What powers 
u-ryukyu.ac.jp?
Last seen Oct 2026 · 166 technologies across 39 categories
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AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Aug 2026 llms.txt removed
- Aug 2026 llms.txt appeared
- Aug 2026 *: Restricted (was Allowed)
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| ryukyu university | #1 | 12 |
| ryu university | #3 | 3 |
| okinawa university | #12 | 3 |
| university of the ryukyus | #14 | 2 |
| university of okinawa | #6 | 2 |
| ryukyuan language | #93 | 2 |
| the ryukyus | #6 | 1 |
| rise japan | #10 | 1 |
| ryukoku university kyoto | #56 | 1 |
| okinawa universities | #4 | 1 |
| miyako islands | #74 | 1 |
| zoantharia | #94 | 0 |
| colleges in okinawa japan | #84 | 0 |
| teaching english in okinawa japan | #63 | 0 |
| university motto | #60 | 0 |
| universities in okinawa | #100 | 0 |
| universities in okinawa | #52 | 0 |
| what is ryukyu | #73 | 0 |
| rise of japan | #67 | 0 |
| rise in japanese | #37 | 0 |
| sakura university | #54 | 0 |
| ryky | #15 | 0 |
| ryukyus islands | #42 | 0 |
| ryukyu university | #79 | 0 |
| ryukyu meaning japanese | #39 | 0 |
The site's top keywords in Google (US), with the visits each one is estimated to bring per month.
Top backlinks
Top links pointing at the site, one per source domain, strongest first. The anchor text opens the page carrying the link.
AI Crawlers
No AI crawlers blocked
Audience
- 56% phone
- 44% desktop
Japan
Germany
Taiwan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
7.49 / 10 · ranked #17,598 of all domains
886 referring domains · OpenPageRank
Search traffic
29 est. monthly organic visits (US)
43 keywords in Google's top 30
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 0.7 MB · 26 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Similar sites
nagoya-u.ac.jp 23 shared
goiam.org 5 sharedkanazawa-u.ac.jp 17 shared
tsukuba.ac.jp 23 shared
osaka-u.ac.jp 26 shared
hiroshima-u.ac.jp 21 shared
nagasaki-u.ac.jp 14 shared- aop.bg 5 shared
Closest technology stacks among the highest-authority sites we track; "shared" counts the distinctive technologies in common.
Organisation
- 琉球大学 (University of the Ryukyus on Wikidata)
- Founded: 1950
- Country: Japan
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on RAINS-AS - University of the Ryukyus (133.13.6.2)
- DNS: sinet.ad.jp
- Email: u-ryukyu.ac.jp
- Email security: SPF (hard fail), DMARC monitor only
- SSL: JPRS, RSA 2048, wildcard, expires Feb 2027
- Common Crawl link graph: rank 13,752, 280 hosts
- Verified with: Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| sdgs.skr.u-ryukyu.ac.jp | 29 |
| bousai.skr.u-ryukyu.ac.jp | 28 |
| www.agr.u-ryukyu.ac.jp | 25 |
| rlc.med.u-ryukyu.ac.jp | 24 |
| riis.skr.u-ryukyu.ac.jp | 21 |
| coinext2.skr.u-ryukyu.ac.jp | 20 |
| ganka.skr.u-ryukyu.ac.jp | 20 |
| r-iten.skr.u-ryukyu.ac.jp | 20 |
| seis.sci.u-ryukyu.ac.jp | 20 |
| www.sci.u-ryukyu.ac.jp | 20 |
| chi.med.u-ryukyu.ac.jp | 19 |
| chiiki.skr.u-ryukyu.ac.jp | 19 |
| civil.tec.u-ryukyu.ac.jp | 19 |
| dlab.skr.u-ryukyu.ac.jp | 19 |
| ict.med.u-ryukyu.ac.jp | 19 |
| www.u-ryukyu.ac.jp | 18 |
| ged.skr.u-ryukyu.ac.jp | 17 |
| ges.skr.u-ryukyu.ac.jp | 17 |
| isu.skr.u-ryukyu.ac.jp | 17 |
| www.hs.u-ryukyu.ac.jp | 17 |
| biochem.med.u-ryukyu.ac.jp | 16 |
| ecocampus.jim.u-ryukyu.ac.jp | 16 |
| ir.lib.u-ryukyu.ac.jp | 16 |
| ninchi-c.med.u-ryukyu.ac.jp | 16 |
Full technology history →
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Recent changes
- detected Cookie Notice Oct 2026
- dropped Cookie Notice Sep 2026
- detected AOS Aug 2026
- detected Hugo Aug 2026
- dropped Red Hat Jul 2026
- dropped VideoJS Jun 2026
- dropped Cookie Notice Apr 2026
- detected Highlight.js Apr 2026
- detected LottieFiles Apr 2026
- detected MobX Apr 2026
- detected TinyMCE Jan 2026