What powers 
let.jp?
Last seen Oct 2026 · 22 technologies across 15 categories
Advertising
Google Ads
since Dec 2022
Analytics
Databases
Firebase
since Jul 2021
Font scripts
Google Font API
since Oct 2020
IaaS
Google Cloud
since Jul 2021
JavaScript frameworks
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
Webpack
since Jan 2021
PaaS
Amazon Web Services
since Dec 2020
Page builders
STUDIO
since Jul 2021
Performance
Priority Hints
since Feb 2026
Programming languages
Node.js
since Jan 2021
Tag managers
Google Tag Manager
since Oct 2020
Web servers
Nginx
since Jun 2021
Webmail
Google Workspace
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
AI Crawlers
No robots.txt, all AI crawlers allowed
Audience
- 66% desktop
- 34% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.04 / 10 · ranked #540,522 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.1 s |
| INP | 25 ms |
| CLS | 0 |
| TTFB | 200 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Weight: 15.6 MB · 50 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Amazon Web Services (13.197.66.232)
- DNS: Amazon Route 53
- Email: Google Workspace
- Email security: no SPF record, DMARC monitor only
- SSL: Amazon Trust Services, RSA 2048, wildcard, expires Feb 2027
- Common Crawl link graph: rank 126,679, 5 hosts
- Verified with: Google, Meta Business
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| corp.let.jp | 14 |
| www.let.jp | 13 |
| let.jp | 9 |
| business.let.jp | 7 |