What powers calec.org?
Last seen Oct 2026 · 26 technologies across 17 categories
Caching
CDN
CMS
Databases
Ecommerce
Font scripts
JavaScript libraries
Load balancers
Miscellaneous
PaaS
Page builders
Performance
Programming languages
Security
Web servers
Webmail
WordPress plugins
AI Crawlers
Blocks 8 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- Applebot-Extended Blocked
- Bytespider Blocked
- CCBot Blocked
- ClaudeBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
The other 25 AI crawlers we track are not mentioned and stay allowed by default.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
Content Signals:
search=yes ai-train=no declared in robots.txt
AI Crawlers
8 of 33 AI crawlers blocked
Standards: Content Signals
Open Page Rank
2.19 / 10 · ranked #3,115,453 of all domains
13 referring domains · OpenPageRank
Page
- Language: English (United States)
- CDN: Cloudflare
- Weight: 0.5 MB · 77 requests
- WordPress theme: storefront (child: bookshop) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.20.23.145, IPv6)
- DNS: Cloudflare DNS
- Email: Microsoft 365
- Email security: SPF (hard fail), DMARC monitor only
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 6,947,824, 2 hosts
- Verified with: Google, Microsoft 365, Pinterest
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Full technology history →
Report an incorrect detection
Recent changes
- dropped GSAP Oct 2026
- dropped React Oct 2026
- detected Site Kit Oct 2026
- dropped Three.js Oct 2026
- detected Jetpack Sep 2026
- dropped Jetpack Boost Sep 2026
- dropped Popper Sep 2026
- dropped Tippy.js Sep 2026
- detected Amazon ALB Aug 2026
- detected Amazon Web Services Aug 2026
- dropped Ubuntu Aug 2026
- detected Jetpack Boost Feb 2026