What powers lessons250.com?
Last seen Sep 2026 · 13 technologies across 8 categories
Analytics
Simple Analytics
since Aug 2026
CDN
Cloudflare
since Aug 2026
Hosting
GoDaddy
since Aug 2026
JavaScript frameworks
React
since Aug 2026
Miscellaneous
Security
HSTS
since Aug 2026
UI frameworks
Video players
YouTube
since Aug 2026
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt found
- ai.txt not checked
AI Crawlers
No AI crawlers blocked
Standards: llms.txt
Audience
- 100% phone
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Core Web Vitals
| LCP | 3.1 s |
| INP | 100 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Cloudflare
- Weight: 13.4 MB · 43 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Lessons 250
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on RENDER (216.24.57.1)
- DNS: GoDaddy DNS
- Email: no MX record returned
- Email security: DMARC quarantine
- SSL: Google Trust Services, ECDSA P256, expires Dec 2026
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted