What powers 
psc.co.jp?
Last seen Oct 2026 · 15 technologies across 13 categories
Analytics
Google Analytics
since Dec 2022
CDN
Google Cloud CDN
since Jun 2026
Databases
Firebase
since Jun 2026
Font scripts
Google Font API
since Jun 2026
IaaS
Google Cloud
since Jun 2026
JavaScript frameworks
JavaScript libraries
Miscellaneous
HTTP/3
since Jun 2026
Open Graph
since Aug 2024
Page builders
STUDIO
since Jun 2026
Programming languages
Node.js
since Jun 2026
Security
HSTS
since Jul 2024
Tag managers
Google Tag Manager
since Jun 2026
Web servers
Apache HTTP Server
since Aug 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
- Nov 2026 robots.txt appeared
- Nov 2026 * added to robots.txt
- Oct 2026 * removed from robots.txt
- Sep 2026 robots.txt removed
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 68% desktop
- 32% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.04 / 10 · ranked #541,336 of all domains
37 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.5 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 100 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- Weight: 3.5 MB · 33 requests
- Structured data: JSON-LD, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- PS Construction
- Founded: 1952
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Hosted on KDDI - KDDI CORPORATION (210.196.70.226)
- DNS: dion.ne.jp
- Email: cybermail.jp
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Google Trust Services, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 9,631,445, 2 hosts
- Verified with: Box, Google
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| recruit.psc.co.jp | 11 |
| www.concrete.psc.co.jp | 4 |
| www.psc.co.jp | 4 |