Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 185.199.111.153 |
| Server Software | GitHub.com |
| CDN | CDN (HIT) |
| Compression | gzip |
|
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 185.199.111.153
Server Software GitHub.com
CDN CDN (HIT)
Compression gzip
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 | 51.3 ms |
| TCP Connect | 52.1 ms |
| TLS Handshake | 5.4 ms |
| Time To First Byte (TTFB) | 174.4 ms |
| Content Download | 0.3 ms |
| Total Response Time | 174.7 ms |
DNS Lookup 51.3 ms
TCP Connect 52.1 ms
TLS Handshake 5.4 ms
Time To First Byte (TTFB) 174.4 ms
Content Download 0.3 ms
Total Response Time 174.7 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=31556952 |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=31556952
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Mastodon documentation |
| Open Graph Description | Welcome to the Mastodon documentation! |
Title Mastodon documentation
Open Graph Description Welcome to the Mastodon documentation!
HTTP Headers
| Server
| GitHub.com |
| Content-type
| text/html; charset=utf-8 |
| Last-modified
| Wed, 19 Aug 2026 07:25:13 GMT |
| Access-control-allow-origin
| * |
| Strict-transport-security
| max-age=31556952 |
| Etag
| W/"6a855a59-8065" |
| Expires
| Wed, 19 Aug 2026 17:47:27 GMT |
| Cache-control
| max-age=600 |
| Content-encoding
| gzip |
| X-proxy-cache
| MISS |
| X-github-request-id
| 4414:32E081:548989:54F8B1:6A85E9D6 |
| X-github-edge-region
| fra |
| Accept-ranges
| bytes |
| Age
| 0 |
| Date
| Thu, 20 Aug 2026 01:32:27 GMT |
| Via
| 1.1 varnish |
| X-served-by
| cache-par-lfpg1960035-PAR |
| X-cache
| HIT |
| X-cache-hits
| 0 |
| X-timer
| S1787189548.852389,VS0,VE116 |
| Vary
| Accept-Encoding |
| X-fastly-request-id
| 444bc53cee42cd4fdac2ceb9b840f86770cc4f17 |
| Content-length
| 8602 |
Meta Tags
Server GitHub.com
Content-type text/html; charset=utf-8
Last-modified Wed, 19 Aug 2026 07:25:13 GMT
Access-control-allow-origin *
Strict-transport-security max-age=31556952
Etag W/"6a855a59-8065"
Expires Wed, 19 Aug 2026 17:47:27 GMT
Cache-control max-age=600
Content-encoding gzip
X-proxy-cache MISS
X-github-request-id 4414:32E081:548989:54F8B1:6A85E9D6
X-github-edge-region fra
Accept-ranges bytes
Age 0
Date Thu, 20 Aug 2026 01:32:27 GMT
Via 1.1 varnish
X-served-by cache-par-lfpg1960035-PAR
X-cache HIT
X-cache-hits 0
X-timer S1787189548.852389,VS0,VE116
Vary Accept-Encoding
X-fastly-request-id 444bc53cee42cd4fdac2ceb9b840f86770cc4f17
Content-length 8602
