What powers 
tohoku.ac.jp?
Last seen Aug 2026 · 269 technologies across 44 categories
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AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 *: Allowed (was Restricted)
- Sep 2026 *: Restricted (was Allowed)
- Sep 2026 *: Allowed (was Restricted)
- Aug 2026 robots.txt appeared
- Aug 2026 * added to robots.txt
Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| tohoku | #5 | 460 |
| zinc | #93 | 350 |
| tohoku disaster | #73 | 130 |
| shame movement | #79 | 85 |
| electron transport | #89 | 85 |
| zinc oxide | #69 | 70 |
| redox reaction | #97 | 57 |
| planet mercury core | #4 | 39 |
| mercury planet core | #4 | 39 |
| miyagi | #70 | 38 |
| sendai | #60 | 31 |
| intermediate black holes | #6 | 30 |
| zn charge | #59 | 25 |
| cheryl lynn | #90 | 25 |
| zno | #65 | 21 |
| tohoku region japan | #50 | 21 |
| tohoku | #57 | 21 |
| charge of zn | #54 | 19 |
| waseda university japan | #85 | 19 |
| tohoku japan earthquake 2011 | #98 | 17 |
| what is the core of mercury made of | #3 | 17 |
| miyagi dojo | #46 | 17 |
| miyagi do | #56 | 17 |
| eve therapy | #3 | 17 |
| tokyo u | #39 | 16 |
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
- 70% desktop
- 30% phone
Japan
India
Pakistan
Indonesia
Germany
United Kingdom
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
8.38 / 10 · ranked #3,249 of all domains
4,254 referring domains · OpenPageRank
Search traffic
2,300 est. monthly organic visits (US)
1,759 keywords in Google's top 30
Core Web Vitals
| LCP | 1.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: Japanese
- Weight: 3.3 MB · 73 requests
- WordPress theme: blocksy (child: blocksy-child) · all themes
- Structured data: Microdata
Homepage as crawled by the HTTP Archive, Sep 2026.
Similar sites
nagoya-u.ac.jp 32 shared- xsrv.jp 47 shared
cuni.cz 37 shared
uaic.ro 30 sharednihon-u.ac.jp 26 shared
hiroshima-u.ac.jp 30 shared- mie.lg.jp 15 shared
- nacdnet.org 9 shared
Closest technology stacks among the highest-authority sites we track; "shared" counts the distinctive technologies in common.
Organisation
- Tohoku University
- Founded: 1907
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on SINET-AS Research Organization of Information and Systems, National Institute of Informatics (130.34.11.111)
- DNS: sinet.ad.jp
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only
- SSL: SECOM Trust Systems, RSA 2048, expires Mar 2027
- Common Crawl link graph: rank 8,885, 1,433 hosts
- Verified with: Adobe, Google, Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| five-star.tagen.tohoku.ac.jp | 30 |
| www.nmr.idac.tohoku.ac.jp | 30 |
| srd.mech.tohoku.ac.jp | 25 |
| www.cints.tohoku.ac.jp | 24 |
| www.space-infrastructure.gxt.ggi.tohoku.ac.jp | 24 |
| quantum.phys.tohoku.ac.jp | 23 |
| stpp.gp.tohoku.ac.jp | 23 |
| tumug.tohoku.ac.jp | 23 |
| www.dx.tohoku.ac.jp | 23 |
| www.sarc.tohoku.ac.jp | 23 |
| www.sxt.ggi.tohoku.ac.jp | 23 |
| www.ifs.tohoku.ac.jp | 22 |
| felectronics.ecei.tohoku.ac.jp | 21 |
| taiikubu.org.tohoku.ac.jp | 21 |
| www.ped.med.tohoku.ac.jp | 21 |
| www.rt-medphys.med.tohoku.ac.jp | 21 |
| www.sairct.idac.tohoku.ac.jp | 21 |
| istu4g.dc.tohoku.ac.jp | 20 |
| spin.apph.tohoku.ac.jp | 20 |
| www.cds.tohoku.ac.jp | 20 |
| www.ss.cc.tohoku.ac.jp | 20 |
| aimd.cds.tohoku.ac.jp | 19 |
| case.dx.tohoku.ac.jp | 19 |
| pparc.gp.tohoku.ac.jp | 19 |
Full technology history →
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Recent changes
- detected Google Cloud Trace Aug 2026
- detected Tiny Slider Aug 2026
- dropped Google Sites Apr 2026
- dropped Gravatar Apr 2026
- detected OpenResty Mar 2026
- detected Microsoft Clarity Feb 2026
- detected Closure Library Jan 2026
- dropped TinyMCE Jan 2026
- dropped SiteOrigin Widgets Bundle Dec 2025
- detected Twenty Nineteen Dec 2025
- dropped HubSpot Analytics Nov 2025
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- dropped Raspbian Nov 2025
- detected TinyMCE Nov 2025
- detected Blocksy Oct 2025
- detected Blocksy Companion Oct 2025
- dropped FullCalendar Oct 2025
- detected Stackable Oct 2025
- detected Twenty Sixteen Oct 2025