What powers 
jasdec.com?
Last seen Oct 2026 · 16 technologies across 11 categories
Analytics
Google Analytics
since Aug 2018
CDN
Amazon CloudFront
since Sep 2026
Amazon SES
since Jan 2023
JavaScript libraries
Load balancers
Amazon ALB
since Aug 2023
PaaS
Amazon Web Services
since Jan 2023
Programming languages
Tag managers
Google Tag Manager
since Aug 2023
Web frameworks
Ruby on Rails
since Aug 2022
Web servers
Apache HTTP Server
since Oct 2016
Nginx
since Aug 2022
Webmail
Apple iCloud Mail
since Jan 2023
Microsoft 365
since Aug 2022
AI Crawlers
No robots.txt, so all AI crawlers are allowed by default. Checked Nov 2026.
- robots.txt not found
- llms.txt not found
- ai.txt not found
- Nov 2026 * removed from robots.txt
- Nov 2026 amazonbot removed from robots.txt
- Nov 2026 bytespider removed from robots.txt
- Nov 2026 meta-externalagent removed from robots.txt
- Nov 2026 petalbot removed from robots.txt
- Nov 2026 robots.txt removed
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 60% desktop
- 40% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.59 / 10 · ranked #387,763 of all domains
120 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.6 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 900 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: Japanese
- CDN: Amazon CloudFront
- Weight: 0.2 MB · 25 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Japan Securities Depository Center
- Founded: 2002
- Country: Japan
From Wikidata (CC0).
Infrastructure
- Registered Nov 2000 (25 years) via Japan Registry Services Co., Ltd., renews Nov 2027
- DNS: d-53.info
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC quarantine, DNSSEC signed
- SSL: DigiCert, RSA 2048, expires May 2027
- Common Crawl link graph: rank 826,278, 3 hosts
- Verified with: Apple Business
DNS records as swept Nov 2026, certificate as seen Nov 2026, registration from the registry's RDAP service. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| faq.jasdec.com | 11 |
| www.jasdec.com | 11 |
Full technology history →
Report an incorrect detection
Recent changes
- detected Amazon CloudFront Sep 2026