When I cropped the image to a landscape orientation, the flowers were cut off. When I kept the whole image, there was no room left to place the title. In such cases, instead of just looking at the ...
Inspect status, content type, redirects, cache headers, X-Robots-Tag and other useful HTTP response headers for a public URL. The checker sends a safe HEAD request, falling back to a small GET request ...
The default value is cache-control: public, max-age=0, must-revalidate which instructs both the CDN and the browser not to cache. Semi-static (product pages, blogs, marketing) max-age=120, ...
So smart attackers will send this header to trick the server into using a fake / spoofed IP address and you should NOT trust this header without checking the IP ...
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