Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 193.174.19.232 |
| Server Software | waitress |
|
🔒 🟡 Mixed Content (6 HTTP resources) | The page is served over HTTPS but loads 6 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 🔵 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 193.174.19.232
Server Software waitress
🔒 🟡 Mixed Content (6 HTTP resources) The page is served over HTTPS but loads 6 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 🔵 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://pik-potsdam.de:443 | 302 | HTTP/2 302 |
| 2 | https://www.pik-potsdam.de/ | 302 | HTTP/2 302 |
| 3 | https://www.pik-potsdam.de/en | 200 | HTTP/2 200 |
#1 URL https://pik-potsdam.de:443
HTTP Status Code 302
Status HTTP/2 302
#2 URL https://www.pik-potsdam.de/
HTTP Status Code 302
Status HTTP/2 302
#3 URL https://www.pik-potsdam.de/en
HTTP Status Code 200
Status HTTP/2 200
Performance
| DNS Lookup | 0.4 ms |
| TCP Connect | 19.3 ms |
| TLS Handshake | 22.7 ms |
| Time To First Byte (TTFB) | 61.3 ms |
| Content Download | 147.1 ms |
| Total Response Time | 208.4 ms |
DNS Lookup 0.4 ms
TCP Connect 19.3 ms
TLS Handshake 22.7 ms
Time To First Byte (TTFB) 61.3 ms
Content Download 147.1 ms
Total Response Time 208.4 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✘ Not configured |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ SAMEORIGIN |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✘ Not configured
CSP ⚠ Not configured
X-Frame-Options ✔ SAMEORIGIN
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Potsdam Institute for Climate Impact Research |
| Canonical | https://www.pik-potsdam.de/en |
| Open Graph Title | Potsdam Institute for Climate Impact Research |
| Open Graph Image | https://www.pik-potsdam.de/@@site-logo/logo.png |
| Twitter Card | summary |
Title Potsdam Institute for Climate Impact Research Canonical https://www.pik-potsdam.de/en Open Graph Title Potsdam Institute for Climate Impact Research Open Graph Image https://www.pik-potsdam.de/@@site-logo/logo.png Twitter Card summary Detected Technologies
| Technology | Bootstrap jQuery Google Analytics PHP |
Technology Bootstrap jQuery Google Analytics PHP
HTTP Headers
| Accept-ranges
| bytes |
| Age
| 3552 |
| Cache-control
| max-age=0, s-maxage=3600, must-revalidate |
| Content-language
| en |
| Content-type
| text/html;charset=utf-8 |
| Date
| Mon, 20 Jul 2026 20:45:50 GMT |
| Expires
| Fri, 22 Jul 2016 20:45:50 GMT |
| Last-modified
| Fri, 17 Jul 2026 11:50:16 GMT |
| Server
| waitress |
| Via
| waitress, 1.1 se121 (Varnish/7.7) |
| X-cache-operation
| plone.app.caching.moderateCaching |
| X-cache-rule
| plone.content.itemView |
| X-frame-options
| SAMEORIGIN |
| X-powered-by
| Zope (www.zope.dev), Python (www.python.org) |
| X-varnish
| 973635918 963480757 |
| Content-length
| 283749 |
Meta Tags
| Content-Type | text/html; charset=UTF-8 |
| Viewport | width=device-width, initial-scale=1 |
| Generator | Plone - http://plone.com |
Accept-ranges bytes
Age 3552
Cache-control max-age=0, s-maxage=3600, must-revalidate
Content-language en
Content-type text/html;charset=utf-8
Date Mon, 20 Jul 2026 20:45:50 GMT
Expires Fri, 22 Jul 2016 20:45:50 GMT
Last-modified Fri, 17 Jul 2026 11:50:16 GMT
Server waitress
Via waitress, 1.1 se121 (Varnish/7.7)
X-cache-operation plone.app.caching.moderateCaching
X-cache-rule plone.content.itemView
X-frame-options SAMEORIGIN
X-powered-by Zope (www.zope.dev), Python (www.python.org)
X-varnish 973635918 963480757
Content-length 283749
