What powers j4s.fr?
Last seen Oct 2026 · 23 technologies across 15 categories
CMS
Databases
Font scripts
JavaScript graphics
JavaScript libraries
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
Web servers
Webmail
WordPress plugins
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 Oct 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 60% phone
- 40% desktop
France
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.28 / 10 · ranked #2,924,370 of all domains
11 referring domains · OpenPageRank
Core Web Vitals
| LCP | 4.5 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 3600 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: French (France)
- Weight: 3.4 MB · 47 requests
- WordPress theme: hello-elementor · all themes
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Automattic (WordPress.com) (192.0.78.170)
- DNS: anycast.me
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Google Trust Services, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 24,840,996, 3 hosts
- Verified with: Brevo, Microsoft 365
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
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Recent changes
- dropped Babel Oct 2026
- dropped Bootstrap Oct 2026
- dropped Contact Form 7 Oct 2026
- dropped Google Analytics Oct 2026
- dropped Google Font API Oct 2026
- dropped Google Maps Oct 2026
- detected Google Tag Manager Oct 2026
- dropped Isotope Oct 2026
- dropped lit-element Oct 2026
- dropped lit-html Oct 2026
- detected Mailjet Oct 2026
- dropped Open Graph Oct 2026
- dropped reCAPTCHA Oct 2026
- dropped Select2 Oct 2026
- dropped Slider Revolution Oct 2026
- dropped WooCommerce Oct 2026
- dropped WP Fastest Cache Oct 2026
- dropped wpBakery Oct 2026
- dropped Yoast SEO Oct 2026
- detected Elementor Sep 2026
- detected HSTS Sep 2026
- detected Jetpack Sep 2026
- detected Moove GDPR Consent Sep 2026
- detected Nginx Sep 2026
- detected particles.js Sep 2026
- detected Priority Hints Sep 2026
- detected Super Page Cache Sep 2026
- detected Swiper Sep 2026
- detected Twitter Emoji (Twemoji) Sep 2026
- detected WordPress.com Sep 2026