What powers castledown.com?
Last seen Oct 2023 · 32 technologies across 15 categories
CMS
WordPress
since Jan 2021
Databases
MySQL
since Jan 2021
DMS
Ecommerce
Cart Functionality
since Jan 2021
WooCommerce
since Jan 2021
Font scripts
Font Awesome
since Jan 2021
Google Font API
since Jan 2021
JavaScript libraries
OWL Carousel
since Jan 2021
Slick
since Apr 2023
Miscellaneous
PaaS
WordPress.com
since May 2023
Programming languages
Security
HSTS
since May 2023
UI frameworks
Animate.css
since Jan 2021
Bootstrap
since Oct 2023
Web servers
Webmail
Google Workspace
since Aug 2022
Microsoft 365
since Dec 2022
Widgets
FlexSlider
since Apr 2023
WordPress plugins
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 Sep 2026.
- robots.txt found
- llms.txt not found
- ai.txt not found
- Sep 2026 robots.txt appeared
- Sep 2026 * added to robots.txt
- Sep 2026 * removed from robots.txt
- Aug 2026 robots.txt removed
- Aug 2026 robots.txt appeared
- Aug 2026 * added to robots.txt
AI Crawlers
No AI crawlers blocked
Audience
- 74% desktop
- 26% phone
Japan
Indonesia
India
United Kingdom
United States
Australia
Where the site's Chrome visitors come from, largest estimated audience first.
Open Page Rank
3.92 / 10 · ranked #631,137 of all domains
72 referring domains · OpenPageRank
Core Web Vitals
| LCP | 2.4 s |
| INP | 50 ms |
| CLS | 0 |
| TTFB | 1300 ms |
Real user p75, Chrome UX Report, Aug 2026.
Infrastructure
- Hosted on INSTRACORPORATION-AS-AP Instra Corporation Pty Ltd (103.152.248.33)
- DNS: OnlyDomains
- Email: Microsoft 365
- Email security: SPF (hard fail), no DMARC record
- SSL: Let's Encrypt, RSA 2048, expires Nov 2026
- Common Crawl link graph: rank 1,076,746, 4 hosts
- Verified with: Microsoft 365
DNS records as swept Sep 2026, certificate as seen Sep 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| www.castledown.com | 27 |
| conferences.castledown.com | 11 |
| manuscripts.castledown.com | 9 |