Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 185.199.108.153 |
| Server Software | GitHub.com |
| CDN | CDN (HIT) |
| 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 185.199.108.153
Server Software GitHub.com
CDN CDN (HIT)
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 | 7.5 ms |
| TCP Connect | 8.6 ms |
| TLS Handshake | 6.9 ms |
| Time To First Byte (TTFB) | 125.5 ms |
| Content Download | 0.1 ms |
| Total Response Time | 125.5 ms |
DNS Lookup 7.5 ms
TCP Connect 8.6 ms
TLS Handshake 6.9 ms
Time To First Byte (TTFB) 125.5 ms
Content Download 0.1 ms
Total Response Time 125.5 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
| Title | Redirecting… |
| Canonical | https://www.selenium.dev/ |
Title Redirecting…
Canonical https://www.selenium.dev/
HTTP Headers
| Server
| GitHub.com |
| Content-type
| text/html; charset=utf-8 |
| X-origin-cache
| HIT |
| Last-modified
| Fri, 12 Sep 2025 09:40:57 GMT |
| Access-control-allow-origin
| * |
| Etag
| W/"68c3eaa9-165" |
| Expires
| Wed, 26 Aug 2026 10:10:39 GMT |
| Cache-control
| max-age=600 |
| Content-encoding
| gzip |
| X-proxy-cache
| HIT |
| X-github-request-id
| 1BBE:15BD:EE91A82:F065405:6A8EBB53 |
| X-github-edge-region
| fra |
| Accept-ranges
| bytes |
| Age
| 0 |
| Date
| Wed, 26 Aug 2026 14:39:27 GMT |
| Via
| 1.1 varnish |
| X-served-by
| cache-par-lfpb1150062-PAR |
| X-cache
| HIT |
| X-cache-hits
| 0 |
| X-timer
| S1787755167.240446,VS0,VE108 |
| Vary
| Accept-Encoding |
| X-fastly-request-id
| 39a5ecfe5499fc2cf962d73f5d728a0570985d64 |
| Content-length
| 213 |
Meta Tags
| Refresh | 0; url=https://www.selenium.dev/ |
Server GitHub.com
Content-type text/html; charset=utf-8
X-origin-cache HIT
Last-modified Fri, 12 Sep 2025 09:40:57 GMT
Access-control-allow-origin *
Etag W/"68c3eaa9-165"
Expires Wed, 26 Aug 2026 10:10:39 GMT
Cache-control max-age=600
Content-encoding gzip
X-proxy-cache HIT
X-github-request-id 1BBE:15BD:EE91A82:F065405:6A8EBB53
X-github-edge-region fra
Accept-ranges bytes
Age 0
Date Wed, 26 Aug 2026 14:39:27 GMT
Via 1.1 varnish
X-served-by cache-par-lfpb1150062-PAR
X-cache HIT
X-cache-hits 0
X-timer S1787755167.240446,VS0,VE108
Vary Accept-Encoding
X-fastly-request-id 39a5ecfe5499fc2cf962d73f5d728a0570985d64
Content-length 213
