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WordPress URLs not returning 404 Pages – SEO

I need some help with WordPress following a hack.

I’ve cleaned the hack completely and Google has removed the “This site may be hacked” flag.

The hack submitted a plethora of URLs to Google that contain a random string at the end of each valid URL. These show as Japanese links in google search.

There are URLs listed that show as:

www.example.co.uk/?WGlaVUdsVVNHUnNXVzFzY2xwVE1YbFphVGg1VFZSSmVFOVVTVFZQUjJNOWNFUT14b0g

If I click the link, it shows the sites correct homepage rather than showing a 404 page.

If I go to www.example.co.uk/thispagedoesnotesist it displays the 404 error just fine.

Is there a way I can get pages with these random URL strings to show a 404 error?

Any help or advice would be great.

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2

Answers


  1. 0

    The problem is that those links point to your home page with parameters. Those random strings of text are not passed as segments of url nor pages since they are preceded with ?.

    There isn’t a whole lot you can do. If I were in your place I would just report the links and request their removal from Google’s side. Don’t worry about it on your end.

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  2. 0

    You can force URLs that contain a long random query string to a 404 with something like the following mod_rewrite directives in .htaccess. This needs to go before your existing WordPress directives:

    RewriteCond %{QUERY_STRING} ^w{30,}$
RewriteRule ^$ - [R=404,L]

    A request for the document root (home page) that contains a query string of 30 or more letters/digits then serve a 404.

    However, if these are Japanese characters in the URL (as opposed to a-z as in your example) then the above might not match, so try the following instead:

    RewriteCond %{QUERY_STRING} ^[^=]{30,}$

    Which matches all chars except =.

    UPDATE: To match an optional = at the end then you can include =? before the $ in the above regex. For example ^w{30,}=?$ or ^[^=]{30,}=?$.

    If you don’t use query strings at all then you could change the RewriteCond directive to the following, which matches any query string (that is at least 1 character).

    RewriteCond %{QUERY_STRING} .
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