Time spent downloading a page (in milliseconds)

Selected answers from the Dumb SEO Questions Facebook & G+ community.

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  Alan Bleiweiss: Ideal avg 200 - 300 milliseconds. Crawl abandonment can happen when avg hits 2 seconds.
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  Michael Stricker: Avg all pages crawled or recrawled in the period
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  Neil Cheesman: as a thought - not sure if you can display (Embed) images from off-site onto a website ie.. as in a youtube video....
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  Micah Fisher-Kirshner: Note that when referring to "pages", it`s not limited to html pages.
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  Jenny Halasz: Also watch for trends... normally at 100 ms, but suddenly jumped to 400ms? You`ve got a problem.
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  Alan Bleiweiss: I
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  Neil Cheesman: What to do with `large images` - in my niche for example - large production or rehearsal images.... sometimes 10-30 of them...
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  Jenny Halasz: I want to share a theory that may be unpopular with regard to large images. Before I do, I want to say that Google has specifically debunked the idea that this is a thing, but I don`t believe them... I believe that there are times when a larger or higher resolution image is necessary for user experience, and that should override search optimization concerns. I truly believe that there are some instances in which a "sliding scale" is used, and let me explain why I think that. Some industries - photography for example - need to use pure images that aren`t heavily compressed. They need to have higher DPI than the average website because imagery and clarity is what they are selling. If all photography sites use higher than normal image quality (and larger than normal image sizes), then Google can`t apply the same restrictions on those sites that they do a site about software, or puppies, or there would be nothing relevant to show in search results. So I believe that while they may not slide the scale officially, needing something to show in the search results has the same effect. However, most modern browsers aren`t capable of showing truly high quality images, so some compression and size adjustment is not going to make a difference in what the user ultimately sees on their browser. So I`m not advocating that you should upload raw images. You should still compress them some, and size them down so that they fit on a standard 20 inch or so monitor without scrolling. And don`t resize them in the code - shrink the image - because that`s just asking for load time issues. Long story short - use images that "push the envelope" of what search engines will index, and don`t worry so much that your image pages aren`t optimized for speed. Optimize the rest of your site for speed, use thumbnails that can be zoomed in, and let your high quality, zoomed in image pages and galleries be as they are.