Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 185.199.110.153 |
| Server Software | GitHub.com |
| CDN | CDN (HIT) |
| Compression | gzip |
|
🔒 🟡 Mixed Content (1 HTTP resources) | The page is served over HTTPS but loads 1 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. |
|
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 185.199.110.153
Server Software GitHub.com
CDN CDN (HIT)
Compression gzip
🔒 🟡 Mixed Content (1 HTTP resources) The page is served over HTTPS but loads 1 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.
ℹ 🔵 Missing X-Frame-Options The site can be embedded in iframes by third parties (clickjacking risk).
Performance
| DNS Lookup | 4.1 ms |
| TCP Connect | 4.9 ms |
| TLS Handshake | 4.9 ms |
| Time To First Byte (TTFB) | 12.3 ms |
| Content Download | 0.2 ms |
| Total Response Time | 12.5 ms |
DNS Lookup 4.1 ms
TCP Connect 4.9 ms
TLS Handshake 4.9 ms
Time To First Byte (TTFB) 12.3 ms
Content Download 0.2 ms
Total Response Time 12.5 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
Detected Technologies
| Technology | Google Analytics |
Technology Google Analytics
HTTP Headers
| Server
| GitHub.com |
| Content-type
| text/html; charset=utf-8 |
| X-origin-cache
| HIT |
| Last-modified
| Tue, 21 Jul 2026 22:17:23 GMT |
| Access-control-allow-origin
| * |
| Etag
| W/"6a5feff3-48a2" |
| Expires
| Tue, 21 Jul 2026 22:31:25 GMT |
| Cache-control
| max-age=600 |
| Content-encoding
| gzip |
| X-proxy-cache
| MISS |
| X-github-request-id
| 2B5E:23E73D:B6861:B9A2E:6A5FF0E5 |
| Accept-ranges
| bytes |
| Date
| Wed, 22 Jul 2026 01:35:49 GMT |
| Via
| 1.1 varnish |
| Age
| 535 |
| X-served-by
| cache-par-lfpg1960071-PAR |
| X-cache
| HIT |
| X-cache-hits
| 1 |
| X-timer
| S1784684149.053397,VS0,VE1 |
| Vary
| Accept-Encoding |
| X-fastly-request-id
| 5bf1d16ad0a71a0b79a5c2c7c3e8cf3a89ad7485 |
| Content-length
| 4828 |
Meta Tags
| Viewport | width=device-width,initial-scale=1.0 |
| Description | A language empowering everyone to build reliable and efficient software. |
| Msapplication-TileColor | #ffffff |
| Msapplication-config | /static/images/browserconfig.xml?v=ngJW8jGAmR |
| Theme-color | #ffffff |
Server GitHub.com
Content-type text/html; charset=utf-8
X-origin-cache HIT
Last-modified Tue, 21 Jul 2026 22:17:23 GMT
Access-control-allow-origin *
Etag W/"6a5feff3-48a2"
Expires Tue, 21 Jul 2026 22:31:25 GMT
Cache-control max-age=600
Content-encoding gzip
X-proxy-cache MISS
X-github-request-id 2B5E:23E73D:B6861:B9A2E:6A5FF0E5
Accept-ranges bytes
Date Wed, 22 Jul 2026 01:35:49 GMT
Via 1.1 varnish
Age 535
X-served-by cache-par-lfpg1960071-PAR
X-cache HIT
X-cache-hits 1
X-timer S1784684149.053397,VS0,VE1
Vary Accept-Encoding
X-fastly-request-id 5bf1d16ad0a71a0b79a5c2c7c3e8cf3a89ad7485
Content-length 4828
