What powers 
arsen.co?
Last seen Oct 2026 · 13 technologies across 10 categories
CDN
Issue trackers
JavaScript frameworks
Miscellaneous
PaaS
Performance
Security
UI frameworks
Webmail
AI Crawlers
Restricts 10 of 33 AI crawlers we track by name in its robots.txt. Checked Nov 2026.
Training crawlers
- Applebot-Extended Restricted
- CCBot Restricted
- ClaudeBot Restricted
- cohere-training-data-crawler Restricted
- Google-Extended Restricted
- GPTBot Restricted
Search and AI assistants
- OAI-SearchBot Restricted
- PerplexityBot Restricted
User-request fetchers
- ChatGPT-User Restricted
- Perplexity-User Restricted
The other 23 AI crawlers we track are not mentioned and only inherit the catch-all rules that apply to every crawler.
- robots.txt found
- llms.txt found
- llms-full.txt found
- ai.txt not found
AI Crawlers
10 of 33 AI crawlers restricted
Standards: llms.txt, llms-full.txt
Audience
- 74% desktop
- 26% phone
France
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.90 / 10 · ranked #649,943 of all domains
58 referring domains · OpenPageRank
Search traffic
4,200 est. monthly organic visits (US)
703 keywords in Google's top 30
Core Web Vitals
| LCP | 1.7 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1000 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- Language: English
- CDN: Netlify
- Weight: 0.3 MB · 29 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Arsen Security
- Founded: 2021
- Industry: Software and apps (declares
SoftwareApplication) - Sector: computer security
- Country: France
- Profiles: LinkedIn, YouTube, X, GitHub
From the homepage's own structured data (Oct 2026) and Wikidata (CC0).
Infrastructure
- Hosted on Amazon Web Services (75.2.60.5)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC quarantine
- SSL: Let's Encrypt, ECDSA P256, expires Dec 2026
- Common Crawl link graph: rank 9,227,709, 5 hosts
- Verified with: Apple Business, Brevo, Firebase, Google, LinkedIn, MailerLite, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
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Recent changes
- detected RSS Apr 2026