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1

The first question I'd have is if you can identify the source leading to these error pages? Are they all direct? Or are they coming from a referral source? If you can pin down the source, you could correct the links at the source. If they are all direct, then I'd be suspicious of some technology routing mobile visitors to a "/mobile" page. Can you tell ...


2

All of these files which are being checked for including the /\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd\xef\xbf\xbd which you mention in your last comment are attempts by attackers to identify common files which can be vulnerable in your web root which on a mis-configured website can provide an attacker the information they need to penetrate your site. As an ...


0

404 errors on your site don't affect SEO in the sense that having too many 404's will reduce your ranking, there is however a caveat to this and that third party links to your site which terminate at 404 pages won't pass link juice and so your rank won't improve from that link, certainly not the end of the world for only one or two links but when you are ...


4

how this workaround indeed works PHP runs later in the request, so most of the time you can simply override any headers that Apache has already set in your PHP code. That's pretty much it. (Aside: Sending 403s through your 404 handler in this way obviously makes it harder to trigger a real 403 from your Apache config/.htaccess, if you should need to.) ...


1

In my experience, Google can take its time to update the index when it encounters 301 redirects. I've seen it take a week or two after Googlebot crawls a page before the new URL is reflected in the search index. 404 Not Found pages take 24 hours after crawling to be removed from the index. 410 Gone pages are removed from the index within hours. I ...


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I've seen this on several sites which have been around for a while. Links and URLs change over time, but Google doesn't tend to forget them. Sometimes the "Linked from" URL has been gone for years but Google still flags these up from time to time, probably just to make sure you don't miss anything. As @abhinsit mentions, you can use a 410 header on anything ...


3

There are two types of redirects : 1) 301 : permanent redirect -> If you have added this, then google will know that you have permanently moved this page and will store this in its index. 2) 302 : temporary redirect -> This will not let crawler index the redirection permanently. Firstly make sure that the redirection is 301 permanent redirect. Also google ...



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