What powers lesson-time.com?
Last seen Sep 2026 · 19 technologies across 9 categories
Analytics
Microsoft Clarity
since Mar 2024
CDN
Google Hosted Libraries
since Mar 2022
jQuery CDN
since Mar 2022
Google Workspace
since Aug 2022
Sendgrid
since Aug 2022
Font scripts
JavaScript libraries
Miscellaneous
Open Graph
since Sep 2022
PWA
since Aug 2022
Security
HSTS
since Sep 2022
Tag managers
Google Tag Manager
since Jun 2020
UI frameworks
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 100% phone
Japan
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.23 / 10 · ranked #1,216,169 of all domains
31 referring domains · OpenPageRank
Core Web Vitals
| LCP | 0.7 s |
| CLS | 0 |
| TTFB | 300 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: Japanese
- CDN: Google
- Weight: 2.2 MB · 79 requests
- Structured data: Microdata, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Google Cloud (34.85.3.105)
- Email: no MX record returned
- SSL: Google Trust Services, RSA 2048, expires Oct 2026
- Common Crawl link graph: rank 120,077, 4 hosts
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| lesson-time.com | 17 |
| web.lesson-time.com | 14 |