What powers 
developmentbookshelf.com?
Last seen Jul 2026 · 20 technologies across 13 categories
Analytics
Cloudflare Browser Insights
since Jul 2026
Google Analytics
since Aug 2018
CDN
Cloudflare
since Sep 2018
Font scripts
Google Font API
since Mar 2017
JavaScript frameworks
JavaScript libraries
Miscellaneous
HTTP/3
since Jul 2026
Open Graph
since Apr 2024
Operating systems
Ubuntu
since Jul 2020
Payment processors
PayPal
since Jul 2026
Reverse proxies
Reviews
Google Customer Reviews
since Jul 2026
Security
Cloudflare Bot Management
since Jul 2026
Web servers
Apache HTTP Server
since Jun 2024
Widgets
AI Crawlers
Doesn't mention any of the 33 AI crawlers we track in its robots.txt; all are allowed by default. Checked Oct 2026.
- robots.txt found
- llms.txt not checked
- ai.txt not checked
- Sep 2026 bytespider removed from robots.txt
- Sep 2026 amazonbot removed from robots.txt
- Sep 2026 applebot-extended removed from robots.txt
- Sep 2026 meta-externalagent removed from robots.txt
- Sep 2026 ccbot removed from robots.txt
- Sep 2026 claudebot removed from robots.txt
AI Crawlers
No AI crawlers blocked
Open Page Rank
3.93 / 10 · ranked #623,393 of all domains
78 referring domains · OpenPageRank
Infrastructure
- Hosted on Cloudflare (104.21.69.39)
- Email: no MX record returned
- SSL: Let's Encrypt, ECDSA P256, wildcard, expires Dec 2026
- Common Crawl link graph: rank 2,280,389, 2 hosts
DNS records as swept Oct 2026, certificate as seen Oct 2026. How the web is hosted
Subdomains
| Host | Techs |
|---|---|
| developmentbookshelf.com | 16 |
| www.developmentbookshelf.com | 4 |
Full technology history →
Report an incorrect detection
Recent changes
- dropped Boomerang Jul 2026
- dropped Cart Functionality Jul 2026
- dropped core-js Jul 2026
- dropped Shopify Jul 2026