What powers 
castle.ca?
Last seen Oct 2026 · 21 technologies across 12 categories
Analytics
CDN
Font scripts
JavaScript libraries
Maps
Marketing automation
Miscellaneous
Programming languages
Security
Tag managers
Video players
Web servers
AI Crawlers
Doesn't name any of the 33 AI crawlers we track in its robots.txt. Catch-all rules (User-agent: *) restrict some paths for every crawler, AI or not. Checked Nov 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
AI Crawlers
No AI crawlers blocked
Audience
- 66% phone
- 32% desktop
- 3% tablet
Canada
United States
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.79 / 10 · ranked #719,415 of all domains
40 referring domains · OpenPageRank
Search traffic
140 est. monthly organic visits (US)
922 keywords in Google's top 30
Core Web Vitals
| LCP | 1.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 400 ms |
Real user p75, Chrome UX Report, Oct 2026.
Page
- Language: English
- Weight: 6.2 MB · 52 requests
- Structured data: OpenGraph, Twitter Cards
Homepage as crawled by the HTTP Archive, Oct 2026.
Organisation
- Castle Building Centres Group
- Founded: 1963
- Country: Canada
From Wikidata (CC0).
Infrastructure
- Hosted on Amazon Web Services (54.70.244.255)
- DNS: microsoftonline.com
- Email: Broadcom MessageLabs
- Email security: SPF (hard fail), DMARC reject
- SSL: Sectigo, RSA 2048, wildcard, expires Jan 2027
- Common Crawl link graph: rank 7,237,841, 12 hosts
- Verified with: Google, Meta Business, Microsoft 365
DNS records as swept Nov 2026, certificate as seen Nov 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| renocontest.castle.ca | 11 |
| castle.ca | 10 |
| locator.castle.ca | 9 |
| www.castle.ca | 5 |
| 60k.castle.ca | 4 |
| fourseasonscontest.castle.ca | 4 |
| homesweethome.castle.ca | 4 |
Full technology history →
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Recent changes
- detected HSTS Aug 2026