How do search engines identify if a site is using mod rewrite to display dynamic pages as HTML pages. I was told that by a friend that in HTTP Server Headers if your ETag has colun ":" (7025801ab38c71:465) sign then its a dynamic page displayed as HTML. If your ETag has hyphens "-" (30807c7-ca4b-4599f9b1) then its html page. Is this true, or is there any other way to judge this? .
Can't say for sure but I just ran a page from my site through a header checker and didn't see that Anyways, pages rank just fine so I don't see it as much of an issue on way or the other
It's impossible to identify because it's all done server-side. Every visitor (or spider) sees the same thing. It could do a header status lookup to see what's powering it, but it's really impossible to see if it's being rewritten or not.
http://www.xml.com/lpt/a/1663 That might help, look for "etag" I've had some weird stuff with Yahoo! not processing things correctly. We use a custom in-house templating system and it was doing some funky stuff...not sure why.
ETag can be seen in HTTP header only when you are requesting HTML webpage. If you are requesting a PHP page ETag will not come in header. Try performing an HTTP check on site that has static pages and compare it with dynamic ones. You will have the answer. My question is impact of SEO for different ETag types.
No adverse ones that I have ever heard of. Like I said we use mod-rewrite on ours and clients sites with no ill effects Why would U think there may be?