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Thank you Martign! That makes sense. I'm excited to see how using the HREFLANG markup helps with multi-lingual users.

There is an old webmaster world thread that explains how to hide the robots.txt file from browsers.... not sure why one would do this however.... http://www.webmasterworld.com/forum93/74.htm Perhaps they are doing something like this?

Thank you very much Robert for your thorough follow-up. I am humbled at the insights you offered, and am very glad I asked about this. It is much more detailed than I was expecting, and definitely not something to make a hasty, uninformed decision on.

If you're using the WordPress SEO by Yoast you can easily do this by adding %%page%% to your title template. It appears as "Page 2 of 5".