What powers cantabular.com?
Last seen Oct 2026 · 17 technologies across 12 categories
Caching
CDN
CMS
Font scripts
Issue trackers
JavaScript frameworks
JavaScript libraries
Miscellaneous
PaaS
Security
Web servers
AI Crawlers
Blocks 13 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
- cohere-training-data-crawler Blocked
- Diffbot Blocked
- Google-CloudVertexBot Blocked
- Google-Extended Blocked
- GoogleOther Blocked
- GPTBot Blocked
- meta-externalagent Blocked
Search and AI assistants
- Amazonbot Blocked
- PetalBot Blocked
The other 20 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
- Oct 2026 petalbot added to robots.txt
- Oct 2026 applebot-extended added to robots.txt
- Oct 2026 gptbot added to robots.txt
- Oct 2026 anthropic-ai added to robots.txt
- Oct 2026 google-extended added to robots.txt
- Oct 2026 Content Signals changed
AI Crawlers
13 of 33 AI crawlers blocked
Standards: Content Signals
Open Page Rank
1.82 / 10 · ranked #4,219,051 of all domains
9 referring domains · OpenPageRank
Search traffic
9 est. monthly organic visits (US)
25 keywords in Google's top 30
Page
- Language: English
- CDN: Fastly
- Weight: 0.4 MB · 11 requests
Homepage as crawled by the HTTP Archive, Oct 2026.
Infrastructure
- Hosted on Cloudflare (104.21.41.221, IPv6)
- DNS: Cloudflare DNS
- Email: Google Workspace
- Email security: SPF (soft fail), DMARC monitor only, CAA
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Nov 2026
- Common Crawl link graph: rank 7,986,165, 3 hosts
- Verified with: Google
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| cantabular.com | 13 |
| ni-census-maps.cantabular.com | 7 |