What powers circa2040.com?
Last seen Oct 2026 · 21 technologies across 14 categories
Analytics
Blogs
Substack
since Oct 2026
CDN
Cloudflare
since Dec 2024
Google Hosted Libraries
since Dec 2024
CMS
Webflow
since Dec 2024
Font scripts
Google Font API
since Dec 2024
Issue trackers
Sentry
since Oct 2026
JavaScript frameworks
React
since Oct 2026
JavaScript libraries
Miscellaneous
Programming languages
Node.js
since Oct 2026
Security
Cloudflare Bot Management
since Dec 2024
HSTS
since Dec 2024
UI frameworks
Radix UI
since Oct 2026
Web frameworks
Express
since Oct 2026
Webmail
Proton Mail
since Oct 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 not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
France
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
0.77 / 10 · ranked #17,174,749 of all domains
4 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 600 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: French
- CDN: Cloudflare
- Weight: 20.6 MB · 264 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (198.202.211.1)
- DNS: Gandi
- Email: Gandi
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Google Trust Services, ECDSA P256, expires Jan 2027
- Common Crawl link graph: rank 7,194,830, 2 hosts
- Verified with: Google, Proton
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| futurs.circa2040.com | 17 |
| www.circa2040.com | 9 |