Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 104.16.253.120 |
| Server Software | cloudflare |
| CDN | Cloudflare |
| Compression | gzip |
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🔄 🟡 Long Redirect Chain | There are 4 redirects, which may affect SEO and performance. |
|
🔒 🟡 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 104.16.253.120
Server Software cloudflare
CDN Cloudflare
Compression gzip
🔄 🟡 Long Redirect Chain There are 4 redirects, which may affect SEO and performance.
🔒 🟡 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).
Redirect Chain
| # | URL | HTTP Status Code | Status |
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| 2 | https://readthedocs.org | 302 | HTTP/2 302 |
| 3 | https://app.readthedocs.org/welcome/ | 302 | HTTP/2 302 |
| 4 | https://about.readthedocs.com/?ref=app.readthedocs.org | 200 | HTTP/2 200 |
#1 URL https://readthedocs.io:443
HTTP Status Code 302
Status HTTP/2 302
#2 URL https://readthedocs.org
HTTP Status Code 302
Status HTTP/2 302
#3 URL https://app.readthedocs.org/welcome/
HTTP Status Code 302
Status HTTP/2 302
#4 URL https://about.readthedocs.com/?ref=app.readthedocs.org
HTTP Status Code 200
Status HTTP/2 200
Performance
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| TCP Connect | 7.6 ms |
| TLS Handshake | 7.5 ms |
| Time To First Byte (TTFB) | 42 ms |
| Content Download | 0.3 ms |
| Total Response Time | 42.3 ms |
DNS Lookup 6.3 ms
TCP Connect 7.6 ms
TLS Handshake 7.5 ms
Time To First Byte (TTFB) 42 ms
Content Download 0.3 ms
Total Response Time 42.3 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ⚠ Not configured |
| X-Content-Type-Options | ✔ nosniff |
| Referrer Policy | no-referrer-when-downgrade |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ⚠ Not configured
X-Content-Type-Options ✔ nosniff
Referrer Policy no-referrer-when-downgrade
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Full featured documentation deployment platform - Read the Docs |
| Meta Description | Read the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more. |
| Open Graph Title | Full featured documentation deployment platform |
| Open Graph Description | Read the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more. |
| Open Graph Image | /images/logo-opengraph.png |
| Twitter Title | Full featured documentation deployment platform |
| Twitter Description | Read the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more. |
| Twitter Image | /images/logo-opengraph.png |
Title Full featured documentation deployment platform - Read the Docs Meta Description Read the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more. Open Graph Title Full featured documentation deployment platform Open Graph Description Read the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more. Open Graph Image /images/logo-opengraph.png Twitter Title Full featured documentation deployment platform Twitter Description Read the Docs is a documentation building and hosting platform aimed at helping developers creating documentation from code with versioned documentation, integrated search, pull request previews and more. Twitter Image /images/logo-opengraph.png Detected Technologies
| Technology | Google Analytics Cloudflare Nginx |
Technology Google Analytics Cloudflare Nginx
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