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Hi Shaun and Alan

Thanks for responses. I received Aaron's reply.

However, he did not answer the critical question whether the use of the "meta refresh" tag penalises SEO performance as he indicated that he is not an SEO expert. Aaron suggested I post the question here to obtain a more authoritative answer.

Mark

Most of the pages on our site "Accessible to Engines" test in the SEOmoz reports. We cannot find any problem with the code and it's largely identical to the few pages that come up with an "A" score. One item that may be a reason is that we use

meta http-equiv="refresh" content="600;

For example in www.weatherzone.com.au/nsw/sydney/sydney

We use this to fresh dynamic content on our site. Do search engines penalise pages that use this form of page refresh?

Alternatively, is there a known bug in the SEOmoz "Accessible to Engines" report?

Many thanks