacy policyLinked from the home page, and the page opensFound
- TermsNot linked on its own; a legal page is linked, which may hold itPartly
- Security filterNot blocked by Cloudflare’s security filter and Quad9’s security filterNoted
Every signal we looked at
On the site
- Contact pageLinked from the home page, and the page opensFound
- About pageNo link found on the home pageNot found
- Privacy policyLinked from the home page, and the page opensFound
- TermsNot linked on its own; a legal page is linked, which may hold itPartly
- Refund or returns policyNo link found on the home pageNot found
- Contact detailsNo email or phone on the home pageNot found
- Company detailsNo company name or address foundNot found
- Payment providersNone on the home pageNoted
- TrackersNone found on the home pageNoted
Behind the site
- Security filterNot blocked by Cloudflare’s security filter and Quad9’s security filterNotedCloudflare’s security filter and Quad9’s security filter
- Domain registered4 Jul 1996, 30 years agoNotedWHOIS (whois.jprs.jp)
- HTTPSLoads over HTTPS with a valid certificateFound
- Protective settingsNone in placeNot found
- Email protectionPartly protected against forged emailPartlyDNS records
A second opinion on its security setup: Mozilla’s HTTP Observatory grades the site when you open it. Ten checks before you buy · A signal looks wrong? Report it
What it is
Website SummaryIt calls itself “日本相撲協会公式サイト”.
In its own words日本相撲協会公式サイト入場券や相撲観戦の情報も充実。番付の即日発表や相撲歴史文化等、最新情報提供中。
The page doesn’t show enough to say what kind of site it is (a shop, a blog, an app…).
Who is behind it
- copyright lineNIHON SUMO KYOKAI
- WikidataJapan Sumo Association
Wikidata: Based in Yokoami, Japan.
Its YouTube, X, Instagram and TikTok accounts are the ones Wikidata lists.
Show evidence (2)Hide evidence
Exhibit 1 · page source, line 2657
COPYRIGHT © NIHON SUMO KYOKAI ALL RIGHTS RESERVED.
Exhibit 2 · Wikidata
Is this wrong? Report itQ1426308: Japan Sumo Association
Each name is quoted from its source. A brand and the company that owns it often go by different names.
More about it: Wikidata, profiles, AI use, page facts
In Wikidata
- Japan Sumo Association: organization · sports governing body, public interest incorporated foundation · since 1925
Wikidata, the free knowledge base behind Wikipedia, lists this domain as the official website of this item. Volunteers write it; each item shows its sources.
Find them on
The profiles its home page links. We haven’t checked who runs them.
- Site name
- 日本相撲協会公式サイト
- Language
- Japanese (ja)
- What it tells search engines
- None
Read from what the page says about itself; we haven’t checked whether it’s true.
Built with AI?
AI Website DetectorNo AI builder traces found.
Coding tools such as Cursor leave no traces, so this doesn’t mean a person made it.
AI traces: None found
How we know
AI site builders leave traces in the sites they make. We look for the traces of 53 of them and show every match with the line it came from, so you can check it yourself.
We test this on 2,275 sites whose makers we know, and publish what we get wrong.
How we test it · Every builder we know · How to tell if a site was built with AI
AI access
AI Crawler CheckerAI can find it and read it: it scores 60 of 100.
It lets every AI crawler in: the site’s choice, never scored.
AI readiness
Readable
Its words are in the HTML, with a title and a description.
- Findable
- Readable
- 3AI-friendly
- 4Agent-ready
To reach AI-friendly:Structured data +12Sitemap +10
Can AI find it?
20/32- Search listing
- Sitemap
- robots.txt
- Links for AI tools
Can AI read it?
40/58- Text without scripts
- Title and description
- Structured data
- llms.txt
- Markdown copy
Can agents use it?
0/10Optional: for sites with an API or a sign-in.
Below the median of the 2,439 most visited sites we read, which is 72.
Checked 29 Oct 2026
What to fix
2 fixes, up to +22 points- +12points
Structured data
Add schema.org structured data, as JSON-LD, to the home page’s HTML.
Details
We found: None found.
Why it matters: Structured data tells AI tools and search engines what the site is: a company, a shop, a product.
Prompt for your coding assistant (Claude Code, Cursor, your builder’s chat)Add schema.org structured data to the home page of https://sumo.or.jp as JSON-LD, in a <script type="application/ld+json"> tag in its HTML: an Organization with its name, url, logo and sameAs links to its official profiles, and a WebSite with its name and url. Add the type that fits what the site offers too, such as Product, Article or LocalBusiness. Use only facts that are true of the site.
- +10points
Sitemap
Publish an XML sitemap and list it in robots.txt.
Details
We found: None found.
Why it matters: A sitemap lists every page, so crawlers find the ones no link leads to.
Prompt for your coding assistant (Claude Code, Cursor, your builder’s chat)Add an XML sitemap at https://sumo.or.jp/sitemap.xml that lists the site’s public pages, in the sitemaps.org format, and add the line "Sitemap: https://sumo.or.jp/sitemap.xml" to https://sumo.or.jp/robots.txt. Generate it from the site’s routes, so new pages are added to it.
Optional: 4 fixes few sites have yetup to +18 points
- +10optional
Files for AI agents
If agents could use the site, publish what they need where they look.
Details
We found: None of the 8 we look for.
Why it matters: Agents act for people: they look for these files to know what a site lets them do. Worth it only if agents can use the site.
Prompt for your coding assistant (Claude Code, Cursor, your builder’s chat)If AI agents could use https://sumo.or.jp for its visitors (to search it, book, buy or sign in), publish what they need at the standard addresses, and only what the site really offers: an MCP server card at /.well-known/mcp/server-card.json if it runs an MCP server, an API catalog at /.well-known/api-catalog (RFC 9727) listing its public APIs, and OAuth protected resource metadata at /.well-known/oauth-protected-resource (RFC 9728) if agents sign in.
- +4optional
llms.txt
Publish a short Markdown summary of the site at /llms.txt.
Details
We found: None found.
Why it matters: A short summary for AI models, at an address they can find. A proposal: few AI companies say they read it yet.
Prompt for your coding assistant (Claude Code, Cursor, your builder’s chat)Create https://sumo.or.jp/llms.txt as llmstxt.org describes it: a Markdown file with an H1 naming the site, a one-paragraph summary in a blockquote, and short sections listing its most useful pages as links, each with a line on what it holds. Serve it as text/plain or text/markdown.
- +2optional
Links for AI tools
Point AI tools to the site’s files in the home page’s Link header.
Details
We found: None in the home page’s headers.
Why it matters: A Link header points AI tools to a site’s files from any page, without guessing addresses.
Prompt for your coding assistant (Claude Code, Cursor, your builder’s chat)Make the home page of https://sumo.or.jp send a Link header (RFC 8288) that points AI tools to the site’s files, for example: Link: </sitemap.xml>; rel="sitemap", </llms.txt>; rel="describedby"; type="text/plain". List only files the site serves.
- +2optional
Markdown copy
Answer requests for Markdown with a Markdown version of the page.
Details
We found: Not offered: it sends the page’s HTML.
Why it matters: A Markdown copy gives AI tools the page’s words without the HTML around them.
Prompt for your coding assistant (Claude Code, Cursor, your builder’s chat)When a request to https://sumo.or.jp asks for Markdown (its Accept header includes text/markdown), answer with a Markdown version of the page’s main content and the header Content-Type: text/markdown. Requests for HTML keep getting HTML; add Vary: Accept so caches keep the two apart.
Every check, with its evidence
Can AI find it?
- robots.txtNone, so every crawler may read every pageNot found
- SitemapNone foundNot found
- Links for AI toolsNone in the home page’s headersNot found
- Search listingAllowed: no noindex ruleAllowed
Can AI read it?
- Text without scripts7,698 characters before scripts runFound
Show evidenceHide evidence
Exhibit 1 · page text, before scripts runIs this wrong? Report it日本相撲協会公式サイト トップページ 入場券情報 入場券情報 一月場所（東京） 三月場所（大阪） 五月場所（東京） 七月場所（名古屋） 九月場所（東京） 十一月場所（福岡） 本場所の年間日程表 団体受付のご案内 オフィシャルホテル 観戦案内 観戦案内 東京 大阪 名古屋 福岡 自宅で楽しむ 力士情報・成績 十一月場所情報 取組結果 星取表 休場力士情報 優勝力士・三賞力士 優勝三賞インタビュー…
- Markdown copyNot offered: it sends the page’s HTMLNot found
- llms.txtNone foundNot found
- Title and descriptionBothFound
Show evidence (2)Hide evidence
Exhibit 1 · page source, line 7<title>日本相撲協会公式サイト</title>
Exhibit 2 · page source, line 9Is this wrong? Report it<meta name="description" content="入場券や相撲観戦の情報も充実。番付の即日発表や相撲歴史文化等、最新情報提供中。">
- Structured dataNone foundNot found
Can agents use it?
- API catalogNone foundNot found
- Sign-in for AI agentsNone foundNot found
- Auth.mdNone foundNot found
- AI catalogNone foundNot found
- MCP serverNone foundNot found
- Agent cardNone foundNot found
- Agent SkillsNone foundNot found
- Agents in DNSNone foundNot found
What it lets AI do
Not scoredKeeping AI out is the site’s choice, so it never lowers the score.
- AI trainingOpenAI, Anthropic, Google, Meta and 4 moreLet in
- AI answers and searchOpenAI, Anthropic, Google, Perplexity and 3 moreLet in
Every AI crawler, and how we checked
AI companies
It has no robots.txt, so the 24 crawlers of the 10 AI companies we know may read every page.
None of the 27 other AI crawlers we know is kept out.
What it tells AI crawlers
It gives no Content Signals and no “noai” tag.
If this is your site
- Decide what AI may do with the site, and say it in robots.txt. Write the lines
Like 68% of the 1,691 popular sites whose robots.txt we read in October 2026, it keeps no AI training crawler out. How many websites block AI crawlers?
We read the site once, as our named bot: its robots.txt, read as crawlers read it, its home page and the files AI tools ask sites for. What we couldn’t read says so. robots.txt asks and doesn’t enforce: a firewall can treat AI crawlers differently from us.
Score breakdown
Site Score80 of 100: strong trust signals.
How established and checkable it is; AI traces carry no weight.
TransparencyContact, policies and about page18 / 30
Track recordHow long the domain has existed25 / 25
PopularityIts place in public rankings20 / 20
Security and setupHTTPS and standard protections11 / 15
ConsistencyName, description and what it tells search engines2 / 5
Why each part scored what it did
TransparencyContact, policies and about page18 / 30contact page linked · email and phone not both given · privacy policy linked · terms: not linked on its own; a legal page is linked, which may hold it · no payments seen, so no refund policy needed · no about page link
Track recordHow long the domain has existed25 / 25domain registered 30 years ago
PopularityIts place in public rankings20 / 20Top 10K in a popularity list
Security and setupHTTPS and standard protections11 / 15loads over HTTPS · sends visitors to HTTPS · doesn’t insist on HTTPS · no protective settings
ConsistencyName, description and what it tells search engines2 / 5site name in another script than its address: couldn’t check · describes itself · doesn’t tell search engines what it is
A high score isn’t a promise that a business is honest. How the score works.
Domain history
Domain HistoryRegistered in 1996.
- Domain registeredWHOIS (whois.jprs.jp)
- First certificate issuedCertificate Transparency
- This scanCheckAnySite
The web archive couldn’t be reached; we’ll ask it again. Why can this be empty?
Changes, earlier scans and alerts
- Since our previous scan
- This is our first scan of the site.
How we scanned it
Only from what anyone can see: the site’s public pages and public records.
- Politely. Our scanner, CheckAnySiteBot, says who it is and follows the site’s robots.txt.
- With sources. Every fact above says where it came from and when.
- Without guessing. When we couldn’t check something, we say so.
This scan, in numbers
936 checks on 29 Oct 2026, with version 0.6.0 of our checks and version 1.1 of the score.
Questions about sumo.or.jp
What is sumo.or.jp?
日本相撲協会公式サイト describes itself: “入場券や相撲観戦の情報も充実。番付の即日発表や相撲歴史文化等、最新情報提供中。” See the evidence
How old is sumo.or.jp?
Its domain was registered on 4 Jul 1996, 30 years ago. See the evidence
What is sumo.or.jp built with?
It is built with jQuery; we found 9 technologies in all. See the evidence
How popular is sumo.or.jp?
It is among the top 10,000 sites, by Tranco, Chrome UX Report and Majestic Million. See the evidence
Was sumo.or.jp made with AI?
We found no traces of an AI site builder. That doesn’t prove a person built it: AI coding assistants leave no traces. See the evidence
Who is behind sumo.or.jp?
Its copyright line names NIHON SUMO KYOKAI. See the evidence
More sites near it in popularity
Automated findings from the site’s public home page and public records, as of 29 Oct 2026. They describe what we found, not the people or business behind the site, and they may be incomplete or out of date. This is information, not advice. Terms · Report an error
What this scan can’t tell you
- Whether the business is real, honest or delivers what it sells.
- Whether a site was made with AI when no traces were left: coding assistants and hand edits leave none.
- How many people visit: we show popularity bands from public lists, not visits.
- Anything beyond the home page as it was at the time of the scan.
Is this your site? Ask for a correction.