This is a really quick “howto” guide based on experience in the office, where we had pages and queries that were unable to run properly, purely because of the number of queries that we were trying to pass to MySQL at once.

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Robots.txt is a very useful and underutilised tool that allows web designers to control how their site handles spiders from search engines. The majority of search engine spiders take robots.txt and will parse the instructions prior to indexing a website.

Using robots.txt you can ensure that spiders only index certain parts of your website, and you can further specify as to which spiders are allowed to do so, and what pages they index.

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Hotlinking to images on another domain is something that is frowned upon. Leeching other peoples bandwidth isn’t a polite thing to do, so if you find someone hotlinking images from your site, what can you do?

Well, you can edit your .htaccess file and have a little fun with them!

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