What powers 
hirosima.co.jp?
Last seen Oct 2026 · 30 technologies across 18 categories
A/B Testing
Google Optimize
since Jan 2023
Advertising
Google Ads
since Dec 2022
Yahoo Advertising
since Apr 2022
Analytics
Google Ads Conversion Tracking
since Jul 2021
Google Analytics
since Jan 2019
Microsoft Clarity
since May 2022
CDN
CMS
Databases
MySQL
since Jan 2019
Font scripts
Google Font API
since Oct 2023
Hosting
Sakura Internet
since Aug 2022
JavaScript libraries
Maps
Google Maps
since Dec 2020
Marketing automation
Salesforce Marketing Cloud Account Engagement
since Dec 2022
Miscellaneous
Open Graph
since Jan 2023
Programming languages
Security
reCAPTCHA
since Jun 2022
Tag managers
Google Tag Manager
since Nov 2020
Web servers
Nginx
since Jan 2019
Webmail
Google Workspace
since Aug 2022
WordPress plugins
WP-PageNavi
since Feb 2022
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 52% phone
- 48% desktop
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.18 / 10 · ranked #465,206 of all domains
43 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 75 ms |
| CLS | 0.05 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 4.6 MB · 120 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- 広島建設 (Hiroshima Kensetsu on Wikidata)
- Founded: 1970
- Country: Japan
- Profiles: Facebook, X, Instagram, YouTube
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Sakura Internet (153.127.97.229)
- DNS: Sakura Internet
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 2,092,622, 2 hosts
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| hirosima.co.jp | 30 |
| www.hirosima.co.jp | 26 |