Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 207.244.121.250 |
| Server Software | nginx |
|
🔒 🟡 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). |
|
ℹ 🔵 No Compression | The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 207.244.121.250
Server Software nginx
🔒 🟡 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).
ℹ 🔵 No Compression The server does not use Gzip or Brotli. Enable compression to reduce bandwidth usage.
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://realclimate.org:443 | 301 | HTTP/2 301 |
| 2 | https://www.realclimate.org/ | 200 | HTTP/2 200 |
#1 URL https://realclimate.org:443
HTTP Status Code 301
Status HTTP/2 301
#2 URL https://www.realclimate.org/
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 152.3 ms |
| TCP Connect | 249.5 ms |
| TLS Handshake | 209.6 ms |
| Time To First Byte (TTFB) | 656.9 ms |
| Content Download | 234.6 ms |
| Total Response Time | 891.5 ms |
DNS Lookup 152.3 ms
TCP Connect 249.5 ms
TLS Handshake 209.6 ms
Time To First Byte (TTFB) 656.9 ms
Content Download 234.6 ms
Total Response Time 891.5 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 | RealClimate: Frontpage |
| Meta Description | RealClimate:Climate science from climate scientists... |
| Canonical | https://www.realclimate.org/ |
| Robots Meta | max-image-preview:large |
| Open Graph Title | Frontpage |
| Open Graph Description | |
| Open Graph Image | https://www.realclimate.org/wp-content/plugins/wp-ogp/def... |
| Twitter Card | summary |
| Twitter Title | RealClimate: Frontpage |
| Twitter Description | RealClimate:Climate science from climate scientists... |
Title RealClimate: Frontpage Meta Description RealClimate:Climate science from climate scientists... Canonical https://www.realclimate.org/ Robots Meta max-image-preview:large Open Graph Title Frontpage Open Graph Description Open Graph Image https://www.realclimate.org/wp-content/plugins/wp-ogp/def... Twitter Card summary Twitter Title RealClimate: Frontpage Twitter Description RealClimate:Climate science from climate scientists... Detected Technologies
| Technology | WordPress jQuery Google Analytics Google Tag Manager Nginx PHP |
Technology WordPress jQuery Google Analytics Google Tag Manager Nginx PHP
HTTP Headers
| Server
| nginx |
| Date
| Tue, 21 Jul 2026 13:45:39 GMT |
| Content-type
| text/html; charset=UTF-8 |
| Last-modified
| Tue, 21 Jul 2026 11:51:42 GMT |
Meta Tags
| Viewport | width=device-width, initial-scale=1 |
| Description | RealClimate:Climate science from climate scientists... |
| Robots | max-image-preview:large |
| Google-site-verification | 5-5cpEuryTX8bKt_pnL8bRcqfVflejqKS-2UK8aSA3c |
| Generator | WP Rocket 3.23 |
| Article:published_time | 2021-08-11T15:22:57+00:00 |
| Article:modified_time | 2021-08-11T15:22:58+00:00 |
| Image_src |  |
| Msapplication-TileImage |  |
Server nginx
Date Tue, 21 Jul 2026 13:45:39 GMT
Content-type text/html; charset=UTF-8
Last-modified Tue, 21 Jul 2026 11:51:42 GMT
