What powers 
crdcn.ca?
Last seen Sep 2026 · 24 technologies across 15 categories
Analytics
CDN
CMS
Databases
Font scripts
JavaScript libraries
Miscellaneous
Operating systems
Programming languages
SEO
UI frameworks
Video players
Web servers
Webmail
WordPress plugins
AI Crawlers
Blocks 13 of 33 AI crawlers we track by name in its robots.txt. Checked Oct 2026.
Training crawlers
- Bytespider Blocked
- ClaudeBot Blocked
- Diffbot Blocked
- FacebookBot Blocked
- Google-Extended Blocked
- GPTBot Blocked
- ImagesiftBot Blocked
- Webzio-Extended Blocked
Search and AI assistants
- Amazonbot Blocked
- Applebot Blocked
- PerplexityBot Blocked
- YouBot Blocked
User-request fetchers
- ChatGPT-User Blocked
The other 20 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 checked
- ai.txt not checked
AI Crawlers
13 of 33 AI crawlers blocked
Audience
- 78% desktop
- 22% phone
Canada
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
4.28 / 10 · ranked #438,092 of all domains
67 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Page
- Language: English (United States)
- Weight: 1.4 MB · 77 requests
- WordPress theme: macsites-theme (child: crdcn-theme) · all themes
- Structured data: JSON-LD, OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Sep 2026.
Organisation
- Canadian Research Data Centre Network
- Founded: 2000
- Country: Canada
From Wikidata (CC0).
Infrastructure
- Hosted on MCMASTER (130.113.213.84)
- DNS: Google Cloud DNS
- Email: Microsoft 365
- Email security: SPF (soft fail), DMARC monitor only
- SSL: Let's Encrypt, RSA 2048, expires Dec 2026
- Common Crawl link graph: rank 6,895,339, 5 hosts
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 PWA Aug 2026
- detected Twitter Emoji (Twemoji) Feb 2026
- dropped Selectize Nov 2025