Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 18.244.28.41 |
| Server Software | nginx |
| CDN | CDN (Hit from cloudfront) |
| Compression | gzip |
|
🔒 🟡 Mixed Content (2 HTTP resources) | The page is served over HTTPS but loads 2 resource(s) over HTTP. This may be blocked in modern browsers. |
|
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. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 18.244.28.41
Server Software nginx
CDN CDN (Hit from cloudfront)
Compression gzip
🔒 🟡 Mixed Content (2 HTTP resources) The page is served over HTTPS but loads 2 resource(s) over HTTP. This may be blocked in modern browsers.
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.
Performance
| DNS Lookup | 16.7 ms |
| TCP Connect | 17.5 ms |
| TLS Handshake | 3.9 ms |
| Time To First Byte (TTFB) | 24.9 ms |
| Content Download | 0.2 ms |
| Total Response Time | 25.1 ms |
DNS Lookup 16.7 ms
TCP Connect 17.5 ms
TLS Handshake 3.9 ms
Time To First Byte (TTFB) 24.9 ms
Content Download 0.2 ms
Total Response Time 25.1 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ DENY |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | same-origin |
| Permissions Policy | ✔ Configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ✔ DENY
X-Content-Type-Options ✔ nosniff
Referrer Policy same-origin
Permissions Policy ✔ Configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Calisphere: The deeper you look, the more you discover. |
| Canonical | https://calisphere.org/ |
| Open Graph Image | /calisphere_images/photo_logo.jpg |
| Twitter Card | summary_large_image |
| Twitter Title | Calisphere: The deeper you look, the more you discover. |
Title Calisphere: The deeper you look, the more you discover. Canonical https://calisphere.org/ Open Graph Image /calisphere_images/photo_logo.jpg Twitter Card summary_large_image Twitter Title Calisphere: The deeper you look, the more you discover. Detected Technologies
| Technology | Google Analytics Nginx PHP Matomo |
Technology Google Analytics Nginx PHP Matomo
HTTP Headers
| Content-Type
| text/html; charset=utf-8 |
| Content-Length
| 3916 |
| Connection
| keep-alive |
| Date
| Thu, 20 Aug 2026 04:26:02 GMT |
| Cross-Origin-Opener-Policy
| same-origin |
| Server
| nginx |
| Content-Encoding
| gzip |
| X-Frame-Options
| DENY |
| Permissions-Policy
| accelerometer=(), ambient-light-sensor=(), autoplay=(), camera=(), fullscreen=(self), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), midi=(), payment=(), sync-xhr=(*) |
| X-Content-Type-Options
| nosniff |
| Referrer-Policy
| same-origin |
| Vary
| Accept-Encoding |
| X-Cache
| Hit from cloudfront |
| Via
| 1.1 8d026ccac4c91208a8ba78f703fe9354.cloudfront.net (CloudFront) |
| X-Amz-Cf-Pop
| CDG52-P5 |
| X-Amz-Cf-Id
| Jtj_tMpGFNlSsCoKugfvXMmSMOp2SkFobiWbT8x_0S35qNR2WZWqmA== |
| Age
| 91 |
Meta Tags
| Google-site-verification | zswkUoo5r_a8EcfZAPG__mc9SyeH4gX4x3_cHsOwwmk |
| Viewport | width=device-width, initial-scale=1.0, user-scalable=yes |
Content-Type text/html; charset=utf-8
Content-Length 3916
Connection keep-alive
Date Thu, 20 Aug 2026 04:26:02 GMT
Cross-Origin-Opener-Policy same-origin
Server nginx
Content-Encoding gzip
X-Frame-Options DENY
Permissions-Policy accelerometer=(), ambient-light-sensor=(), autoplay=(), camera=(), fullscreen=(self), geolocation=(), gyroscope=(), magnetometer=(), microphone=(), midi=(), payment=(), sync-xhr=(*)
X-Content-Type-Options nosniff
Referrer-Policy same-origin
Vary Accept-Encoding
X-Cache Hit from cloudfront
Via 1.1 8d026ccac4c91208a8ba78f703fe9354.cloudfront.net (CloudFront)
X-Amz-Cf-Pop CDG52-P5
X-Amz-Cf-Id Jtj_tMpGFNlSsCoKugfvXMmSMOp2SkFobiWbT8x_0S35qNR2WZWqmA==
Age 91
