Technical Information
| HTTP Status Code | 200 |
| HTTP Version | HTTP/1.1 |
| HTTPS | ✔ Available |
| IP Address | 129.206.13.71 |
| Server Software | nginx |
| Compression | gzip |
|
🔒 🟡 Mixed Content (2 HTTP resources) | The page is served over HTTPS but loads 2 resource(s) over HTTP. This may be blocked in modern browsers. |
|
ℹ 🔵 Missing Content Security Policy | CSP is not configured. It helps prevent XSS attacks and content injection. |
HTTP Status Code 200
HTTP Version HTTP/1.1
HTTPS ✔ Available
IP Address 129.206.13.71
Server Software nginx
Compression gzip
🔒 🟡 Mixed Content (2 HTTP resources) The page is served over HTTPS but loads 2 resource(s) over HTTP. This may be blocked in modern browsers.
ℹ 🔵 Missing Content Security Policy CSP is not configured. It helps prevent XSS attacks and content injection.
Redirect Chain
| # | URL | HTTP Status Code | Status |
| 1 | https://uni-heidelberg.de:443 | 301 | HTTP/1.1 301 Moved Permanently |
| 2 | https://www.uni-heidelberg.de/ | 301 | HTTP/1.1 301 Moved Permanently |
| 3 | https://www.uni-heidelberg.de/en | 200 | HTTP/1.1 200 OK |
#1 URL https://uni-heidelberg.de:443
HTTP Status Code 301
Status HTTP/1.1 301 Moved Permanently
#2 URL https://www.uni-heidelberg.de/
HTTP Status Code 301
Status HTTP/1.1 301 Moved Permanently
#3 URL https://www.uni-heidelberg.de/en
HTTP Status Code 200
Status HTTP/1.1 200 OK
Performance
| DNS Lookup | 0.4 ms |
| TCP Connect | 14.3 ms |
| TLS Handshake | 28.2 ms |
| Time To First Byte (TTFB) | 59.6 ms |
| Content Download | 15.4 ms |
| Total Response Time | 75 ms |
DNS Lookup 0.4 ms
TCP Connect 14.3 ms
TLS Handshake 28.2 ms
Time To First Byte (TTFB) 59.6 ms
Content Download 15.4 ms
Total Response Time 75 ms
Security
| HTTPS | ✔ Enabled |
| HSTS | ✔ max-age=63072000 |
| CSP | ⚠ Not configured |
| X-Frame-Options | ✔ deny |
| X-Content-Type-Options | ⚠ Not configured |
| HTTP/2 | ⚠ HTTP/1.1 |
HTTPS ✔ Enabled
HSTS ✔ max-age=63072000
CSP ⚠ Not configured
X-Frame-Options ✔ deny
X-Content-Type-Options ⚠ Not configured
HTTP/2 ⚠ HTTP/1.1
SEO Quick Check
| Title | Heidelberg University - Zukunft seit 1386 |
| Meta Description | |
| Canonical | https://www.uni-heidelberg.de/en |
| Robots Meta | index, follow, max-image-preview:large |
| Open Graph Title | Heidelberg University - Heidelberg University |
| Twitter Card | summary_large_image |
Title Heidelberg University - Zukunft seit 1386
Meta Description
Canonical https://www.uni-heidelberg.de/en
Robots Meta index, follow, max-image-preview:large
Open Graph Title Heidelberg University - Heidelberg University
Twitter Card summary_large_image
Detected Technologies
| Technology | Google Analytics Nginx Node.js |
Technology Google Analytics Nginx Node.js
HTTP Headers
| Server
| nginx |
| Date
| Tue, 28 Jul 2026 17:01:42 GMT |
| Content-type
| text/html; charset=utf-8 |
| Content-length
| 33317 |
| X-powered-by
| Express |
| X-frame-options
| deny |
| Cache-control
| private |
| Vary
| Accept-Encoding |
| Content-encoding
| gzip |
| X-varnish
| 181633259 184910195 |
| Age
| 1530 |
| Via
| 1.1 frontend-varnish-276-q2cjk (Varnish/7.7) |
| Accept-ranges
| bytes |
| X-varnish-cache
| HIT |
| Strict-transport-security
| max-age=63072000 |
| Set-cookie
| d60c1da73e120cb71d18e08fbc35afe3=5a926258174e892e36d5530d523bc160; path=/; HttpOnly; Secure; SameSite=None |
Meta Tags
| Viewport | width=device-width |
| Theme-color | #000000 |
| X-UA-Compatible | IE=edge |
| Title | Heidelberg University |
| Description | |
| Robots | index, follow, max-image-preview:large |
| Referrer | origin |
| Article:published_time | 2018-09-25T11:39:46+02:00 |
| Article:modified_time | 2026-07-28T08:13:32+02:00 |
Server nginx
Date Tue, 28 Jul 2026 17:01:42 GMT
Content-type text/html; charset=utf-8
Content-length 33317
X-powered-by Express
X-frame-options deny
Cache-control private
Vary Accept-Encoding
Content-encoding gzip
X-varnish 181633259 184910195
Age 1530
Via 1.1 frontend-varnish-276-q2cjk (Varnish/7.7)
Accept-ranges bytes
X-varnish-cache HIT
Strict-transport-security max-age=63072000
Set-cookie d60c1da73e120cb71d18e08fbc35afe3=5a926258174e892e36d5530d523bc160; path=/; HttpOnly; Secure; SameSite=None
