What powers rerf.or.jp?

Last seen Jun 2026 · 11 technologies across 11 categories

Analytics

Google Analytics
since Jan 2019

CDN

jQuery CDN
since Feb 2022

CMS

WordPress
since Jan 2019

CRM

Salesforce
since Aug 2025

Databases

MySQL
since Jan 2019

JavaScript libraries

jQuery v2.2.4
since Jan 2019

Programming languages

PHP v5.5.27
since Jan 2019

Tag managers

Google Tag Manager
since Jan 2019

Web servers

Apache HTTP Server
since Jan 2019

Webmail

Microsoft 365
since Aug 2022

WordPress plugins

Polylang
since Oct 2022

Top search keywords

KeywordPositionEst. monthly visits
ionization #9 270
gy radiation #2 140
atomic bomb birth defects #1 79
radiation can cause damage to human cells by #1 79
hiroshima bombing birth defects #1 79
hiroshima and nagasaki birth defects #1 79
hiroshima mutations #8 57
is nagasaki still radioactive #10 56
rerf #1 48
neutron radiation #5 47
why is ionizing radiation damaging to cells #1 43
background radiation #7 41
why is radiation dangerous #7 33
united states atomic energy commission #8 32
us academy of science #37 31
gy unit of radiation #6 30
ionization example #3 29
biological significance #1 27
how does radiation kill #5 26
radiation cataract #2 23
effects of hiroshima #6 23
ministry of health labour and welfare #8 20
gray unit #6 20
how does radiation affect the body #8 20
biological meaning #41 19

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

  • 56% desktop
  • 44% phone
  • Japan
  • United States

Countries where the site has Chrome traffic, strongest markets first.

Open Page Rank

6.32 / 10 · ranked #87,930 of all domains

255 referring domains · OpenPageRank

Search traffic

2,200 est. monthly organic visits (US)

957 keywords in Google's top 30

Core Web Vitals

LCP3.8 s
INP50 ms
CLS0.05
TTFB3300 ms

Real user p75, Chrome UX Report, Jun 2026.

Page

  • Language: English (United States)
  • Weight: 2.4 MB · 65 requests

Homepage as crawled by the HTTP Archive, Jul 2026.

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