Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 104.21.42.46 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
|
ℹ 🔵 Missing HSTS | HTTP Strict Transport Security is not configured. Recommended for HTTPS sites. |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
|
ℹ 🔵 Missing X-Frame-Options | The site can be embedded in iframes by third parties (clickjacking risk). |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 104.21.42.46
Server Software cloudflare
CDN Cloudflare
Compression gzip
ℹ 🔵 Missing HSTS HTTP Strict Transport Security is not configured. Recommended for HTTPS sites.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Performance
| DNS Lookup | 40.1 ms |
| TCP Connect | 41.9 ms |
| TLS Handshake | 9 ms |
| Time To First Byte (TTFB) | 171.7 ms |
| Content Download | 0.3 ms |
| Total Response Time | 172 ms |
DNS Lookup 40.1 ms
TCP Connect 41.9 ms
TLS Handshake 9 ms
Time To First Byte (TTFB) 171.7 ms
Content Download 0.3 ms
Total Response Time 172 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Build Mind — Mental Models, Biases & How to Think |
| Meta Description | A clear, honest encyclopedia of mental models, cognitive biases and how to think — every entry defined, worked through, and cross-linked. |
| Canonical | https://build-mind.com |
| Robots Meta | index,follow |
| Open Graph Title | Build Mind — Mental Models, Biases & How to Think |
| Open Graph Description | A clear, honest encyclopedia of mental models, cognitive biases and how to think — every entry defined, worked through, and cross-linked. |
Title Build Mind — Mental Models, Biases & How to Think
Meta Description A clear, honest encyclopedia of mental models, cognitive biases and how to think — every entry defined, worked through, and cross-linked.
Canonical https://build-mind.com
Robots Meta index,follow
Open Graph Title Build Mind — Mental Models, Biases & How to Think
Open Graph Description A clear, honest encyclopedia of mental models, cognitive biases and how to think — every entry defined, worked through, and cross-linked.
Detected Technologies
| Technology | Google Analytics Cloudflare |
Technology Google Analytics Cloudflare
HTTP Headers
| Date
| Thu, 20 Aug 2026 11:31:03 GMT |
| Content-type
| text/html; charset=utf-8 |
| Server
| cloudflare |
| Nel
| {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800} |
| Vary
| Accept-Encoding |
| Cache-control
| no-cache, private |
| Set-cookie
| myqsd-session=eyJpdiI6Ijl3akRjYjlvczNtdzVIdnBKT25vR0E9PSIsInZhbHVlIjoiOGN3OTVnc3hwTi9HQ1RZTmhLRXgxV3g1R2xMVHo1Q3lKSHZpU0EwSjIxUzg2UmJJMGFPcHhlVDczZ1c3VnFBT1N1ejhNb3BrYWlqcmtVTTN5aTQyYjBtSzlCNHhFSTRJeEdwcE9Na2N6c0liR2xKL0lPazMwTzJpc0tqTk1lWHciLCJtYWMiOiI5ZDAxOTdhZmY3ZjUzYTc2ZmU4N2M4MTFmZGE4NzcxYTFhOGNhZmZkZmNiYjA2OGMyZTc2ZGE3NTZkNDFlZGU1IiwidGFnIjoiIn0%3D; expires=Thu, 20 Aug 2026 13:31:03 GMT; Max-Age=7200; path=/; httponly; samesite=lax |
| Report-to
| {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=TRnao3Zst45jsbNmZ%2F9anKOS%2F6udThe22Kk8TOc%2FrmY2%2BH5Iv8LxBGf5BzGl42RbKY2kPIbeJKxq1s%2FHmQSppkfboSWFmM3VmgKCTCkhOxelHYBXq9AisyZs3Aci%2FhBUqOtmYfFU9TGkBaOPWQ%3D%3D"}]} |
| Cf-cache-status
| DYNAMIC |
| Content-encoding
| gzip |
| Cf-ray
| a2e111cd3931025f-CDG |
| Alt-svc
| h3=":443"; ma=86400 |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Description | A clear, honest encyclopedia of mental models, cognitive biases and how to think — every entry defined, worked through, and cross-linked. |
| Robots | index,follow |
Date Thu, 20 Aug 2026 11:31:03 GMT
Content-type text/html; charset=utf-8
Server cloudflare
Nel {"report_to":"cf-nel","success_fraction":0.0,"max_age":604800}
Vary Accept-Encoding
Cache-control no-cache, private
Set-cookie myqsd-session=eyJpdiI6Ijl3akRjYjlvczNtdzVIdnBKT25vR0E9PSIsInZhbHVlIjoiOGN3OTVnc3hwTi9HQ1RZTmhLRXgxV3g1R2xMVHo1Q3lKSHZpU0EwSjIxUzg2UmJJMGFPcHhlVDczZ1c3VnFBT1N1ejhNb3BrYWlqcmtVTTN5aTQyYjBtSzlCNHhFSTRJeEdwcE9Na2N6c0liR2xKL0lPazMwTzJpc0tqTk1lWHciLCJtYWMiOiI5ZDAxOTdhZmY3ZjUzYTc2ZmU4N2M4MTFmZGE4NzcxYTFhOGNhZmZkZmNiYjA2OGMyZTc2ZGE3NTZkNDFlZGU1IiwidGFnIjoiIn0%3D; expires=Thu, 20 Aug 2026 13:31:03 GMT; Max-Age=7200; path=/; httponly; samesite=lax
Report-to {"group":"cf-nel","max_age":604800,"endpoints":[{"url":"https://a.nel.cloudflare.com/report/v4?s=TRnao3Zst45jsbNmZ%2F9anKOS%2F6udThe22Kk8TOc%2FrmY2%2BH5Iv8LxBGf5BzGl42RbKY2kPIbeJKxq1s%2FHmQSppkfboSWFmM3VmgKCTCkhOxelHYBXq9AisyZs3Aci%2FhBUqOtmYfFU9TGkBaOPWQ%3D%3D"}]}
Cf-cache-status DYNAMIC
Content-encoding gzip
Cf-ray a2e111cd3931025f-CDG
Alt-svc h3=":443"; ma=86400