What powers lettre-utile.fr?
Last seen Sep 2026 · 18 technologies across 15 categories
Advertising
Analytics
CMS
Cookie compliance
Databases
Font scripts
Miscellaneous
Page builders
Performance
Programming languages
Security
Tag managers
Web servers
WordPress plugins
WordPress themes
AI Crawlers
Blocks 3 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- ClaudeBot Blocked
- GPTBot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 30 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
3 of 33 AI crawlers blocked
Audience
- 60% desktop
- 40% phone
France
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
2.26 / 10 · ranked #2,967,223 of all domains
11 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.8 s |
| INP | 150 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: French (France)
- Weight: 1.6 MB · 90 requests
- WordPress theme: generatepress (child: generatepress_child) · all themes
- Structured data: JSON-LD, Microdata, OpenGraph
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Lettre Utile
From the homepage's own structured data (Oct 2026).
Infrastructure
- Hosted on OVHcloud (176.31.135.201)
- DNS: anycast.me
- Email: OVHcloud
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Jan 2027
- Common Crawl link graph: rank 12,828,010, 2 hosts
- Verified with: Google
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
- detected Priority Hints Sep 2026
- dropped WordPress Super Cache Aug 2026
- detected Google Font API Jul 2026