What powers nichigai.co.jp?

Last seen Oct 2026 · 21 technologies across 13 categories

Analytics

Google Analytics
since Jan 2019

CMS

WordPress v7.1.3
since Apr 2026

Databases

MySQL
since Apr 2026

Font scripts

Font Awesome
since Jul 2026
Google Font API
since Jun 2020
Twitter Emoji (Twemoji)
since Apr 2026

JavaScript libraries

jQuery v3.7.1
since Jun 2020
jQuery Migrate v3.4.1
since Jul 2026
jQuery UI v1.12.1
since Jun 2020

Operating systems

CentOS
since Aug 2016
UNIX
since Oct 2025

Page builders

WordPress Block Editor
since Apr 2026

Programming languages

PHP
since Jun 2020
Python v3.7
since Jun 2020

Security

HSTS
since Jun 2025

UI frameworks

Bootstrap v3.3.6
since Jun 2020

Web frameworks

Django
since Jun 2020

Web server extensions

mod_wsgi v4.7.1
since Jun 2020
OpenSSL v1.0.2k
since Jun 2020

Web servers

Apache HTTP Server v2.4.63
since Aug 2016
Nginx
since Apr 2026

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

See who blocks each AI crawler across the web

Top search keywords

KeywordPositionEst. monthly visits
magazineplus #12 1
whoplus #49 0
whoplus #15 0

The site's top keywords in Google (US), with the visits each one is estimated to bring per month.

Top backlinks

FromAnchor text
kinokuniya.co.jp こちら(日外アソシエーツHP)
cinematoday.jp 長岡輝子さんがふるさと岩手のなまりで朗読した「宮沢賢治の魅力」
weeklybcn.com 「BOOK」データベース=http://www.nichigai.co.jp/dcs/index3.html
elplanning.co.jp 「発言小町投稿データ」のご案内(PDF)
tkl.iis.u-tokyo.ac.jp Mainichi 1995 CD-ROM
oya-bunko.or.jp 詳細・ご購入はこちらから(日外アソシエーツHPへ)
njc.co.jp http://www.nichigai.co.jp/dcs/index3.html
tenri-u.ac.jp 『世界のビジネス・アーカイブズ:企業価値の源泉』
trc.co.jp BookPlus
nagoya-bunri.ac.jp (no text)
shiminkagaku.org 『市民活動 資料の保存と公開 草の根の資料を活用するために』
kknews.co.jp 日外アソシエーツ
overthesensitivity.com 「BOOK」データベース
gsk.or.jp 「CD-毎日新聞’94データ集」
library.okazaki.aichi.jp CD‐毎日新聞
min.ac.jp MAGAZINEPULS(日外アソシエーツ雑誌論文記事情報)
art-society.com レコード・マネジメント・ハンドブック―記録管理・アーカイブズ管理のための
okazaki-trip.com 「BOOK」データベース
libweb.city.setagaya.tokyo.jp MAGAZINEPLUS外部リンク
bangbangmaia.com 日外アソシエーツBookPlus
lib.city.takasaki.gunma.jp 「MagazinePlus」
team-lab.com (no text)
hjym-u.hatenadiary.org 毎日新聞データ
lib.agu.ac.jp こちら
je6ssy.synapse.kagoshima.jp (no text)

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

Full breakdown

Audience

  • 69% desktop
  • 31% phone
  • Japan

Where the site's Chrome visitors come from, largest estimated audience first.

Open Page Rank

5.62 / 10 · ranked #144,777 of all domains

128 referring domains · OpenPageRank

Search traffic

1 est. monthly organic visits (US)

3 keywords in Google's top 30

Core Web Vitals

LCP1.3 s
INP25 ms
CLS0
TTFB700 ms

Real user p75, Chrome UX Report, Sep 2026.

Page

  • Language: Japanese
  • Weight: 4.3 MB · 89 requests
  • WordPress theme: nichigai_style · all themes

Homepage as crawled by the HTTP Archive, Oct 2026.

Organisation

  • Nichigai Associates
  • Founded: 1965
  • Country: Japan

From Wikidata (CC0).

Infrastructure

  • Hosted on Xserver (162.43.104.15)
  • DNS: nichigai.co.jp
  • Email: nichigai.co.jp
  • Email security: SPF (hard fail), no DMARC record
  • SSL: Let's Encrypt, RSA 2048, expires Dec 2026
  • Common Crawl link graph: rank 1,069,797, 9 hosts
  • Verified with: Google, Sophos

DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted

Subdomains

HostTechs
web.nichigai.co.jp 11
www.nichigai.co.jp 11
inyo.nichigai.co.jp 4

Full technology history →
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