What powers clfa.org?
Last seen Oct 2026 · 17 technologies across 13 categories
Advertising
CDN
CMS
Ecommerce
Font scripts
IaaS
JavaScript libraries
Miscellaneous
Performance
Security
Tag managers
Web servers
Webmail
AI Crawlers
Restricts 16 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- AI2Bot Restricted
- Applebot-Extended Restricted
- Bytespider Restricted
- CCBot Restricted
- ClaudeBot Restricted
- cohere-training-data-crawler Restricted
- FacebookBot Restricted
- Google-Extended Restricted
- GoogleOther Restricted
- GPTBot Restricted
- img2dataset Restricted
- meta-externalagent Restricted
- Webzio-Extended Restricted
Search and AI assistants
- Amazonbot Restricted
- DuckAssistBot Restricted
- YouBot Restricted
The other 17 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
16 of 33 AI crawlers restricted
Audience
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
1.85 / 10 · ranked #4,079,656 of all domains
13 referring domains · OpenPageRank
Core Web Vitals
| LCP | 1.4 s |
| CLS | 0 |
| TTFB | 500 ms |
Real user p75, Chrome UX Report, Sep 2026.
Page
- CDN: Google
- Weight: 0.3 MB · 19 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Squarespace (198.49.23.144)
- DNS: Network Solutions
- Email: Google Workspace
- Email security: SPF (soft fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 7,134,804, 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
- dropped Cloudflare Oct 2026
- dropped Cloudflare Bot Management Oct 2026
- detected Google Cloud Oct 2026
- detected Google Cloud CDN Oct 2026
- detected Google Tag Manager Oct 2026
- detected Microsoft Advertising Oct 2026
- detected Nginx Oct 2026
- detected OpenResty Oct 2026
- dropped Vimeo Oct 2026
- dropped Angular Sep 2026
- dropped TypeScript Sep 2026
- dropped Zone.js Sep 2026
- dropped Google Font API Aug 2026
- detected Angular Apr 2026
- detected TypeScript Apr 2026
- detected Zone.js Apr 2026