shammer https://blog.hatena.ne.jp/shammer/ Shammer's Philosophy https://shammerism.hatenadiary.com/ HTTP Debian The command line tools, curl has a -v option. This is very useful because all HTTP request and response header displays. The response header value is depends on the web server configuration. This is just sample to Debian squeeze apache response. $ curl -v http://XXX.XXX.XXX.XXX *1390724073* About to… 190 <iframe src="https://hatenablog-parts.com/embed?url=https%3A%2F%2Fshammerism.hatenadiary.com%2Fentry%2F20131022%2Fp1" title="How to check the HTTP header? - Shammer&#39;s Philosophy" class="embed-card embed-blogcard" scrolling="no" frameborder="0" style="display: block; width: 100%; height: 190px; max-width: 500px; margin: 10px 0px;"></iframe> Hatena Blog https://hatena.blog 2013-10-22 00:00:00 rich https://shammerism.hatenadiary.com/entry/20131022/p1 1.0 100%