Tailieuvanhoc.net
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Server | Apache |
Last-Modified | Thu, 17 Mar 2016 13: |
ETag | "22e0e3e-73c9-52e3e7 |
Accept-Ranges | bytes |
Cache-Control | max-age=3600, must-r |
Expires | Thu, 17 Mar 2016 13: |
Vary | Accept-Encoding,Cook |
Content-Encoding | gzip |
Keep-Alive | timeout=5, max=300 |
Connection | Keep-Alive |
Content-Type | text/html; charset=U |