If you are not sure if the website you want to visit is safe, you can check it out here. Enter the address (url) of the website and see the invisible elements, such as a header or meta data.
site address:www.testberichte.de/imgs/z_imgs/34.gif redirected to: www.testberichte.de/imgs/z_imgs/34.gi...
Url ContentGraphics Interchange Format
MIME Type / Internet Media Typeimage/gif
MIME Type image
File Extension.gif
More Details (link to:)Wikipedia: Graphics Interchange Format
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Header

HTTP/1.1 301 Moved Permanently
Server nginx
Date Mon, 19 Feb 2018 08:11:46 GMT
Content-Type text/html
Content-Length 178
Connection keep-alive
Location htt????/www.testberichte.de/imgs/z_imgs/34.gif
HTTP/1.1 200 OK
Server nginx
Date Mon, 19 Feb 2018 08:09:08 GMT
Content-Type image/gif
Content-Length 2384
Connection keep-alive
Last-Modified Thu, 21 Feb 2008 09:26:54 GMT
Cache-Control max-age=2592000
Expires Tue, 20 Mar 2018 19:39:55 GMT
X-Cache-Status HIT
X-Handled-By app-cache-01
Cache-Control public
Accept-Ranges bytes

Load Info

page size2384
load time (s)0.115388
redirect count1
speed download0
server IP62.146.104.29


* all occurrences of the string "http://" have been changed to "htt???/"