What powers ctbto.org?
Last seen Jun 2026 · 68 technologies across 27 categories
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Top search keywords
| Keyword | Position | Est. monthly visits |
|---|---|---|
| hiroshima date | #2 | 2,400 |
| tuckaleechee caverns | #5 | 1,000 |
| how many civilians died in hiroshima | #6 | 690 |
| how many civilians died in hiroshima and nagasaki | #8 | 530 |
| nuclear test | #3 | 530 |
| nuclear test ban treaty | #1 | 490 |
| bomber nagasaki | #21 | 460 |
| iran earthquake | #10 | 340 |
| petropavlovsk kamchatka russia | #4 | 330 |
| when was the atomic bomb dropped on hiroshima | #5 | 310 |
| rarotonga | #7 | 310 |
| nagasaki explosion | #15 | 310 |
| comprehensive nuclear test ban treaty | #1 | 300 |
| why did the us bomb hiroshima and nagasaki | #5 | 290 |
| nuclear treaty | #2 | 260 |
| hiroshima nagasaki victims | #5 | 250 |
| comprehensive test ban treaty | #1 | 230 |
| comprehensive nuclear-test-ban treaty | #1 | 230 |
| why did we bomb hiroshima and nagasaki | #7 | 210 |
| august 6th 1945 | #5 | 210 |
| hiroshima day | #2 | 160 |
| when was the bomb dropped on hiroshima | #5 | 160 |
| nagasaki atomic bomb | #18 | 150 |
| north korea nuclear | #7 | 140 |
| infrasound | #9 | 120 |
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.
Audience
- 59% desktop
- 41% phone
Austria
India
United Kingdom
Canada
Australia
Pakistan
Countries where the site has Chrome traffic, strongest markets first.
Open Page Rank
7.25 / 10 · ranked #29,911 of all domains
988 referring domains · OpenPageRank
Search traffic
15,400 est. monthly organic visits (US)
2,741 keywords in Google's top 30
Core Web Vitals
| LCP | 2.3 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 1200 ms |
Real user p75, Chrome UX Report, Jun 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 16.2 MB · 33 requests
Homepage as crawled by the HTTP Archive, Jul 2026.
Subdomains
| Host | Techs |
|---|---|
| conferences.ctbto.org | 21 |
| osi-training.ctbto.org | 18 |
| video.ctbto.org | 18 |
| ktp.ctbto.org | 16 |
| ndc-forum.ctbto.org | 16 |
| www.ctbto.org | 15 |
| snt2025.ctbto.org | 14 |
| youthgroup.ctbto.org | 14 |
| ctnw.ctbto.org | 12 |
| ecs.ctbto.org | 11 |
| swp.ctbto.org | 11 |
| survey.ctbto.org | 9 |
| access.ctbto.org | 8 |
Full technology history →
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Recent changes
- detected Weglot Nov 2025