Request to Hubpages support to check the 'if modified since' feature

  1. minso profile image76
    minsoposted 5 years ago

    I was looking at webmaster guidelines and I came across the following:

    Technical Guideline from Google

    "Make sure your web server supports the If-Modified-Since HTTP header. This feature allows your web server to tell Google whether your content has changed since we last crawled your site. Supporting this feature saves you bandwidth and overhead."

    Somewhere in the Google forum, I also read that if the above is not supported, Google bot may take more time to crawl and index the new pages (as it does not know which pages are changed and so need to crawl all every time).

    I found a tool on the web to check this and got the following response about hubpages and my subdomain.

    (url input given as

    This website does not support the if modified since http header.

    Technical stuff:

    This tool checked your HTTP headers and received this response ...
    Server Response HTTP/1.1 200 OK
    HTTP/1.1 301 Moved Permanently
    Server: nginx
    Date: Fri, 07 Oct 2011 17:54:22 GMT
    Content-Type: text/html
    Content-Length: 178
    Connection: keep-alive

    HTTP/1.1 200 OK
    Server: nginx
    Date: Fri, 07 Oct 2011 17:54:22 GMT
    Content-Type: text/html
    Transfer-Encoding: chunked
    Connection: keep-alive
    Cache-Control: no-cacheThere does not appear to be a "last modified header response"
    Therefore this tool has determined that this URL does not support if modified since.
    Web hosts who do support If Modified Since...

    Can you please check up if this is true and if so, whether it can be corrected? Btw, when I checked up the same for some other similar domains, the tool says Yes for some.

    I did experience delays in indexing for hubs (in comparison with some other article sites) especially in the recent times.
    My doubt is whether Google (changed) algorithm is seeing this problem as a non-compliance and so gives preference to sites which comply with this feature.

    I am sorry if I am wrong in this, but if at all this is a problem, correction will help every one. Thank you.

    (I was trying to post the link to the tool but got a warning that links are not allowed.)