What powers checkfile.ai?
Last seen Aug 2026 · 14 technologies across 10 categories
Analytics
Development
JavaScript frameworks
Miscellaneous
PaaS
Performance
Programming languages
Security
Tag managers
UI frameworks
AI Crawlers
Does not block any of the 33 AI crawlers we track in its robots.txt. Checked Sep 2026.
Training crawlers
- Applebot-Extended Allowed
- Bytespider Allowed
- CCBot Allowed
- ClaudeBot Allowed
- cohere-training-data-crawler Allowed
- Google-Extended Allowed
- GPTBot Allowed
- meta-externalagent Allowed
Search and AI assistants
- Amazonbot Allowed
- PerplexityBot Allowed
User-request fetchers
- ChatGPT-User Allowed
The other 22 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 checked
AI Crawlers
No AI crawlers blocked
Standards: llms.txt, llms-full.txt
Audience
- 50% phone
- 50% desktop
Mexico
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.38 / 10 · ranked #7,713,420 of all domains
8 referring domains · OpenPageRank
Core Web Vitals
| LCP | 3.2 s |
| INP | 75 ms |
| CLS | 0 |
| TTFB | 800 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- CDN: Vercel
- Weight: 6.9 MB · 46 requests
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
From the homepage's own structured data (Sep 2026).
Infrastructure
- Hosted on Amazon Web Services (216.150.1.1)
- Email: no MX record returned, SPF names Google Workspace
- Email security: SPF (soft fail), DMARC monitor only, DNSSEC signed
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 2,601,216, 2 hosts
- Verified with: Google
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted