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if-modified-since http header


silklink

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Hi

 

I have searched Google and within osCommerce, but I don't think this is covered yet.

 

Does anyone know if osCommerce has the ability to handle Google's http header request (GET) for 'if-modified-since'?

 

Basically, Google will send this request to your currently indexed pages to determine if they have been updated. If not, a 304 code is returned and Google moves on - no change. If so, then a 200 code is sent along with the requested page.

 

However, I think the header would have to be handled by PHP rather than within Apache so that each page can grab its content and, importantly, the update date from the database. I guess that Apache would simply look at the date of the document if it were a hard coded, non-dynamic page of html.

 

Would appreciate some feedback on this

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  • 2 weeks later...

A bit more on this topic found out...

 

When sessions are used with PHP, the default setting is for the headers to be set to no-cache and these are sent out after starting the session. However they can be modified to, for example, a public setting. I haven't really paid much attention to these headers until now, but I think they are quite important in SEO terms as well as helping clients to load pages a bit quicker next time visited, etc.

 

Do you think that Header Tags SEO might cater for this? I have an older version loaded onto my sites. I've had a read of the latest version which has gone through many recent changes but there doesn't appear to be anything obvious on this topic

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  • 2 years later...

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